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Preview: Recent Articles in Phys. Rev. D

Recent Articles in Phys. Rev. D



Recent articles in Physical Review D



Published: 2017-07-24T12:07:21-04:00

 



Electromagnetic decays of the neutral pion

2017-07-24T10:00:00-04:00

Author(s): Esther Weil, Gernot Eichmann, Christian S. Fischer, and Richard Williams
We complement studies of the neutral pion transition form factor π^{0}→γ^{(*)}γ^{(*)} with calculations for the electromagnetic decay widths of the processes π^{0}→e^{+}e^{−}, π^{0}→e^{+}e^{−}γ and π^{0}→e^{+}e^{−}e^{+}e^{−}. Their common feature is that the singly or doubly virtual transition form ...
[Phys. Rev. D 96, 014021] Published Mon Jul 24, 2017



Excesses of cosmic ray spectra from a single nearby source

2017-07-24T10:00:00-04:00

Author(s): Wei Liu, Xiao-Jun Bi, Su-Jie Lin, Bing-Bing Wang, and Peng-Fei Yin
Growing evidence reveals universal hardening on various cosmic ray spectra, e.g., proton, positron, as well as antiproton fractions. Such universality may indicate they have a common origin. In this paper, we argue that these widespread excesses can be accounted for by a nearby supernova remnant sur...
[Phys. Rev. D 96, 023006] Published Mon Jul 24, 2017



Effective temperatures and radiation spectra for a higher-dimensional Schwarzschild–de Sitter black hole

2017-07-24T10:00:00-04:00

Author(s): P. Kanti and T. Pappas
The absence of a true thermodynamical equilibrium for an observer located in the causal area of a Schwarzschild–de Sitter spacetime has repeatedly raised the question of the correct definition of its temperature. In this work, we consider five different temperatures for a higher-dimensional Schwarzs...
[Phys. Rev. D 96, 024038] Published Mon Jul 24, 2017



Fundamental photon orbits: Black hole shadows and spacetime instabilities

2017-07-24T10:00:00-04:00

Author(s): Pedro V. P. Cunha, Carlos A. R. Herdeiro, and Eugen Radu
The standard black holes (BHs) in general relativity, as well as other ultracompact objects (with or without an event horizon) admit planar circular photon orbits. These light rings (LRs) determine several spacetime properties. For instance, stable LRs trigger instabilities and, in spherical symmetr...
[Phys. Rev. D 96, 024039] Published Mon Jul 24, 2017



Time evolution in deparametrized models of loop quantum gravity

2017-07-24T10:00:00-04:00

Author(s): Mehdi Assanioussi, Jerzy Lewandowski, and Ilkka Mäkinen
An important aspect in understanding the dynamics in the context of deparametrized models of loop quantum gravity (LQG) is to obtain a sufficient control on the quantum evolution generated by a given Hamiltonian operator. More specifically, we need to be able to compute the evolution of relevant phy...
[Phys. Rev. D 96, 024043] Published Mon Jul 24, 2017



Mass ladder operators from spacetime conformal symmetry

2017-07-24T10:00:00-04:00

Author(s): Vitor Cardoso, Tsuyoshi Houri, and Masashi Kimura
Ladder operators can be useful constructs, allowing for unique insight and intuition. In fact, they have played a special role in the development of quantum mechanics and field theory. Here, we introduce a novel type of ladder operators, which map a scalar field onto another massive scalar field. We...
[Phys. Rev. D 96, 024044] Published Mon Jul 24, 2017



Noether’s theorems and conserved currents in gauge theories in the presence of fixed fields

2017-07-24T10:00:00-04:00

Author(s): Gábor Zsolt Tóth
We extend the standard construction of conserved currents for matter fields in general relativity to general gauge theories. In the original construction, the conserved current associated with a spacetime symmetry generated by a Killing field h^{μ} is given by sqrt[−g]T^{μν}h_{ν}, where T^{μν} is th...
[Phys. Rev. D 96, 025018] Published Mon Jul 24, 2017



Markov chain Monte Carlo techniques applied to parton distribution functions determination: Proof of concept

2017-07-21T10:00:00-04:00

Author(s): Yémalin Gabin Gbedo and Mariane Mangin-Brinet
We present a new procedure to determine parton distribution functions (PDFs), based on Markov chain Monte Carlo (MCMC) methods. The aim of this paper is to show that we can replace the standard χ^{2} minimization by procedures grounded on statistical methods, and on Bayesian inference in particular,...
[Phys. Rev. D 96, 014015] Published Fri Jul 21, 2017



Topology and stability of the Kondo phase in quark matter

2017-07-21T10:00:00-04:00

Author(s): Shigehiro Yasui, Kei Suzuki, and Kazunori Itakura
We investigate properties of the ground state of a light-quark matter with heavy-quark impurities. This system exhibits the “QCD Kondo effect” where the interaction strength between a light quark near the Fermi surface and a heavy quark increases with decreasing energy of the light quark toward the ...
[Phys. Rev. D 96, 014016] Published Fri Jul 21, 2017



Strong couplings and form factors of charmed mesons in holographic QCD

2017-07-21T10:00:00-04:00

Author(s): Alfonso Ballon-Bayona, Gastão Krein, and Carlisson Miller
We extend the two-flavor hard-wall holographic model of Erlich, Katz, Son, and Stephanov [Phys. Rev. Lett. 95, 261602 (2005)] to four flavors to incorporate strange and charm quarks. The model incorporates chiral and flavor symmetry breaking and provides a reasonable description of masses and weak d...
[Phys. Rev. D 96, 014017] Published Fri Jul 21, 2017



Hidden-charm pentaquarks as a meson-baryon molecule with coupled channels for D[over ¯]^{(*)}Λ_{c} and D[over ¯]^{(*)}Σ_{c}^{(*)}

2017-07-21T10:00:00-04:00

Author(s): Yasuhiro Yamaguchi and Elena Santopinto
The recent observation of two hidden-charm pentaquark states by LHCb collaborations prompted us to investigate the exotic states close to the D[over ¯]Λ_{c}, D[over ¯]^{*}Λ_{c}, D[over ¯]Σ_{c}, D[over ¯]Σ_{c}^{*}, D[over ¯]^{*}Σ_{c} and D[over ¯]^{*}Σ_{c}^{*} thresholds. We therefore studied the had...
[Phys. Rev. D 96, 014018] Published Fri Jul 21, 2017



Finite temperature QCD four-point function in the presence of a weak magnetic field within the hard thermal loop approximation

2017-07-21T10:00:00-04:00

Author(s): Najmul Haque
We compute the weak magnetic field correction to the four-point quark-gluon vertex at finite temperature and chemical potential within the hard thermal loop approximation. The resulting four-point quark-gluon vertex satisfies the Ward identity with the three-point quark-gluon vertex.
[Phys. Rev. D 96, 014019] Published Fri Jul 21, 2017



No-go theorem for fully supersymmetric GUTs with metastable supersymmetry breaking

2017-07-21T10:00:00-04:00

Author(s): Jean-François Fortin and Jean-Samuel Leboeuf
We introduce fully SUSic grand unified theories (SGUTs), supersymmetry (SUSY) grand unified theories that, upon symmetry breaking through the Higgs mechanism, decompose into a visible sector and an extra sector where the dynamics of the extra sector gauge group is responsible for SUSY breaking. Full...
[Phys. Rev. D 96, 015025] Published Fri Jul 21, 2017



Scaling from gauge and scalar radiation in Abelian-Higgs string networks

2017-07-21T10:00:00-04:00

Author(s): Mark Hindmarsh, Joanes Lizarraga, Jon Urrestilla, David Daverio, and Martin Kunz
We investigate cosmic string networks in the Abelian Higgs model using data from a campaign of large-scale numerical simulations on lattices of up to 4096^{3} grid points. We observe scaling or self-similarity of the networks over a wide range of scales and estimate the asymptotic values of the mean...
[Phys. Rev. D 96, 023525] Published Fri Jul 21, 2017



Nonspinning binary black hole merger scenario revisited

2017-07-21T10:00:00-04:00

Author(s): James Healy, Carlos O. Lousto, and Yosef Zlochower
We present the results of 14 simulations of nonspinning black hole binaries with mass ratios q=m_{1}/m_{2} in the range 1/100≤q≤1. For each of these simulations we perform three runs at increasing resolution to assess the finite difference errors and to extrapolate the results to infinite resolution...
[Phys. Rev. D 96, 024031] Published Fri Jul 21, 2017



Minimal theory of quasidilaton massive gravity

2017-07-21T10:00:00-04:00

Author(s): Antonio De Felice, Shinji Mukohyama, and Michele Oliosi
We introduce a quasidilaton scalar field to the minimal theory of massive gravity with the Minkowski fiducial metric, in such a way that the quasidilaton global symmetry is maintained and that the theory admits a stable self-accelerating de Sitter solution. We start with a precursor theory that cont...
[Phys. Rev. D 96, 024032] Published Fri Jul 21, 2017



Nonlinear stability of a brane wormhole

2017-07-21T10:00:00-04:00

Author(s): Yumi Akai and Ken-ichi Nakao
We analytically study the nonlinear stability of a spherically symmetric wormhole supported by an infinitesimally thin brane of negative tension, which has been devised by Barcelo and Visser. We consider a situation in which a thin spherical shell composed of dust falls into an initially static worm...
[Phys. Rev. D 96, 024033] Published Fri Jul 21, 2017



Universal black hole stability in four dimensions

2017-07-21T10:00:00-04:00

Author(s): Pablo Bueno and Pablo A. Cano
We show that four-dimensional black holes become stable below a certain mass when the Einstein-Hilbert action is supplemented with higher-curvature terms. We prove this to be the case for an infinite family of ghost-free theories involving terms of arbitrarily high order in curvature. The new black ...
[Phys. Rev. D 96, 024034] Published Fri Jul 21, 2017



Vacuum structure and PT-symmetry breaking of the non-Hermetian (iϕ^{3}) theory

2017-07-21T10:00:00-04:00

Author(s): Abouzeid M. Shalaby
In this work, we study the PT-symmetric (iϕ^{3}) theory using the effective action formalism. To test the accuracy of the used technique, we apply it first to the PT-symmetric (−ϕ^{4}) theory, where we reproduce the same results obtained in the literature using the method of Dyson-Schwinger equation...
[Phys. Rev. D 96, 025015] Published Fri Jul 21, 2017



Entropy evolution of moving mirrors and the information loss problem

2017-07-21T10:00:00-04:00

Author(s): Pisin Chen and Dong-han Yeom
We investigate the entanglement entropy and the information flow of two-dimensional moving mirrors. Here we point out that various mirror trajectories can help to mimic different candidate resolutions to the information loss paradox following the semiclassical quantum field theory: (i) a suddenly st...
[Phys. Rev. D 96, 025016] Published Fri Jul 21, 2017



Large N expansion of the sphere free energy

2017-07-21T10:00:00-04:00

Author(s): Grigory Tarnopolsky
We propose formulas for the 1/N correction to the sphere free energy of theories with 4-fermion interactions, which are conformal for d>2. We also propose a formula for the scalar O(N) model. Expanding these formulas in small ε near various integer dimensions, we find a perfect agreement with results...
[Phys. Rev. D 96, 025017] Published Fri Jul 21, 2017



Mock modular index of M2-M5 brane systems

2017-07-21T10:00:00-04:00

Author(s): Tadashi Okazaki and Douglas J. Smith
We present Bogomolny-Prasad-Sommerfield (BPS) indices of the supergroup Wess-Zumino-Witten (WZW) models that live on intersecting M2-M5-brane systems. They can encode data of the stretched M2-branes between M5-branes and count the BPS states. They are generally expressed in terms of mock theta funct...
[Phys. Rev. D 96, 026017] Published Fri Jul 21, 2017



Resolving the atmospheric octant by an improved measurement of the reactor angle

2017-07-20T10:00:00-04:00

Author(s): Sabya Sachi Chatterjee, Pedro Pasquini, and J. W. F. Valle
Taking into account the current global information on neutrino oscillation parameters we forecast the capabilities of future long-baseline experiments such as DUNE and T2HK in settling the atmospheric octant puzzle. We find that a good measurement of the reactor angle θ_{13} plays a key role in fixi...
[Phys. Rev. D 96, 011303(R)] Published Thu Jul 20, 2017



Nonleptonic charmless decays of B_{c}→TP,TV in the perturbative QCD approach

2017-07-20T10:00:00-04:00

Author(s): Xin Liu, Run-Hui Li, Zhi-Tian Zou, and Zhen-Jun Xiao
Two-body charmless hadronic B_{c} decays involving a light 1^{3}P_{2}-tensor (T) meson are investigated for the first time within the framework of perturbative QCD (pQCD) at leading order, in which the other meson is the lightest pseudoscalar (P) or vector (V) state. The concerned processes can only...
[Phys. Rev. D 96, 013005] Published Thu Jul 20, 2017



Compact pentaquark structures

2017-07-20T10:00:00-04:00

Author(s): Elena Santopinto and Alessandro Giachino
We investigated the possibility that the lightest pentaquark state recently reported by the LHC_{b} Collaboration [R. Aaij et al., Phys. Rev. Lett. 115, 072001 (2015); 117, 082002 (2016); 117, 082003 (2016)], P_{c}^{+}(4380), could be described as a compact pentaquark state. By using very general ar...
[Phys. Rev. D 96, 014014] Published Thu Jul 20, 2017



Exploring N_{f}=2+1 QCD thermodynamics from the gradient flow

2017-07-20T10:00:00-04:00

Author(s): Yusuke Taniguchi, Shinji Ejiri, Ryo Iwami, Kazuyuki Kanaya, Masakiyo Kitazawa, Hiroshi Suzuki, Takashi Umeda, and Naoki Wakabayashi (WHOT-QCD Collaboration)
The energy-momentum tensor plays an important role in QCD thermodynamics. Its expectation value contains information of the pressure and the energy density as its diagonal part. Further properties like viscosity and specific heat can be extracted from its correlation function. A nonperturbative eval...
[Phys. Rev. D 96, 014509] Published Thu Jul 20, 2017



K→πνν[over ¯]

2017-07-20T10:00:00-04:00

Author(s): Andreas Crivellin, Giancarlo D’Ambrosio, Teppei Kitahara, and Ulrich Nierste
The standard model (SM) prediction for the CP-violating quantity ε_{K}^{′}/ε_{K} deviates from its measured value by 2.8σ. It has been shown that this tension can be resolved within the minimal supersymmetric standard model (MSSM) through gluino-squark box diagrams, even if squarks and gluinos are m...
[Phys. Rev. D 96, 015023] Published Thu Jul 20, 2017



Top quark FCNC couplings at future circular hadron electron colliders

2017-07-20T10:00:00-04:00

Author(s): H. Denizli, A. Senol, A. Yilmaz, I. Turk Cakir, H. Karadeniz, and O. Cakir
A study of single top quark production via flavor changing neutral current interactions at tqγ vertices is performed at the future circular hadron electron collider. The signal cross sections for the processes e^{−}p→e^{−}W^{±}q+X and e^{−}p→e^{−}W^{±}bq+X in the collision of an electron beam with e...
[Phys. Rev. D 96, 015024] Published Thu Jul 20, 2017



Optical absorption of silicon nitride membranes at 1064 nm and at 1550 nm

2017-07-20T10:00:00-04:00

Author(s): Jessica Steinlechner, Christoph Krüger, Iain W. Martin, Angus Bell, Jim Hough, Henning Kaufer, Sheila Rowan, Roman Schnabel, and Sebastian Steinlechner
Because of a low mechanical loss, thin films made of silicon nitride (Si_{3}N_{4}) are interesting for fundamental research and development in the field of gravitational-wave detection. Si_{3}N_{4} membranes allow for the characterization of quantum radiation pressure noise (RPN), which will be a li...
[Phys. Rev. D 96, 022007] Published Thu Jul 20, 2017



Preheating in an inflationary model with disformal coupling

2017-07-20T10:00:00-04:00

Author(s): Khamphee Karwan and Phongpichit Channuie
In this work, we investigate the preheating mechanism in a disformally coupled inflationary model where the scalar field ϕ (which is the inflaton field) naturally coupled to another matter field χ induced by the disformal transformation. In the present scenario, novel derivative interactions mixing ...
[Phys. Rev. D 96, 023524] Published Thu Jul 20, 2017



Instability of static semiclosed worlds in generalized Galileon theories

2017-07-20T10:00:00-04:00

Author(s): O. A. Evseev and O. I. Melichev
We consider generalized Galileon theories within general relativity in four-dimensional spacetime. We provide the argument showing that the generalized Galileons described by a wide class of Lagrangians do not admit stable, static, spherically symmetric semiclosed worlds. We also show that in a clas...
[Phys. Rev. D 96, 024030] Published Thu Jul 20, 2017



Gravitational domain walls and the dynamics of the gravitational constant G

2017-07-20T10:00:00-04:00

Author(s): Claudio Bunster and Andrés Gomberoff
From the point of view of elementary particle physics, the gravitational constant G is extraordinarily small. This has led to asking whether it could have decayed to its present value from an initial one commensurate with microscopical units. A mechanism that leads to such a decay is proposed herein...
[Phys. Rev. D 96, 025013] Published Thu Jul 20, 2017



Observation of the B^{+}→D^{*}^{−}K^{+}π^{+} decay

2017-07-19T10:00:00-04:00

Author(s): R. Aaij et al. (LHCb Collaboration)
The B^{+}→D^{*}^{−}K^{+}π^{+} decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosi...
[Phys. Rev. D 96, 011101(R)] Published Wed Jul 19, 2017



Mass spectrum and decay constants of radially excited vector mesons

2017-07-19T10:00:00-04:00

Author(s): Fredy F. Mojica, Carlos E. Vera, Eduardo Rojas, and Bruno El-Bennich
We calculate the masses and weak decay constants of flavorless and flavored ground and radially excited J^{P}=1^{−} mesons within a Poincaré covariant continuum framework based on the Bethe-Salpeter equation. We use in both the quark’s gap equation and the meson bound-state equation an infrared mass...
[Phys. Rev. D 96, 014012] Published Wed Jul 19, 2017



Charmed mesons with a symmetry-preserving contact interaction

2017-07-19T10:00:00-04:00

Author(s): Fernando E. Serna, Bruno El-Bennich, and Gastão Krein
A symmetry-preserving treatment of a vector-vector contact interaction is used to study charmed heavy-light mesons. The contact interaction is a representation of nonperturbative kernels used in Dyson-Schwinger and Bethe-Salpeter equations of QCD. The Dyson-Schwinger equation is solved for the u, d,...
[Phys. Rev. D 96, 014013] Published Wed Jul 19, 2017



Scalar production in association with a Z boson at the LHC and ILC: The mixed Higgs-radion case of warped models

2017-07-19T10:00:00-04:00

Author(s): Andrei Angelescu, Grégory Moreau, and François Richard
The radion scalar field might be the lightest new particle predicted by extradimensional extensions of the standard model. It could thus lead to the first signatures of new physics at the LHC collider. We perform a complete study of the radion production in association with the Z gauge boson in the ...
[Phys. Rev. D 96, 015019] Published Wed Jul 19, 2017



Implications of texture zeros for a variant of tribimaximal mixing

2017-07-19T10:00:00-04:00

Author(s): Sanjeev Kumar and Radha Raman Gautam
We study the phenomenological implications of the presence of two texture zeros in the neutrino mass matrix assuming that the neutrino mixing matrix has its first column identical to that of the tribimaximal mixing matrix. Only two patterns of this kind are compatible with the experimental data. The...
[Phys. Rev. D 96, 015020] Published Wed Jul 19, 2017



Using the modified matrix element method to constrain L_{μ}−L_{τ} interactions

2017-07-19T10:00:00-04:00

Author(s): Fatemeh Elahi and Adam Martin
In this paper, we explore the discriminatory power of the matrix element method (MEM) in constraining the L_{μ}−L_{τ} model at the LHC. The Z^{′} boson associated with the spontaneously broken U(1)_{L_{μ}−L_{τ}} symmetry only interacts with the second and third generation of leptons at tree level, a...
[Phys. Rev. D 96, 015021] Published Wed Jul 19, 2017



Axion and neutrino physics in a U(1)-enhanced supersymmetric model

2017-07-19T10:00:00-04:00

Author(s): Y. H. Ahn
Motivated by the flavored Peccei-Quinn symmetry for unifying the flavor physics and string theory, we construct an explicit model by introducing a U(1) symmetry such that the U(1)_{X}−[gravity]^{2} anomaly-free condition together with the standard model flavor structure demands additional sterile ne...
[Phys. Rev. D 96, 015022] Published Wed Jul 19, 2017



Vacuum current induced by an axial-vector condensate and electron anomalous magnetic moment in a magnetic field

2017-07-19T10:00:00-04:00

Author(s): A. F. Bubnov, N. V. Gubina, and V. Ch. Zhukovsky
In this paper, we consider vacuum polarization effects in the model of charged fermions with anomalous magnetic moment and axial-vector interaction term in a constant and uniform magnetic field. Nontrivial corrections to the effective Lagrangian from the anomalous moment and axial-vector term are ca...
[Phys. Rev. D 96, 016011] Published Wed Jul 19, 2017



Scalar field descriptions of two dark energy models

2017-07-19T10:00:00-04:00

Author(s): Grigorios Panotopoulos
We give a scalar field description of two dark energy parametrizations, and we analyze in detail its cosmology both at the level of background evolution and at the level of linear perturbations. In particular, we compute the statefinder parameters and the growth index as functions of the redshift fo...
[Phys. Rev. D 96, 023520] Published Wed Jul 19, 2017



Revisiting the velocity-dependent one-scale model for monopoles

2017-07-19T10:00:00-04:00

Author(s): L. Sousa and P. P. Avelino
We revisit the physical properties of global and local monopoles and discuss their implications in the dynamics of monopole networks. In particular, we review the velocity-dependent one-scale (VOS) model for global and local monopoles and propose physically motivated changes to its equations. We sug...
[Phys. Rev. D 96, 023521] Published Wed Jul 19, 2017



New constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-α forest data

2017-07-19T10:00:00-04:00

Author(s): Vid Iršič, Matteo Viel, Martin G. Haehnelt, James S. Bolton, Stefano Cristiani, George D. Becker, Valentina D’Odorico, Guido Cupani, Tae-Sun Kim, Trystyn A. M. Berg, Sebastian López, Sara Ellison, Lise Christensen, Kelly D. Denney, and Gábor Worseck

Using data on the Lyman-α spectra obtained by the X-shooter and HIRES/MIKE spectrographs, bounds on warm dark matter are computed using state-of-the-art analysis. This places a new best lower limit of 5.3 keV on the mass of thermal relic dark matter.

(image)
[Phys. Rev. D 96, 023522] Published Wed Jul 19, 2017



Constraining dark energy dynamics in extended parameter space

2017-07-19T10:00:00-04:00

Author(s): Eleonora Di Valentino, Alessandro Melchiorri, Eric V. Linder, and Joseph Silk
Dynamical dark energy has been recently suggested as a promising and physical way to solve the 3 sigma tension on the value of the Hubble constant H_{0} between the direct measurement of Riess et al. (2016) (R16, hereafter) and the indirect constraint from cosmic microwave anisotropies obtained by t...
[Phys. Rev. D 96, 023523] Published Wed Jul 19, 2017



Inflation with a smooth constant-roll to constant-roll era transition

2017-07-19T10:00:00-04:00

Author(s): S. D. Odintsov and V. K. Oikonomou
In this paper, we study canonical scalar field models, with a varying second slow-roll parameter, that allow transitions between constant-roll eras. In the models with two constant-roll eras, it is possible to avoid fine-tunings in the initial conditions of the scalar field. We mainly focus on the s...
[Phys. Rev. D 96, 024029] Published Wed Jul 19, 2017



New Kaluza-Klein instantons and the decay of AdS vacua

2017-07-19T10:00:00-04:00

Author(s): Hirosi Ooguri and Lev Spodyneiko

By performing clever manipulations of complicated equations of motion, the authors obtain new instanton solutions of eleven-dimensional supergravity. These results support a previously proposed conjecture that all non-supersymmetric anti-de-Sitter (AdS) vacua must be unstable.

(image)
[Phys. Rev. D 96, 026016] Published Wed Jul 19, 2017



Probing the top-quark width using the charge identification of b jets

2017-07-18T10:00:00-04:00

Author(s): Pier Paolo Giardino and Cen Zhang
We propose a new method for measuring the top-quark width based on the on-/off-shell ratio of b-charge asymmetry in pp→Wbj production at the LHC. The charge asymmetry removes virtually all backgrounds and related uncertainties, while remaining systematic and theoretical uncertainties can be taken un...
[Phys. Rev. D 96, 011901(R)] Published Tue Jul 18, 2017



Parton distribution functions, α_{s}, and heavy-quark masses for LHC Run II

2017-07-18T10:00:00-04:00

Author(s): S. Alekhin, J. Blümlein, S. Moch, and R. Plačakytė
We determine a new set of parton distribution functions (ABMP16), the strong coupling constant α_{s} and the quark masses m_{c}, m_{b} and m_{t} in a global fit to next-to-next-to-leading order (NNLO) in QCD. The analysis uses the MS[over ¯] scheme for α_{s} and all quark masses and is performed in ...
[Phys. Rev. D 96, 014011] Published Tue Jul 18, 2017



Light flavor-singlet scalars and walking signals in N_{f}=8 QCD on the lattice

2017-07-18T10:00:00-04:00

Author(s): Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett, Masafumi Kurachi, Toshihide Maskawa, Kohtaroh Miura, Kei-ichi Nagai, Hiroshi Ohki, Enrico Rinaldi, Akihiro Shibata, Koichi Yamawaki, and Takeshi Yamazaki (LatKMI Collaboration)
Based on the highly improved staggered quark action, we perform lattice simulations of N_{f}=8 QCD and confirm our previous observations, both of a flavor-singlet scalar meson (denoted as σ) as light as the pion and of various “walking signals” through the low-lying spectra, with higher statistics, ...
[Phys. Rev. D 96, 014508] Published Tue Jul 18, 2017



Gravitational waves in doubly coupled bigravity

2017-07-18T10:00:00-04:00

Author(s): Philippe Brax, Anne-Christine Davis, and Johannes Noller
We consider gravitational waves from the point of view of both their production and their propagation in doubly coupled bigravity in the metric formalism. In bigravity, the two gravitons are coupled by a nondiagonal mass matrix and show birefrigence. In particular, we find that one of the two gravit...
[Phys. Rev. D 96, 023518] Published Tue Jul 18, 2017



Theoretical accuracy in cosmological growth estimation

2017-07-18T10:00:00-04:00

Author(s): Benjamin Bose, Kazuya Koyama, Wojciech A. Hellwing, Gong-Bo Zhao, and Hans A. Winther
We elucidate the importance of the consistent treatment of gravity-model specific nonlinearities when estimating the growth of cosmological structures from redshift space distortions (RSD). Within the context of standard perturbation theory (SPT), we compare the predictions of two theoretical templa...
[Phys. Rev. D 96, 023519] Published Tue Jul 18, 2017



Quantum causal graph dynamics

2017-07-18T10:00:00-04:00

Author(s): Pablo Arrighi and Simon Martiel
Consider a graph having quantum systems lying at each node. Suppose that the whole thing evolves in discrete time steps, according to a global, unitary causal operator. By causal we mean that information can only propagate at a bounded speed, with respect to the distance given by the graph. Suppose,...
[Phys. Rev. D 96, 024026] Published Tue Jul 18, 2017



Quantum aspects of nonlocal approach to the cosmological constant problem

2017-07-18T10:00:00-04:00

Author(s): Ichiro Oda
We have recently presented a manifestly local and general coordinate invariant formulation of a nonlocal approach to the cosmological constant problem which has been proposed by Carroll and Remmen. In this article, based on our formulation, we investigate some quantum aspects of this approach to the...
[Phys. Rev. D 96, 024027] Published Tue Jul 18, 2017



Characteristic formulation for metric f(R) gravity

2017-07-18T10:00:00-04:00

Author(s): Bishop Mongwane
In recent years, the characteristic formulation of numerical relativity has found increasing use in the extraction of gravitational radiation from numerically generated spacetimes. In this paper, we formulate the characteristic initial value problem for f(R) gravity. We consider, in particular, the ...
[Phys. Rev. D 96, 024028] Published Tue Jul 18, 2017



Probing the CP nature of the Higgs coupling in tt[over ¯]h events at the LHC

2017-07-17T10:00:00-04:00

Author(s): S. Amor dos Santos, M. C. N. Fiolhais, R. Frederix, R. Gonçalo, E. Gouveia, R. Martins, A. Onofre, C. M. Pease, H. Peixoto, A. Reigoto, R. Santos, and J. Silva
The determination of the CP nature of the Higgs coupling to top quarks is addressed in this paper, using tt[over ¯]h events produced in sqrt[s]=13  TeV proton-proton collisions at the LHC. Dileptonic final states are employed, with two oppositely charged leptons and four jets, corresponding to the d...
[Phys. Rev. D 96, 013004] Published Mon Jul 17, 2017



Note on lattice regularization and equal-time correlators for parton distribution functions

2017-07-17T10:00:00-04:00

Author(s): G. C. Rossi and M. Testa
We show that a recent interesting idea to circumvent the difficulties with the continuation of parton distribution functions to the Euclidean region, which consists in looking at equal time correlators between proton states of infinite momentum, encounters some problems related to the power divergen...
[Phys. Rev. D 96, 014507] Published Mon Jul 17, 2017



Calculable cosmological CP violation and resonant leptogenesis

2017-07-17T10:00:00-04:00

Author(s): Avtandil Achelashvili and Zurab Tavartkiladze
Within the extension of MSSM by two right-handed neutrinos, with tree level mass degeneracy, we address the issue of leptogenesis. Investigating the quantum corrections in detail, we show that the lepton asymmetry is induced at the one-loop level and a decisive role is played by the tau lepton Yukaw...
[Phys. Rev. D 96, 015015] Published Mon Jul 17, 2017



Differentiating U(1)^{′} supersymmetric models with right sneutrino and neutralino dark matter

2017-07-17T10:00:00-04:00

Author(s): Jack Y. Araz, Mariana Frank, and Benjamin Fuks
We perform a detailed analysis of dark matter signals of supersymmetric models containing an extra U(1)^{′} gauge group. We investigate scenarios in which either the right sneutrino or the lightest neutralino are phenomenologically acceptable dark matter candidates and we explore the parameter space...
[Phys. Rev. D 96, 015017] Published Mon Jul 17, 2017



Terrestrial effects on dark matter-electron scattering experiments

2017-07-17T10:00:00-04:00

Author(s): Timon Emken, Chris Kouvaris, and Ian M. Shoemaker
A well-studied possibility is that dark matter may reside in a sector secluded from the Standard Model, except for the so-called photon portal: kinetic mixing between the ordinary and dark photons. Such interactions can be probed in dark matter direct detection experiments, and new experimental tech...
[Phys. Rev. D 96, 015018] Published Mon Jul 17, 2017



Fluctuation-induced modifications of the phase structure in (2+1)-flavor QCD

2017-07-17T10:00:00-04:00

Author(s): Fabian Rennecke and Bernd-Jochen Schaefer
The low-energy sector of QCD with N_{f}=2+1 dynamical quark flavors at nonvanishing chemical potential and temperature is studied with a nonperturbative functional renormalization group method. The analysis is performed in different truncations in order to explore fluctuation-induced modifications o...
[Phys. Rev. D 96, 016009] Published Mon Jul 17, 2017



Exploring correlations in the CGC wave function: Odd azimuthal anisotropy

2017-07-17T10:00:00-04:00

Author(s): Alex Kovner, Michael Lublinsky, and Vladimir Skokov
We extend the color glass condensate (CGC) approach to a calculation of the double inclusive gluon production by including the high density effect in the CGC wave function of the projectile (proton). Our main result is that these effects lead to the appearance of odd harmonics in the two particle co...
[Phys. Rev. D 96, 016010] Published Mon Jul 17, 2017



Dark stars: Gravitational and electromagnetic observables

2017-07-17T10:00:00-04:00

Author(s): Andrea Maselli, Pantelis Pnigouras, Niklas Grønlund Nielsen, Chris Kouvaris, and Kostas D. Kokkotas
Theoretical models of self-interacting dark matter represent a promising answer to a series of open problems within the so-called collisionless cold dark matter paradigm. In case of asymmetric dark matter, self-interactions might facilitate gravitational collapse and potentially lead to the formatio...
[Phys. Rev. D 96, 023005] Published Mon Jul 17, 2017



Perfect fluid in Lagrangian formulation due to generalized three-form field

2017-07-17T10:00:00-04:00

Author(s): Pitayuth Wongjun
A Lagrangian formulation of perfect fluid due to a noncanonical three-form field is investigated. The thermodynamic quantities such as energy density, pressure and the four velocity are obtained and then analyzed by comparing with the k-essence scalar field. The nonrelativistic matter due to the gen...
[Phys. Rev. D 96, 023516] Published Mon Jul 17, 2017



Anisotropic multiple bounce models

2017-07-17T10:00:00-04:00

Author(s): Anna Paula Bacalhau, Patrick Peter, and Sandro D. P. Vitenti
We analyze the Galileon ghost condensate implementation of a bouncing cosmological model in the presence of a non-negligible anisotropic stress. We exhibit its structure, which we find to be far richer than previously thought. In particular, even restricting attention to a single set of underlying m...
[Phys. Rev. D 96, 023517] Published Mon Jul 17, 2017



Addendum to “Violating the string winding number maximally in anti–de Sitter space”

2017-07-17T10:00:00-04:00

Author(s): Gaston Giribet
We revisit the computation of maximally winding violating string amplitudes in three-dimensional anti–de Sitter space discussed in Ref. G. Giribet, Violating the string winding number maximally in anti-de Sitter space, Phys. Rev. D 84, 024045 (2011). Here, we give an alternative derivation of these ...
[Phys. Rev. D 96, 024024] Published Mon Jul 17, 2017



Correspondence between Einstein-Yang-Mills-Lorentz systems and dynamical torsion models

2017-07-17T10:00:00-04:00

Author(s): Jose A. R. Cembranos and Jorge Gigante Valcarcel
In the framework of Einstein-Yang-Mills theories, we study the gauge Lorentz group and establish a particular correspondence between this case and a certain class of theories with torsion within Riemann-Cartan space-times. This relation is specially useful in order to simplify the problem of finding...
[Phys. Rev. D 96, 024025] Published Mon Jul 17, 2017



Multifaceted Schwinger effect in de Sitter space

2017-07-17T10:00:00-04:00

Author(s): Ramkishor Sharma and Suprit Singh
We investigate particle production à la the Schwinger mechanism in an expanding, flat de Sitter patch as is relevant for the inflationary epoch of our Universe. Defining states and particle content in curved spacetime is certainly not a unique process. There being different prescriptions on how that...
[Phys. Rev. D 96, 025012] Published Mon Jul 17, 2017



Inhomogeneous Thermal Quenches

2017-07-17T10:00:00-04:00

Author(s): Kiyoumars A. Sohrabi
We describe holographic thermal quenches that are inhomogeneous in space. The main characteristic of the quench is to take the system far from its equilibrium configuration. Except in special extreme cases, the problem has no analytic solution. Using the numerical holography methods, we study differ...
[Phys. Rev. D 96, 026012] Published Mon Jul 17, 2017



Twin supergravities from Yang-Mills theory squared

2017-07-17T10:00:00-04:00

Author(s): A. Anastasiou, L. Borsten, M. J. Duff, M. J. Hughes, A. Marrani, S. Nagy, and M. Zoccali
We consider “twin supergravities”—pairs of supergravities with N_{+} and N_{−} supersymmetries, N_{+}>N_{−}, with identical bosonic sectors—in the context of tensoring super Yang-Mills multiplets. It is demonstrated that the pairs of twin supergravity theories are related through their left and right...
[Phys. Rev. D 96, 026013] Published Mon Jul 17, 2017



Geons and the quantum information metric

2017-07-17T10:00:00-04:00

Author(s): Musema Sinamuli and Robert B. Mann
We investigate the proposed duality between a quantum information metric in a CFT_{d+1} and the volume of a maximum time slice in the dual AdS_{d+2} for topological geons. Examining the specific cases of Banados-Teitelboim-Zannelli (BTZ) black holes and planar Schwarzschild–anti-de Sitter black hole...
[Phys. Rev. D 96, 026014] Published Mon Jul 17, 2017



Viscosity bound for anisotropic superfluids with dark matter sector

2017-07-17T10:00:00-04:00

Author(s): Marek Rogatko and Karol I. Wysokiński
The shear viscosity to the entropy density ratio η/s of the anisotropic superfluid has been calculated by means of the gauge/gravity duality in the presence of the dark matter sector. The dark matter has been described by the Yang-Mills field analogous to the one describing the visible matter sector...
[Phys. Rev. D 96, 026015] Published Mon Jul 17, 2017



Erratum: Merging compact binaries in hierarchical triple systems: Resonant excitation of binary eccentricity [Phys. Rev. D 92, 124048 (2015)]

2017-07-17T10:00:00-04:00

Author(s): Bin Liu, Dong Lai, and Ye-Fei Yuan
[Phys. Rev. D 96, 029901] Published Mon Jul 17, 2017



Heavy flavor production in high-energy pp collisions: Color dipole description

2017-07-14T10:00:00-04:00

Author(s): Victor P. Goncalves, Boris Kopeliovich, Jan Nemchik, Roman Pasechnik, and Irina Potashnikova
We present a detailed study of open heavy flavor production in high-energy pp collisions at the LHC in the color dipole framework. The transverse momentum distributions of produced b-jets, accounting for the jet energy loss, as well as produced open charm D and bottom B mesons in distinct rapidity i...
[Phys. Rev. D 96, 014010] Published Fri Jul 14, 2017



Improved lattice computation of proton decay matrix elements

2017-07-14T10:00:00-04:00

Author(s): Yasumichi Aoki, Taku Izubuchi, Eigo Shintani, and Amarjit Soni
We present an improved result for the lattice computation of the proton decay matrix elements in N_{f}=2+1 QCD. In this study, by adopting the error reduction technique of all-mode-averaging, a significant improvement of the statistical accuracy is achieved for the relevant form factor of proton (an...
[Phys. Rev. D 96, 014506] Published Fri Jul 14, 2017



Loop suppressed light fermion masses with U(1)_{R} gauge symmetry

2017-07-14T10:00:00-04:00

Author(s): Takaaki Nomura and Hiroshi Okada
We propose a model with a two-Higgs doublet, where quark and charged-lepton masses in the first and second families are induced at one-loop level, and neutrino masses are induced at the two-loop level. In our model, we introduce an extra U(1)_{R} gauge symmetry that plays a crucial role in achieving...
[Phys. Rev. D 96, 015016] Published Fri Jul 14, 2017



Energy conservation and the chiral magnetic effect

2017-07-14T10:00:00-04:00

Author(s): David B. Kaplan, Sanjay Reddy, and Srimoyee Sen
We analyze the chiral magnetic effect in a homogeneous neutral plasma from the point of view of energy conservation, and construct an effective potential for the growth of maximally helical perturbations of the electromagnetic field. We show that a negative curvature at the origin of the potential, ...
[Phys. Rev. D 96, 016008] Published Fri Jul 14, 2017



Gravitational effects of condensed dark matter on strange stars

2017-07-14T10:00:00-04:00

Author(s): Grigorios Panotopoulos and Ilídio Lopes
In the present work we study the gravitational effects of condensed dark matter on strange stars. We consider self-interacting dark matter particles with properties consistent with current observational constraints, and dark matter inside the star is modeled as a Bose-Einstein condensate. We integra...
[Phys. Rev. D 96, 023002] Published Fri Jul 14, 2017



Prospects of establishing the origin of cosmic neutrinos using source catalogs

2017-07-14T10:00:00-04:00

Author(s): I. Bartos, M. Ahrens, C. Finley, and S. Márka
The cosmic neutrino flux recently discovered by IceCube will be instrumental in probing the highest-energy astrophysical processes. Nevertheless, the origin of these neutrinos is still unknown. While it would be more straightforward to identify a transient, or galactic source, class, finding a popul...
[Phys. Rev. D 96, 023003] Published Fri Jul 14, 2017



Electromagnetic chirp of a compact binary black hole: A phase template for the gravitational wave inspiral

2017-07-14T10:00:00-04:00

Author(s): Zoltán Haiman
The gravitational waves (GWs) from a binary black hole (BBH) with masses 10^{4}≲M≲10^{7}  M_{⊙} can be detected with the Laser Interferometer Space Antenna (LISA) once their orbital frequency exceeds 10^{−4}–10^{−5}  Hz. The binary separation at this stage is a=O(100)R_{g} (gravitational radius), an...
[Phys. Rev. D 96, 023004] Published Fri Jul 14, 2017



Primordial black hole constraints for extended mass functions

2017-07-14T10:00:00-04:00

Author(s): Bernard Carr, Martti Raidal, Tommi Tenkanen, Ville Vaskonen, and Hardi Veermäe
We revisit the cosmological and astrophysical constraints on the fraction of the dark matter in primordial black holes (PBHs) with an extended mass function. We consider a variety of mass functions, all of which are described by three parameters: a characteristic mass and width and a dark matter fra...
[Phys. Rev. D 96, 023514] Published Fri Jul 14, 2017



Revealing modified gravity signals in matter and halo hierarchical clustering

2017-07-14T10:00:00-04:00

Author(s): Wojciech A. Hellwing, Kazuya Koyama, Benjamin Bose, and Gong-Bo Zhao
We use a set of N-body simulations employing a modified gravity (MG) model with Vainshtein screening to study matter and halo hierarchical clustering. As test-case scenarios we consider two normal branch Dvali-Gabadadze-Porrati (nDGP) gravity models with mild and strong growth rate enhancement. We s...
[Phys. Rev. D 96, 023515] Published Fri Jul 14, 2017



Exact solutions and phenomenological constraints from massive scalars in a gravity’s rainbow spacetime

2017-07-14T10:00:00-04:00

Author(s): V. B. Bezerra, H. R. Christiansen, M. S. Cunha, and C. R. Muniz
We obtain the exact (confluent Heun) solutions to the massive scalar field in a gravity’s rainbow Schwarzschild metric. With these solutions at hand, we study the Hawking radiation resulting from the tunneling rate through the event horizon. We show that the emission spectrum obeys nonextensive stat...
[Phys. Rev. D 96, 024018] Published Fri Jul 14, 2017



No nonminimally coupled massless scalar hair for spherically symmetric neutral reflecting stars

2017-07-14T10:00:00-04:00

Author(s): Shahar Hod
It has recently been proved that horizonless compact stars with reflecting boundary conditions cannot support spatially regular matter configurations made of minimally coupled scalar fields, vector fields, and tensor fields. In the present paper we extend this intriguing no-hair property to the phys...
[Phys. Rev. D 96, 024019] Published Fri Jul 14, 2017



Scalar fields in black hole spacetimes

2017-07-14T10:00:00-04:00

Author(s): Izak Thuestad, Gaurav Khanna, and Richard H. Price
The time evolution of matter fields in black hole exterior spacetimes is a well-studied subject, spanning several decades of research. However, the behavior of fields in the black hole interior spacetime has only relatively recently begun receiving some attention from the research community. In this...
[Phys. Rev. D 96, 024020] Published Fri Jul 14, 2017



Raychaudhuri equation in spacetimes with torsion

2017-07-14T10:00:00-04:00

Author(s): Paulo Luz and Vincenzo Vitagliano
Given a spacetime with nonvanishing torsion, we discuss the equation for the evolution of the separation vector between infinitesimally close curves in a congruence. We show that the presence of a torsion field leads, in general, to tangent and orthogonal effects on the congruence; in particular, th...
[Phys. Rev. D 96, 024021] Published Fri Jul 14, 2017



Entropy of a Taub-bolt-AdS spacetime from an improved action principle

2017-07-14T10:00:00-04:00

Author(s): Rodrigo Aros
In this article the study of four-dimensional spaces with NUT charges and their ground states is continued. In particular, through the introduction of an improved action principle containing topological densities, it is shown that these spaces have simple and sound thermodynamical relations. As an e...
[Phys. Rev. D 96, 024022] Published Fri Jul 14, 2017



Construction and application of variations on the cylindrical gravitational waves of Weber, Wheeler, and Bonnor

2017-07-14T10:00:00-04:00

Author(s): Takashi Mishima and Shinya Tomizawa
To clarify certain nonlinear properties of strong gravitational field, we investigate cylindrically symmetric gravitational waves that are localized as regular wave packets in the space of radial and time coordinates. The waves are constructed by applying a certain kind of harmonic mapping method to...
[Phys. Rev. D 96, 024023] Published Fri Jul 14, 2017



Greybody factors for a minimally coupled massless scalar field in Einstein-Born-Infeld dilaton spacetime

2017-07-14T10:00:00-04:00

Author(s): Grigoris Panotopoulos and Ángel Rincón
We analyze in detail the propagation of a minimally coupled massless scalar field in the gravitational background of a four-dimensional Einstein-Born-Infeld dilaton charged black hole. We obtain analytical expressions for the absorption cross section as well as the decay rate for the scalar field in...
[Phys. Rev. D 96, 025009] Published Fri Jul 14, 2017



Twinlike models for kinks, vortices, and monopoles

2017-07-14T10:00:00-04:00

Author(s): D. Bazeia, M. A. Marques, and R. Menezes
This work deals with twinlike models that support topological structures such as kinks, vortices, and monopoles. We investigate the equations of motion and develop the first order framework to show how to build distinct models with the same solution and energy density, as required to make them twinl...
[Phys. Rev. D 96, 025010] Published Fri Jul 14, 2017



Parity anomaly in four dimensions

2017-07-14T10:00:00-04:00

Author(s): M. Kurkov and D. Vassilevich
In an analogy to the odd-dimensional case we define the parity anomaly as the part of the one-loop effective action for fermions associated with spectral asymmetry of the Dirac operator. This quantity is computed directly on four-dimensional manifolds with a boundary and related to the Chern-Simons ...
[Phys. Rev. D 96, 025011] Published Fri Jul 14, 2017



Eigenvalue dynamics for multimatrix models

2017-07-14T10:00:00-04:00

Author(s): Robert de Mello Koch, David Gossman, Lwazi Nkumane, and Laila Tribelhorn
By performing explicit computations of correlation functions, we find evidence that there is a sector of the two matrix model defined by the SU(2) sector of N=4 super Yang-Mills theory that can be reduced to eigenvalue dynamics. There is an interesting generalization of the usual Van der Monde deter...
[Phys. Rev. D 96, 026011] Published Fri Jul 14, 2017



Theoretical description of the decays Λ_{b}→Λ^{(*)}(1/2^{±},3/2^{±})+J/ψ

2017-07-13T10:00:00-04:00

Author(s): Thomas Gutsche, Mikhail A. Ivanov, Jürgen G. Körner, Valery E. Lyubovitskij, Vladimir V. Lyubushkin, and Pietro Santorelli
We calculate the invariant and helicity amplitudes for the transitions Λ_{b}→Λ^{(*)}(J^{P})+J/ψ, where the Λ^{(*)}(J^{P}) are Λ(sud)-type ground and excited states with J^{P} quantum numbers J^{P}=1/2^{±}, 3/2^{±}. The calculations are performed in the framework of a covariant confined quark model p...
[Phys. Rev. D 96, 013003] Published Thu Jul 13, 2017



Topology in the SU(N_{f}) chiral symmetry restored phase of unquenched QCD and axion cosmology. II.

2017-07-13T10:00:00-04:00

Author(s): Vicente Azcoiti
We investigate the physical consequences of the survival of the effects of the U(1)_{A} anomaly in the chiral symmetric phase of QCD, and show that the free energy density is a singular function of the quark mass m, in the chiral limit, and that the σ and π[over ¯] susceptibilities diverge in this l...
[Phys. Rev. D 96, 014505] Published Thu Jul 13, 2017



A_{4}

2017-07-13T10:00:00-04:00

Author(s): Biswajit Karmakar and Arunansu Sil
We provide an A_{4}-based flavor symmetric scenario to accommodate the inverse seesaw mechanism for explaining light neutrino masses and mixing. We find that the lepton mixing, in particular, the tribimaximal mixing pattern and its deviation through nonzero θ_{13}, is originated solely from the flav...
[Phys. Rev. D 96, 015007] Published Thu Jul 13, 2017



Operators up to dimension seven in standard model effective field theory extended with sterile neutrinos

2017-07-13T10:00:00-04:00

Author(s): Yi Liao and Xiao-Dong Ma
We revisit the effective field theory of the standard model that is extended with sterile neutrinos, N. We examine the basis of complete and independent effective operators involving N up to mass dimension seven (dim-7). By employing equations of motion, integration by parts, and Fierz and group ide...
[Phys. Rev. D 96, 015012] Published Thu Jul 13, 2017



Axion detection via topological Casimir effect

2017-07-13T10:00:00-04:00

Author(s): ChunJun Cao and Ariel Zhitnitsky
We propose a new table-top experimental configuration for the direct detection of dark matter QCD axions in the traditional open mass window 10^{−6}  eV≲m_{a}≲10^{−2}  eV using nonperturbative effects in a system with nontrivial spatial topology. Different from most experimental setups found in lite...
[Phys. Rev. D 96, 015013] Published Thu Jul 13, 2017



Common origin of nonzero θ_{13} and dark matter in an S_{4} flavor symmetric model with inverse seesaw mechanism

2017-07-13T10:00:00-04:00

Author(s): Ananya Mukherjee, Debasish Borah, and Mrinal Kumar Das
We study an inverse seesaw model of neutrino mass within the framework of S_{4} flavor symmetry from the requirement of generating nonzero reactor mixing angle θ_{13} along with correct dark matter relic abundance. The leading order S_{4} model gives rise to tribimaximal-type leptonic mixing, result...
[Phys. Rev. D 96, 015014] Published Thu Jul 13, 2017



Axionlike particle assisted strongly interacting massive particle

2017-07-13T10:00:00-04:00

Author(s): Ayuki Kamada, Hyungjin Kim, and Toyokazu Sekiguchi
We propose a new realization of strongly interacting massive particles (SIMPs) as self-interacting dark matter, where SIMPs couple to the standard model (SM) sector through an axionlike particle. Our model overcomes major obstacles accompanying the original SIMP model, such as a missing mechanism of...
[Phys. Rev. D 96, 016007] Published Thu Jul 13, 2017



Multi-spatial-mode effects in squeezed-light-enhanced interferometric gravitational wave detectors

2017-07-13T10:00:00-04:00

Author(s): Daniel Töyrä, Daniel D. Brown, McKenna Davis, Shicong Song, Alex Wormald, Jan Harms, Haixing Miao, and Andreas Freise
Proposed near-future upgrades of the current advanced interferometric gravitational wave detectors include the usage of frequency dependent squeezed light to reduce the current sensitivity-limiting quantum noise. We quantify and describe the degradation effects that spatial mode-mismatches between o...
[Phys. Rev. D 96, 022006] Published Thu Jul 13, 2017



Lyth bound, eternal inflation, and future cosmological missions

2017-07-13T10:00:00-04:00

Author(s): Alessandro Di Marco
In this paper we provide a new expression for the variation of the inflaton field Δϕ during the horizon crossing epoch in the context of single field slow roll inflationary models. Such an expression represents a generalization of the well-known Lyth bound. We also explore the consequences of a dete...
[Phys. Rev. D 96, 023511] Published Thu Jul 13, 2017