Preview: Recent Articles in Phys. Rev. D
Recent Articles in Phys. Rev. D
Recent articles in Physical Review D
Published: 2017-02-24T15:13:29-05:00
Consistent higher derivative gravitational theories with stable de Sitter and anti–de Sitter backgrounds
2017-02-24T10:00:00-05:00
Author(s): Tirthabir Biswas, Alexey S. Koshelev, and Anupam Mazumdar
In this paper we provide the criteria for any generally covariant, parity preserving, and torsion-free theory of gravity to possess a stable de Sitter (dS) or anti–de Sitter (AdS) background. By stability we mean the absence of tachyonic or ghostlike states in the perturbative spectrum that can lead…
[Phys. Rev. D 95, 043533] Published Fri Feb 24, 2017
Cosmic microwave background limits on accreting primordial black holes
2017-02-24T10:00:00-05:00
Author(s): Yacine Ali-Haïmoud and Marc Kamionkowski
The LIGO observation of black hole merger has revivified interest in the idea whether primordial black holes might comprise some or all of the dark matter. The authors scrutinize the impact of primordial black holes on the CMB, analytically calculating spherical accretion onto black holes. The paper provides stringent constraints on models purporting to connect dark matter to primordial black holes.
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[Phys. Rev. D 95, 043534] Published Fri Feb 24, 2017
Phenomenology of baryon acoustic oscillation evolution from Lagrangian to Eulerian space
2017-02-24T10:00:00-05:00
Author(s): Tobias Baldauf and Vincent Desjacques
The baryon acoustic oscillation (BAO) feature provides an important distance scale for the measurement of the expansion history of the Universe. Theoretical models of the BAO in the distribution of biased tracers of the large-scale structure usually rely on an initially linear BAO. With aid of N-bod…
[Phys. Rev. D 95, 043535] Published Fri Feb 24, 2017
Wilson loop in light-front quantization
2017-02-24T10:00:00-05:00
Author(s): H. Reinhardt
Using Dirac’s method for the quantization of constrained systems QED is canonically quantized in the front form in a gauge which is the light-front analog of the Weyl gauge. From the obtained vacuum wave functional the spatial Wilson loop is calculated. The result known from the canonical instant-fo…
[Phys. Rev. D 95, 045015] Published Fri Feb 24, 2017
Precision theoretical analysis of neutron radiative beta decay
2017-02-23T10:00:00-05:00
Author(s): A. N. Ivanov, R. Höllwieser, N. I. Troitskaya, M. Wellenzohn, and Ya. A. Berdnikov
In the Standard Model of electroweak interactions and in the tree approximation we calculate the rate and branching ratio of the neutron radiative β^{−} decay with one real photon emission by taking into account the contributions of the weak magnetism and proton recoil to order 1/m_{p} of the large …
[Phys. Rev. D 95, 033007] Published Thu Feb 23, 2017
Linde problem in Yang-Mills theory compactified on R^{2} ×T^{2}
2017-02-23T10:00:00-05:00
Author(s): Eduardo S. Fraga, Daniel Kroff, and Jorge Noronha
We investigate the perturbative expansion in SU(3) Yang-Mills theory compactified on R^{2}×T^{2} where the compact space is a torus T^{2}=S_{β}^{1}×S_{L}^{1}, with S_{β}^{1} being a thermal circle with period β=1/T (T is the temperature) while S_{L}^{1} is a circle with finite length L=1/M, where M …
[Phys. Rev. D 95, 034031] Published Thu Feb 23, 2017
Drell-Yan hadron tensor: Contour gauge and gluon propagator
2017-02-23T10:00:00-05:00
Author(s): I. V. Anikin, I. O. Cherednikov, and O. V. Teryaev
We consider the gauge invariant Drell-Yan hadron tensor which includes the standard and nonstandard diagram contributions. The nonstandard diagram contribution appeared owing to the complexity of the twist three B^{V}(x_{1},x_{2})-function where the gluon pole manifests. We use the contour gauge con…
[Phys. Rev. D 95, 034032] Published Thu Feb 23, 2017
Measuring the breaking of lepton flavor universality in B→K^{*} ℓ^{+} ℓ^{−}
2017-02-23T10:00:00-05:00
Author(s): Nicola Serra, Rafael Silva Coutinho, and Danny van Dyk
We propose measurements of weighted differences of the angular observables in the rare decays B→K^{*}ℓ^{+}ℓ^{−}. The proposed observables are very sensitive to the difference between the Wilson coefficients C_{9}^{(e)} and C_{9}^{(μ)} for decays into electrons and muons, respectively. At the same ti…
[Phys. Rev. D 95, 035029] Published Thu Feb 23, 2017
Einstein-Yang-Mills-Dirac systems from the discretized Kaluza-Klein theory
2017-02-23T10:00:00-05:00
Author(s): Nguyen Ai Viet, Nguyen Van Dat, Nguyen Suan Han, and Kameshwar C. Wali
A unified theory of the non-Abelian gauge interactions with gravity in the framework of a discretized Kaluza-Klein theory is constructed with a modified Dirac operator and wedge product. All the couplings of chiral spinors to the non-Abelian gauge fields emerge naturally as components of the couplin…
[Phys. Rev. D 95, 035030] Published Thu Feb 23, 2017
Sparticles in motion: Analyzing compressed SUSY scenarios with a new method of event reconstruction
2017-02-23T10:00:00-05:00
Author(s): Paul Jackson, Christopher Rogan, and Marco Santoni
The observation of light superpartners from a supersymmetric extension to the Standard Model is an intensely sought-after experimental outcome, providing an explanation for the stabilization of the electroweak scale and indicating the existence of new particles which could be consistent with dark ma…
[Phys. Rev. D 95, 035031] Published Thu Feb 23, 2017
Matrix element method at next-to-leading order for arbitrary jet algorithms
2017-02-23T10:00:00-05:00
Author(s): Robin Baumeister and Stefan Weinzierl
The matrix element method usually employs leading-order matrix elements. We discuss the generalization towards higher orders in perturbation theory and show how the matrix element method can be used at next-to-leading order for arbitrary infrared-safe jet algorithms. We discuss three variants at nex…
[Phys. Rev. D 95, 036019] Published Thu Feb 23, 2017
In-medium spectral functions of vector- and axial-vector mesons from the functional renormalization group
2017-02-23T10:00:00-05:00
Author(s): Christopher Jung, Fabian Rennecke, Ralf-Arno Tripolt, Lorenz von Smekal, and Jochen Wambach
In this work, we present the first results on vector- and axial-vector meson spectral functions as obtained by applying the nonperturbative functional renormalization group approach to an effective low-energy theory motivated by the gauged linear sigma model. By using a recently proposed analytic co…
[Phys. Rev. D 95, 036020] Published Thu Feb 23, 2017
Searches for continuous gravitational waves from Scorpius X-1 and XTE J1751-305 in LIGO’s sixth science run
2017-02-23T10:00:00-05:00
Author(s): G. D. Meadors, E. Goetz, K. Riles, T. Creighton, and F. Robinet
Scorpius X-1 (Sco X-1) and x-ray transient XTE J1751-305 are low-mass x-ray binaries (LMXBs) that may emit continuous gravitational waves detectable in the band of ground-based interferometric observatories. Neutron stars in LMXBs could reach a torque-balance steady-state equilibrium in which angula…
[Phys. Rev. D 95, 042005] Published Thu Feb 23, 2017
Anisotropies in the gravitational wave background as a probe of the cosmic string network
2017-02-23T10:00:00-05:00
Author(s): Sachiko Kuroyanagi, Keitaro Takahashi, Naoyuki Yonemaru, and Hiroki Kumamoto
Pulsar timing arrays are powerful tools to test the existence of cosmic strings by searching for the gravitational wave (GW) background. The amplitude of the background connects to information on cosmic strings such as the tension and string network properties. In addition, one may be able to extrac…
[Phys. Rev. D 95, 043531] Published Thu Feb 23, 2017
Using inpainting to construct accurate cut-sky CMB estimators
2017-02-23T10:00:00-05:00
Author(s): H. F. Gruetjen, J. R. Fergusson, M. Liguori, and E. P. S. Shellard
The direct evaluation of manifestly optimal, cut-sky cosmic microwave background (CMB) power spectrum and bispectrum estimators is numerically very costly, due to the presence of inverse-covariance filtering operations. This justifies the investigation of alternative approaches. In this work, we mos…
[Phys. Rev. D 95, 043532] Published Thu Feb 23, 2017
Dark matter in modified gravity?
2017-02-23T10:00:00-05:00
Author(s): Taishi Katsuragawa and Shinya Matsuzaki
We explore a new horizon of modified gravity from the viewpoint of particle physics. As a concrete example, we take the F(R) gravity to raise a question: can a scalar particle (“scalaron”) derived from the F(R) gravity be a dark matter candidate? We place the limit on the parameter in a class of F(R…
[Phys. Rev. D 95, 044040] Published Thu Feb 23, 2017
Nonlinear conductivity of a holographic superconductor under constant electric field
2017-02-23T10:00:00-05:00
Author(s): Hua Bi Zeng, Yu Tian, Zheyong Fan, and Chiang-Mei Chen
The dynamics of a two-dimensional superconductor under a constant electric field E is studied by using the gauge-gravity correspondence. The pair breaking current induced by E first increases to a peak value and then decreases to a constant value at late times, where the superconducting gap goes to …
[Phys. Rev. D 95, 046014] Published Thu Feb 23, 2017
Strong coupling from hadronic τ decays: A critical appraisal
2017-02-22T10:00:00-05:00
Author(s): Diogo Boito, Maarten Golterman, Kim Maltman, and Santiago Peris
Several different analysis methods have been developed to determine the strong coupling via finite-energy sum-rule analyses of hadronic τ decay data. While most methods agree on the existence of the well-known ambiguity in the choice of a resummation scheme due to the slow convergence of QCD perturb…
[Phys. Rev. D 95, 034024] Published Wed Feb 22, 2017
Quark correlations in the color glass condensate: Pauli blocking and the ridge
2017-02-22T10:00:00-05:00
Author(s): Tolga Altinoluk, Néstor Armesto, Guillaume Beuf, Alex Kovner, and Michael Lublinsky
We consider, for the first time, correlations between quarks produced in p-A collisions in the framework of the color glass condensate. We find a quark-quark ridge that shows a dip at Δη∼2 relative to the gluon-gluon ridge. The origin of this dip is the short-range (in rapidity) Pauli blocking exper…
[Phys. Rev. D 95, 034025] Published Wed Feb 22, 2017
Charmonium spectrum and electromagnetic transitions with higher multipole contributions
2017-02-22T10:00:00-05:00
Author(s): Wei-Jun Deng, Hui Liu, Long-Cheng Gui, and Xian-Hui Zhong
The charmonium spectrum is calculated with two nonrelativistic quark models, the linear potential model, and the screened potential model. Using the obtained wave functions, we evaluate the electromagnetic transitions of charmonium states up to 4S multiplet. The higher multipole contributions are in…
[Phys. Rev. D 95, 034026] Published Wed Feb 22, 2017
Towards semi-inclusive deep inelastic scattering at next-to-next-to-leading order
2017-02-22T10:00:00-05:00
Author(s): Daniele Anderle, Daniel de Florian, and Yamila Rotstein Habarnau
In this paper, we compute the first set of O(α_{s}^{2}) corrections to semi-inclusive deep inelastic scattering structure functions. We start by studying the impact of the contribution of the partonic subprocesses that open at this order for the longitudinal structure function. We perform the full c…
[Phys. Rev. D 95, 034027] Published Wed Feb 22, 2017
New dynamic critical phenomena in nuclear and quark superfluids
2017-02-22T10:00:00-05:00
Author(s): Noriyuki Sogabe and Naoki Yamamoto
We study the dynamic critical phenomena near the possible high-density QCD critical point inside the superfluid phase of nuclear and quark matter. We find that this critical point belongs to a new dynamic universality class beyond the conventional classification by Hohenberg and Halperin. We show th…
[Phys. Rev. D 95, 034028] Published Wed Feb 22, 2017
Double parton scattering in pair production of J/ψ mesons at the LHC revisited
2017-02-22T10:00:00-05:00
Author(s): Christoph Borschensky and Anna Kulesza
Double parton scattering (DPS) is studied for the example of J/ψ pair production in the LHCb and ATLAS experiments of the Large Hadron Collider (LHC) at center-of-mass energies of sqrt[S]=7, 8, and 13 TeV. We report theoretical predictions delivered to the LHCb and ATLAS Collaborations adjusted for …
[Phys. Rev. D 95, 034029] Published Wed Feb 22, 2017
Quark and gluon form factors to four-loop order in QCD: The N_{f}^{3} contributions
2017-02-22T10:00:00-05:00
Author(s): Andreas von Manteuffel and Robert M. Schabinger
We calculate the four-loop massless QCD corrections with three closed quark lines to quark and gluon form factors. We apply a novel integration by parts algorithm based on modular arithmetic and compute all relevant master integrals for arbitrary values of the space-time dimension. This is the first…
[Phys. Rev. D 95, 034030] Published Wed Feb 22, 2017
Finite-volume QED corrections to decay amplitudes in lattice QCD
2017-02-22T10:00:00-05:00
Author(s): V. Lubicz, G. Martinelli, C. T. Sachrajda, F. Sanfilippo, S. Simula, and N. Tantalo
We demonstrate that the leading and next-to-leading finite-volume effects in the evaluation of leptonic decay widths of pseudoscalar mesons at O(α) are universal; i.e. they are independent of the structure of the meson. This is analogous to a similar result for the spectrum but with some fundamental…
[Phys. Rev. D 95, 034504] Published Wed Feb 22, 2017
LHC multijet events as a probe for anomalous dimension-six gluon interactions
2017-02-22T10:00:00-05:00
Author(s): Frank Krauss, Silvan Kuttimalai, and Tilman Plehn
Higher-dimensional multigluon interactions affect essentially all effective Lagrangian analyses at the LHC. We show that, contrary to common lore, such operators are best constrained in multijet production. Our limit on the corresponding new physics scale in the multi-TeV range exceeds the typical r…
[Phys. Rev. D 95, 035024] Published Wed Feb 22, 2017
Maximizing the significance in Higgs boson pair analyses
2017-02-22T10:00:00-05:00
Author(s): Felix Kling, Tilman Plehn, and Peter Schichtel
We study Higgs pair production with a subsequent decay to a pair of photons and a pair of bottoms at the LHC. We use the log-likelihood ratio to identify the kinematic regions which either allow us to separate the di-Higgs signal from backgrounds or to determine the Higgs self-coupling. We find that…
[Phys. Rev. D 95, 035026] Published Wed Feb 22, 2017
Explaining the R_{K} and R_{D^{(*)} } anomalies with vector leptoquarks
2017-02-22T10:00:00-05:00
Author(s): Suchismita Sahoo, Rukmani Mohanta, and Anjan K. Giri
Recently, the B factories BABAR and Belle as well as the LHCb experiment have reported several anomalies in the semileptonic B meson decays, such as the R_{K} and R_{D^{(*)}} etc. We investigate these deviations by considering the vector leptoquarks relevant for both b→sl^{+}l^{−} and b→clν[over ¯]_…
[Phys. Rev. D 95, 035027] Published Wed Feb 22, 2017
Nonthermal fixed points in quantum field theory beyond the weak-coupling limit
2017-02-22T10:00:00-05:00
Author(s): Jürgen Berges and Benjamin Wallisch
The approach to equilibrium from systems far from it is a subject of great interest in a wide variety of problems. The authors analyze a scalar field theory with a large number of components to study how this happens not only for weak, but also for moderate coupling, with distributions approaching a universal transient behavior.
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[Phys. Rev. D 95, 036016] Published Wed Feb 22, 2017
On-shell parameter fixing in the quark-meson model
2017-02-22T10:00:00-05:00
Author(s): Prabal Adhikari, Jens O. Andersen, and Patrick Kneschke
The quark-meson model is often used as an effective low-energy model for QCD to study the chiral transition at finite temperature T and baryon chemical potential μ_{B}. The parameters in the quark-meson model can be found by expressing them in terms of the sigma mass m_{σ}, the pion mass m_{π}, the …
[Phys. Rev. D 95, 036017] Published Wed Feb 22, 2017
Electrical conductivity of hadronic matter from different possible mesonic and baryonic loops
2017-02-22T10:00:00-05:00
Author(s): Sabyasachi Ghosh
Electromagnetic current-current correlators in pionic and nucleonic medium have been evaluated in the static limit to obtain electrical conductivities for pion and nucleon components, respectively, where the former decreases and the latter increases with the variation of temperature T and baryon che…
[Phys. Rev. D 95, 036018] Published Wed Feb 22, 2017
Dark matter capture, subdominant WIMPs, and neutrino observatories
2017-02-22T10:00:00-05:00
Author(s): Sebastian Baum, Luca Visinelli, Katherine Freese, and Patrick Stengel
Weakly interacting massive particles (WIMPs), which are among the best motivated dark matter (DM) candidates, could make up all or only a fraction of the total DM budget. We consider a scenario in which WIMPs are a subdominant DM component; such a scenario would affect both current direct and indire…
[Phys. Rev. D 95, 043007] Published Wed Feb 22, 2017
Testing parity-violating physics from cosmic rotation power reconstruction
2017-02-22T10:00:00-05:00
Author(s): Toshiya Namikawa
We study the reconstruction of the cosmic rotation power spectrum produced by parity-violating physics, with an eye to ongoing and near future cosmic microwave background (CMB) experiments such as BICEP Array, CMBS4, LiteBIRD and Simons Observatory. In addition to the inflationary gravitational wave…
[Phys. Rev. D 95, 043523] Published Wed Feb 22, 2017
Production of heavy sterile neutrinos from vector boson decay at electroweak temperatures
2017-02-22T10:00:00-05:00
Author(s): Louis Lello, Daniel Boyanovsky, and Robert D. Pisarski
In the standard model extended with a seesaw mass matrix, we study the production of sterile neutrinos from the decay of vector bosons at temperatures near the masses of the electroweak bosons. We derive a general quantum kinetic equation for the production of sterile neutrinos and their effective m…
[Phys. Rev. D 95, 043524] Published Wed Feb 22, 2017
Dynamics and chaos in the unified scalar field cosmology. II. System in a finite box
2017-02-22T10:00:00-05:00
Author(s): Giovanni Acquaviva and Georgios Lukes-Gerakopoulos
We revisit the global dynamics of unified dark matter cosmological models and analyze it in a new dynamical system setting. In particular, by defining a suitable set of variables we obtain a bounded variable space, a feature that allows a better control of the critical elements of the system. First,…
[Phys. Rev. D 95, 043525] Published Wed Feb 22, 2017
Dynamical Dark Matter from strongly-coupled dark sectors
2017-02-22T10:00:00-05:00
Author(s): Keith R. Dienes, Fei Huang, Shufang Su, and Brooks Thomas
Dynamical Dark Matter (DDM) is an alternative framework for dark-matter physics in which the dark sector comprises a vast ensemble of particle species whose Standard-Model decay widths are balanced against their cosmological abundances. Previous studies of this framework have focused on a particular…
[Phys. Rev. D 95, 043526] Published Wed Feb 22, 2017
String theory and the dark glueball problem
2017-02-22T10:00:00-05:00
Author(s): James Halverson, Brent D. Nelson, and Fabian Ruehle
We study cosmological constraints on dark pure Yang-Mills sectors. Dark glueballs are overproduced for large regions of ultraviolet parameter space. The problem may be alleviated in two ways: via a large preferential reheating into the visible sector, motivating certain inflation or modulus decay mo…
[Phys. Rev. D 95, 043527] Published Wed Feb 22, 2017
Analytic halo approach to the bispectrum of galaxies in redshift space
2017-02-22T10:00:00-05:00
Author(s): Kazuhiro Yamamoto, Yue Nan, and Chiaki Hikage
We present an analytic formula for the galaxy bispectrum in redshift space on the basis of the halo approach description with the halo occupation distribution of central galaxies and satellite galaxies. This work is an extension of a previous work on the galaxy power spectrum, which illuminated the …
[Phys. Rev. D 95, 043528] Published Wed Feb 22, 2017
Separate universes beyond general relativity
2017-02-22T10:00:00-05:00
Author(s): Wayne Hu and Austin Joyce
We establish purely geometric or metric-based criteria for the validity of the separate universe ansatz, under which the evolution of small-scale observables in a long-wavelength perturbation is indistinguishable from a separate Friedmann-Robertson-Walker cosmology in their angle average. In order t…
[Phys. Rev. D 95, 043529] Published Wed Feb 22, 2017
Constraining some Horndeski gravity theories
2017-02-22T10:00:00-05:00
Author(s): Sourav Bhattacharya and Sumanta Chakraborty
We discuss two spherically symmetric solutions admitted by the Horndeski (or scalar-tensor) theory in the context of Solar System and astrophysical scenarios. One of these solutions is derived for Einstein-Gauss-Bonnet gravity, while the other originates from the coupling of the Gauss-Bonnet invaria…
[Phys. Rev. D 95, 044037] Published Wed Feb 22, 2017
Breaking the Vainshtein screening in clusters of galaxies
2017-02-22T10:00:00-05:00
Author(s): Vincenzo Salzano, David F. Mota, Salvatore Capozziello, and Megan Donahue
In this work we will test an alternative model of gravity belonging to the large family of Galileon models. It is characterized by an intrinsic breaking of the Vainshtein mechanism inside large astrophysical objects, thus having possibly detectable observational signatures. We will compare theoretic…
[Phys. Rev. D 95, 044038] Published Wed Feb 22, 2017
Quantum complexity and negative curvature
2017-02-22T10:00:00-05:00
Author(s): Adam R. Brown, Leonard Susskind, and Ying Zhao
As time passes, once simple quantum states tend to become more complex. For strongly coupled k-local Hamiltonians, this growth of computational complexity has been conjectured to follow a distinctive and universal pattern. In this paper we show that the same pattern is exhibited by a much simpler sy…
[Phys. Rev. D 95, 045010] Published Wed Feb 22, 2017
Nonperturbative aspects of Euclidean Yang-Mills theories in linear covariant gauges: Nielsen identities and a BRST-invariant two-point correlation function
2017-02-22T10:00:00-05:00
Author(s): M. A. L. Capri, D. Dudal, A. D. Pereira, D. Fiorentini, M. S. Guimaraes, B. W. Mintz, L. F. Palhares, and S. P. Sorella
In order to construct a gauge-invariant two-point function in a Yang-Mills theory, we propose the use of the all-order gauge-invariant transverse configurations A^{h}. Such configurations can be obtained through the minimization of the functional A_{min}^{2} along the gauge orbit within the BRST-inv…
[Phys. Rev. D 95, 045011] Published Wed Feb 22, 2017
Constrained field theories on spherically symmetric spacetimes with horizons
2017-02-22T10:00:00-05:00
Author(s): Karan Fernandes, Amitabha Lahiri, and Suman Ghosh
We apply the Dirac-Bergmann algorithm for the analysis of constraints to gauge theories defined on spherically symmetric black hole backgrounds. We find that the constraints for a given theory are modified on such spacetimes through the presence of additional contributions from the horizon. As a con…
[Phys. Rev. D 95, 045012] Published Wed Feb 22, 2017
Yang-Mills correlators across the deconfinement phase transition
2017-02-22T10:00:00-05:00
Author(s): U. Reinosa, J. Serreau, M. Tissier, and A. Tresmontant
We compute the finite temperature ghost and gluon propagators of Yang-Mills theory in the Landau-DeWitt gauge. The background field that enters the definition of the latter is intimately related with the (gauge-invariant) Polyakov loop and serves as an equivalent order parameter for the deconfinemen…
[Phys. Rev. D 95, 045014] Published Wed Feb 22, 2017
Nonvacuum AdS cosmology and comments on gauge theory correlator
2017-02-22T10:00:00-05:00
Author(s): Soumyabrata Chatterjee, Sudipto Paul Chowdhury, Sudipta Mukherji, and Yogesh K. Srivastava
Several time dependent backgrounds, with perfect fluid matter, can be used to construct solutions of Einstein equations in the presence of a negative cosmological constant along with some matter sources. In this work we focus on the non-vacuum Kasner-AdS geometry and its solitonic generalization. To…
[Phys. Rev. D 95, 046011] Published Wed Feb 22, 2017
Two-loop gravity amplitudes from four dimensional unitarity
2017-02-22T10:00:00-05:00
Author(s): David C. Dunbar, Guy R. Jehu, and Warren B. Perkins
We compute the polylogarithmic parts of the two-loop four- and five-graviton amplitudes where the external helicities are positive and express these in a simple compact analytic form. We use these to extract the ln(μ^{2}) terms from both the four- and five-point amplitudes and show that these match …
[Phys. Rev. D 95, 046012] Published Wed Feb 22, 2017
Two-loop renormalization of quantum gravity simplified
2017-02-22T10:00:00-05:00
Author(s): Zvi Bern, Huan-Hang Chi, Lance Dixon, and Alex Edison
The coefficient of the dimensionally regularized two-loop R^{3} divergence of (nonsupersymmetric) gravity theories has recently been shown to change when nondynamical three-forms are added to the theory, or when a pseudoscalar is replaced by the antisymmetric two-form field to which it is dual. This…
[Phys. Rev. D 95, 046013] Published Wed Feb 22, 2017
Observation of B_{c}^{+} →J/ψD^{(*)} K^{(*)} decays
2017-02-21T10:00:00-05:00
Author(s): R. Aaij
et al. (LHCb Collaboration)
A search for the decays B_{c}^{+}→J/ψD^{(*)0}K^{+} and B_{c}^{+}→J/ψD^{(*)+}K^{*0} is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb^{−1}. The decays B_{c}^{+}→J/ψD^{0}K^{+} and B_{c}^{+}→J/ψD^{*0}K^{+} are observed for the first time, while f…
[Phys. Rev. D 95, 032005] Published Tue Feb 21, 2017
Effects of Z_{b} states and bottom meson loops on ϒ(4S)→ϒ(1S,2S)π^{+} π^{−} transitions
2017-02-21T10:00:00-05:00
Author(s): Yun-Hua Chen, Martin Cleven, Johanna T. Daub, Feng-Kun Guo, Christoph Hanhart, Bastian Kubis, Ulf-G. Meißner, and Bing-Song Zou
We study the dipion transitions ϒ(4S)→ϒ(nS)π^{+}π^{−}(n=1,2). In particular, we consider the effects of the two intermediate bottomoniumlike exotic states Z_{b}(10610) and Z_{b}(10650) as well as bottom meson loops. The strong pion-pion final-state interactions, especially including channel coupling…
[Phys. Rev. D 95, 034022] Published Tue Feb 21, 2017
Revisiting the B^{0} →π^{0} π^{0} decays in the perturbative QCD approach
2017-02-21T10:00:00-05:00
Author(s): Yun-Feng Li and Xian-Qiao Yu
We recalculate the branching ratio and CP asymmetry for B[over ¯]^{0}(B^{0})→π^{0}π^{0} decays in the perturbative QCD approach. In this approach, we consider all the possible diagrams including nonfactorizable contributions and annihilation contributions. We obtain Br(B[over ¯]^{0}(B^{0})→π^{0}π^{0…
[Phys. Rev. D 95, 034023] Published Tue Feb 21, 2017
Local factorization of the fermion determinant in lattice QCD
2017-02-21T10:00:00-05:00
Author(s): Marco Cè, Leonardo Giusti, and Stefan Schaefer
We introduce a factorization of the fermion determinant in lattice QCD with Wilson-type fermions that leads to a bosonic action which is local in the block fields. The interaction among gauge fields on distant blocks is mediated by multiboson fields located on the boundaries of the blocks. The resul…
[Phys. Rev. D 95, 034503] Published Tue Feb 21, 2017
Dark matter candidates in the constrained exceptional supersymmetric standard model
2017-02-21T10:00:00-05:00
Author(s): P. Athron, A. W. Thomas, S. J. Underwood, and M. J. White
The exceptional supersymmetric standard model is a low energy alternative to the minimal supersymmetric standard model (MSSM) with an extra U(1) gauge symmetry and three generations of matter filling complete 27-plet representations of E_{6}. This provides both new D and F term contributions that ra…
[Phys. Rev. D 95, 035023] Published Tue Feb 21, 2017
Z^{′} -portal right-handed neutrino dark matter in the minimal U(1)_{X} extended Standard Model
2017-02-21T10:00:00-05:00
Author(s): Nobuchika Okada and Satomi Okada
We consider a concise dark matter (DM) scenario in the context of a nonexotic U(1) extension of the Standard Model (SM), where a new U(1)_{X} gauge symmetry is introduced along with three generations of right-handed neutrinos (RHNs) and a SM gauge singlet Higgs field. The model is a generalization o…
[Phys. Rev. D 95, 035025] Published Tue Feb 21, 2017
Heavy quarkonium moving in hot and dense deconfined nuclear matter
2017-02-21T10:00:00-05:00
Author(s): Lata Thakur, Najmul Haque, and Hiranmaya Mishra
We study the behavior of the complex potential between a heavy quark and its antiquark, which are in relative motion with respect to a hot and dense medium. The heavy quark-antiquark complex potential is obtained by correcting both the Coulombic and the linear terms in the Cornell potential through …
[Phys. Rev. D 95, 036014] Published Tue Feb 21, 2017
Magnetic moment of the X_{Q} state with J^{PC} =1^{+±} in light cone QCD sum rules
2017-02-21T10:00:00-05:00
Author(s): A. K. Agamaliev, T. M. Aliev, and M. Savcı
The magnetic moments of the recently observed resonance X_{b}(5568) by D0 Collaboration and its partner with charm quark are calculated in the framework of the light cone QCD sum rules, by assuming that these resonances are represented as tetraquark states with quantum numbers J^{PC}=1^{+±}. The mag…
[Phys. Rev. D 95, 036015] Published Tue Feb 21, 2017
Contribution of scalars to N=4 supersymmetric Yang-Mills amplitudes
2017-02-21T10:00:00-05:00
Author(s): Alfredo Bonini, Davide Fioravanti, Simone Piscaglia, and Marco Rossi
We analyze the contribution of 2n scalars to the operator product expansion series for Maximum Helicity Violating (MHV) gluon scattering amplitudes/polygonal Wilson loops in planar N=4 supersymmetric Yang-Mills (SYM). Hence, we sum up on 2n for large coupling λ: the logarithm of the amplitude is pro…
[Phys. Rev. D 95, 041902(R)] Published Tue Feb 21, 2017
Helicity coherence in binary neutron star mergers and nonlinear feedback
2017-02-21T10:00:00-05:00
Author(s): Amélie Chatelain and Cristina Volpe
Neutrino flavor conversion studies based on astrophysical environments usually implement neutrino mixings, neutrino interactions with matter, and neutrino self-interactions. In anisotropic media, the most general mean-field treatment includes neutrino mass contributions as well, which introduce a co…
[Phys. Rev. D 95, 043005] Published Tue Feb 21, 2017
Neutrinos from type Ia supernovae: The gravitationally confined detonation scenario
2017-02-21T10:00:00-05:00
Author(s): Warren P. Wright, James P. Kneller, Sebastian T. Ohlmann, Friedrich K. Röpke, Kate Scholberg, and Ivo R. Seitenzahl
Calculations indicate that neutrino emission from a supernova could be detected on Earth, possibly revealing how the star explodes.
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[Phys. Rev. D 95, 043006] Published Tue Feb 21, 2017
Quantum quenches during inflation
2017-02-21T10:00:00-05:00
Author(s): Pedro Carrilho and Raquel H. Ribeiro
We propose a new technique to study fast transitions during inflation, by studying the dynamics of quantum quenches in an O(N) scalar field theory in de Sitter spacetime. We compute the time evolution of the system using a nonperturbative large-N limit approach. We derive the self-consistent mass eq…
[Phys. Rev. D 95, 043516] Published Tue Feb 21, 2017
Calibrating cluster number counts with CMB lensing
2017-02-21T10:00:00-05:00
Author(s): Thibaut Louis and David Alonso
CMB Stage-4 experiments aim to reduce the uncertainties on the gravitational lensing potential by an order of magnitude compared to current measurements, and to also produce a Sunyaev-Zel’dovich (SZ) cluster catalog containing ∼10^{5} objects, two orders of magnitudes higher than what is currently a…
[Phys. Rev. D 95, 043517] Published Tue Feb 21, 2017
CMB lens sample covariance and consistency relations
2017-02-21T10:00:00-05:00
Author(s): Pavel Motloch, Wayne Hu, and Aurélien Benoit-Lévy
Gravitational lensing information from the two and higher point statistics of the cosmic microwave background (CMB) temperature and polarization fields are intrinsically correlated because they are lensed by the same realization of structure between last scattering and observation. Using an analytic…
[Phys. Rev. D 95, 043518] Published Tue Feb 21, 2017
Core-halo mass relation of ultralight axion dark matter from merger history
2017-02-21T10:00:00-05:00
Author(s): Xiaolong Du, Christoph Behrens, Jens C. Niemeyer, and Bodo Schwabe
In the context of structure formation with ultralight axion dark matter, we offer an alternative explanation for the mass relation of solitonic cores and their host halos observed in numerical simulations. Our argument is based entirely on the mass gain that occurs during major mergers of binary cor…
[Phys. Rev. D 95, 043519] Published Tue Feb 21, 2017
Evidence for interacting dark energy from BOSS
2017-02-21T10:00:00-05:00
Author(s): Elisa G. M. Ferreira, Jerome Quintin, André A. Costa, E. Abdalla, and Bin Wang
The result presented by the BOSS-SDSS Collaboration measuring the baryon acoustic oscillations of the Lyman-alpha forest from high-redshift quasars indicates a 2.5σ departure from the standard Λ-cold-dark-matter model. This is the first time that the evolution of dark energy at high redshifts has be…
[Phys. Rev. D 95, 043520] Published Tue Feb 21, 2017
Unified composite scenario for inflation and dark matter in the Nambu–Jona-Lasinio model
2017-02-21T10:00:00-05:00
Author(s): Phongpichit Channuie and Chi Xiong
In this work, we propose a cosmological scenario inherently based on the effective Nambu–Jona-Lasinio (NJL) model that cosmic inflation and dark matter can be successfully described by a single framework. On the one hand, the scalar channel of the NJL model plays a role of the composite inflaton (CI…
[Phys. Rev. D 95, 043521] Published Tue Feb 21, 2017
Effect of matter structure on the gravitational waveform
2017-02-21T10:00:00-05:00
Author(s): Camille Bonvin, Chiara Caprini, Riccardo Sturani, and Nicola Tamanini
Third-generation ground-based interferometers as well as the planned space-based interferometer LISA are expected to detect a plethora of gravitational wave signals from coalescing binaries at cosmological distance. The emitted gravitational waves propagate in the expanding Universe through the inho…
[Phys. Rev. D 95, 044029] Published Tue Feb 21, 2017
Gravitational perturbations of the Higgs field
2017-02-21T10:00:00-05:00
Author(s): Franco D. Albareti, Antonio L. Maroto, and Francisco Prada
We study the possible effects of classical gravitational backgrounds on the Higgs field through the modifications induced in the one-loop effective potential and the vacuum expectation value of the energy-momentum tensor. We concentrate our study on the Higgs self-interaction contribution in a pertu…
[Phys. Rev. D 95, 044030] Published Tue Feb 21, 2017
Hybrid metric-Palatini stars
2017-02-21T10:00:00-05:00
Author(s): Bogdan Danilă, Tiberiu Harko, Francisco S. N. Lobo, and M. K. Mak
We consider the internal structure and the physical properties of specific classes of neutron, quark and Bose-Einstein condensate stars in the recently proposed hybrid metric-Palatini gravity theory, which is a combination of the metric and Palatini f(R) formalisms. It turns out that the theory is v…
[Phys. Rev. D 95, 044031] Published Tue Feb 21, 2017
Maximum mass limit of neutron stars in scalar-tensor gravity
2017-02-21T10:00:00-05:00
Author(s): Hajime Sotani and Kostas D. Kokkotas
The maximum mass limits of neutron stars in scalar-tensor gravity is discussed and compared with the limits set by general relativity. The limit is parametrized with respect to the combination of the nuclear saturation parameters and the maximum sound velocity in the core. It is shown that, for smal…
[Phys. Rev. D 95, 044032] Published Tue Feb 21, 2017
Thermodynamics of scale factor dual universes
2017-02-21T10:00:00-05:00
Author(s): G. M. Sotkov, A. L. Alves Lima, and U. Camara da Silva
The thermodynamical aspects of the conformal time scale factor duality (CSFD) of cosmological models within Einstein gravity are investigated. We derive the CSFD transformations of the thermodynamical quantities describing the thermal evolution of the matter fluid and of the apparent horizon. The th…
[Phys. Rev. D 95, 044033] Published Tue Feb 21, 2017
Gravitational rotation of polarization: Clarifying the gauge dependence and prediction for a double pulsar
2017-02-21T10:00:00-05:00
Author(s): Ue-Li Pen, Xin Wang, and I-Sheng Yang
From the basic concepts of general relativity, we investigate the rotation of the polarization angle by a moving gravitational lens. In particular, we clarify the existing confusion in the literature by showing and explaining why such rotation must explicitly depend on the relative motion between th…
[Phys. Rev. D 95, 044034] Published Tue Feb 21, 2017
Addendum to “Absorption of a massive scalar field by a charged black hole”
2017-02-21T10:00:00-05:00
Author(s): Carolina L. Benone, Ednilton S. de Oliveira, Sam R. Dolan, and Luís C. B. Crispino
In [1] we studied the absorption cross section of a scalar field of mass m impinging on a static black hole of mass M and charge Q. We presented numerical results using the partial-wave method, and analytical results in the high- and low-frequency limit. Our low-frequency approximation was only vali…
[Phys. Rev. D 95, 044035] Published Tue Feb 21, 2017
Leading and subleading UV divergences in scattering amplitudes for D=8 N=1 SYM theory in all loops
2017-02-21T10:00:00-05:00
Author(s): D. I. Kazakov and D. E. Vlasenko
We consider the leading and subleading UV divergences for the four-point on-shell scattering amplitudes in D=8 N=1 supersymmetric Yang-Mills theory in the planar limit. This theory belongs to the class of maximally supersymmetric gauge theories and presumably possesses distinguished properties beyon…
[Phys. Rev. D 95, 045006] Published Tue Feb 21, 2017
Vacuum polarization throughout general subtracted black hole spacetimes
2017-02-21T10:00:00-05:00
Author(s): Mirjam Cvetič and Alejandro Satz
We compute the vacuum polarization of a massless minimally coupled scalar field in a background given by a black hole with subtracted geometry. Extending previous results for the horizon of rotating black holes with no charge, we obtain an analytical expression for the vacuum polarization that is va…
[Phys. Rev. D 95, 045007] Published Tue Feb 21, 2017
Gravitational localization of scalar zero modes in SU(5)×Z_{2} branes
2017-02-21T10:00:00-05:00
Author(s): Nelson Pantoja and Rossana Rojas
The fluctuations of five-dimensional self-gravitating non-Abelian kinks which arise from the breaking of the SU(5)×Z_{2}-symmetric theory are analyzed within the context of braneworlds. While tensor and vector sectors of these fluctuations behave like its counterparts in the standard Abelian Z_{2} k…
[Phys. Rev. D 95, 045008] Published Tue Feb 21, 2017
Unitarity and microscopic acausality in a nonlocal theory
2017-02-21T10:00:00-05:00
Author(s): Christopher D. Carone
We consider unitarity and causality in a higher-derivative theory of infinite order, where propagators fall off more quickly in the ultraviolet due to the presence of a transcendental entire function of the momentum. Like Lee-Wick theories, these field theories might provide new avenues for addressi…
[Phys. Rev. D 95, 045009] Published Tue Feb 21, 2017
Enhanced asymptotic symmetry algebra of (2+1)-dimensional flat space
2017-02-21T10:00:00-05:00
Author(s): Stéphane Detournay and Max Riegler
In this paper we present a new set of asymptotic boundary conditions for Einstein gravity in (2+1)-dimensions with a vanishing cosmological constant that are a generalization of the Barnich-Compère boundary conditions [G. Barnich and G. Compere, Classical Quantum Gravity 24, F15 (2007)]. These new b…
[Phys. Rev. D 95, 046008] Published Tue Feb 21, 2017
Thermal phase transitions of dimensionally continued AdS black holes
2017-02-21T10:00:00-05:00
Author(s): Xiao-Mei Kuang and Olivera Miskovic
We study the thermal phase transitions of charged black holes in dimensionally continued gravity in anti–de Sitter space. We find the van der Waals–like phase transition in the temperature-entropy plane of the black holes with spherical horizons in even dimensions, and there is no such phase transit…
[Phys. Rev. D 95, 046009] Published Tue Feb 21, 2017
Quantum simulation of gravitational-like waves in minisuperspace with an artificial qubit
2017-02-21T10:00:00-05:00
Author(s): Ze-Lin Zhang, Ming-Feng Chen, Huai-Zhi Wu, and Zhen-Biao Yang
On the background of the Born-Oppenheimer (adiabatic) approximation, we investigate the geometrical and topological structure in the theory of quantum gravity by using the path integral method and half-classical approximation. As we know, Berry curvature can be extracted from the linear response of …
[Phys. Rev. D 95, 046010] Published Tue Feb 21, 2017
Joint short- and long-baseline constraints on light sterile neutrinos
2017-02-17T10:00:00-05:00
Author(s): F. Capozzi, C. Giunti, M. Laveder, and A. Palazzo
Recent studies provide evidence that long-baseline (LBL) experiments are sensitive to the extra CP phases involved with light sterile neutrinos, whose existence is suggested by several anomalous short-baseline (SBL) results. We show that, within the 3+1 scheme, the combination of the existing SBL da…
[Phys. Rev. D 95, 033006] Published Fri Feb 17, 2017
How large is the contribution of excited mesons in coupled-channel effects?
2017-02-17T10:00:00-05:00
Author(s): Yu Lu, Muhammad Naeem Anwar, and Bing-Song Zou
We study the excited B mesons’ contributions to the coupled-channel effects under the framework of the ^{3}P_{0} model for the bottomonium. Contrary to what has been widely accepted, the contributions of P wave B mesons are generally the largest, and to some extent, this result is independent of the…
[Phys. Rev. D 95, 034018] Published Fri Feb 17, 2017
Photoproduction of the B_{c}^{(*)} meson at the LHeC
2017-02-17T10:00:00-05:00
Author(s): Huan-Yu Bi, Ren-You Zhang, Hua-Yong Han, Yi Jiang, and Xing-Gang Wu
We make a detailed study of the photoproduction mechanism of the doubly heavy flavored B_{c}^{(*)} meson at the purposed Large Hadron Electron Collider (LHeC) within the framework of nonrelativistic QCD. In addition to the photoproduction mechanism via the gluon-induced channel γ+g→B_{c}^{(*)}+b+c[o…
[Phys. Rev. D 95, 034019] Published Fri Feb 17, 2017
Backward charmonium production in πN collisions
2017-02-17T10:00:00-05:00
Author(s): B. Pire, K. Semenov-Tian-Shansky, and L. Szymanowski
The QCD collinear factorization framework allows one to describe exclusive backward production of a J/ψ meson in pion-nucleon collisions in terms of pion-to-nucleon transition distribution amplitudes. We calculate the scattering amplitude at the leading order in the strong coupling constant and esti…
[Phys. Rev. D 95, 034021] Published Fri Feb 17, 2017
Z boson mediated dark matter beyond the effective theory
2017-02-17T10:00:00-05:00
Author(s): John Kearney, Nicholas Orlofsky, and Aaron Pierce
Direct detection bounds are beginning to constrain a very simple model of weakly interacting dark matter—a Majorana fermion with a coupling to the Z boson. In a particularly straightforward gauge-invariant realization, this coupling is introduced via a higher-dimensional operator. While attractive i…
[Phys. Rev. D 95, 035020] Published Fri Feb 17, 2017
Unified resolution of the R(D) and R(D^{*} ) anomalies and the lepton flavor violating decay h→μτ
2017-02-17T10:00:00-05:00
Author(s): Debajyoti Choudhury, Anirban Kundu, Soumitra Nandi, and Sunando Kumar Patra
Taking advantage of the fact that the flavor of the neutrino in semileptonic B decays B→D^{(*)}τν is not known, we show how a minimal set of higher-dimensional lepton flavor violating (LFV) operators can explain the R(D^{(*)}) anomalies and, as a spin-off, can give rise to the LFV decay of the Higgs…
[Phys. Rev. D 95, 035021] Published Fri Feb 17, 2017
Rare semileptonic B→K(π)l_{i}^{−} l_{j}^{+} decay in a vector leptoquark model
2017-02-17T10:00:00-05:00
Author(s): Murugeswaran Duraisamy, Suchismita Sahoo, and Rukmani Mohanta
We investigate the consequence of vector leptoquarks on the rare semileptonic lepton flavor violating decays of the B meson which are more promising and effective channels to probe the new physics signal. We constrain the resulting new leptoquark parameter space by using the branching ratios of B_{s…
[Phys. Rev. D 95, 035022] Published Fri Feb 17, 2017
Cryogenic mechanical loss of a single-crystalline GaP coating layer for precision measurement applications
2017-02-17T10:00:00-05:00
Author(s): Peter G. Murray, Iain W. Martin, Kieran Craig, James Hough, Sheila Rowan, Riccardo Bassiri, Martin M. Fejer, James S. Harris, Brian T. Lantz, Angie C. Lin, Ashot S. Markosyan, and Roger K. Route
The first direct observations of gravitational waves have been made by the Advanced LIGO detectors. However, the quest to improve the sensitivities of these detectors remains, and epitaxially grown single-crystal coatings show considerable promise as alternatives to the ion-beam sputtered amorphous …
[Phys. Rev. D 95, 042004] Published Fri Feb 17, 2017
Can transition radiation explain the ANITA event 3985267?
2017-02-17T10:00:00-05:00
Author(s): Pavel Motloch, Jaime Alvarez-Muñiz, Paolo Privitera, and Enrique Zas
We investigate whether transition radiation from a particle shower crossing the interface between Earth and air and induced by an Earth-skimming neutrino can explain the upward event announced recently by the ANITA Collaboration. While the properties of the observed signal can in principle be explai…
[Phys. Rev. D 95, 043004] Published Fri Feb 17, 2017
Off-shell dark matter: A cosmological relic of quantum gravity
2017-02-17T10:00:00-05:00
Author(s): Mehdi Saravani and Niayesh Afshordi
We study a novel proposal for the origin of cosmological cold dark matter (CDM) which is rooted in the quantum nature of spacetime. In this model, off-shell modes of quantum fields can exist in asymptotic states as a result of spacetime nonlocality (expected in generic theories of quantum gravity) a…
[Phys. Rev. D 95, 043514] Published Fri Feb 17, 2017