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

]]>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.

[Phys. Rev. D 95, 043534] Published Fri Feb 24, 2017

]]>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

]]>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

]]>In the Standard Model of electroweak interactions and in the tree approximation we calculate the rate and branching ratio of the neutron radiative ${\beta}^{-}$ 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 proton…

[Phys. Rev. D 95, 033007] Published Thu Feb 23, 2017

]]>We investigate the perturbative expansion in $SU(3)$ Yang-Mills theory compactified on ${\mathbb{R}}^{2}\times {\mathbb{T}}^{2}$ where the compact space is a torus ${\mathbb{T}}^{2}={S}_{\beta}^{1}\times {S}_{L}^{1}$, with ${S}_{\beta}^{1}$ being a thermal circle with period $\beta =1/T$ ($T$ is the temperature) while ${S}_{L}^{1}$ is a circle with finite length $L=1/M$, where $M$ is an energy scale. A Linde-type …

[Phys. Rev. D 95, 034031] Published Thu Feb 23, 2017

]]>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 conception w…

[Phys. Rev. D 95, 034032] Published Thu Feb 23, 2017

]]>We propose measurements of weighted differences of the angular observables in the rare decays $B\to {K}^{*}{\ell}^{+}{\ell}^{-}$. The proposed observables are very sensitive to the difference between the Wilson coefficients ${\mathcal{C}}_{9}^{(e)}$ and ${\mathcal{C}}_{9}^{(\mu )}$ for decays into electrons and muons, respectively. At the same time, the charm-induced…

[Phys. Rev. D 95, 035029] Published Thu Feb 23, 2017

]]>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

]]>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

]]>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 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

]]>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

]]>We investigate the feasibility of measuring the effects of peculiar velocities in large-scale structure using the dipole of the redshift-space cross-correlation function. We combine number counts of galaxies with brightness-temperature fluctuations from 21 cm intensity mapping, demonstrating that th…

[Phys. Rev. D 95, 043530] Published Thu Feb 23, 2017

]]>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

]]>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

]]>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\dots $

[Phys. Rev. D 95, 044040] Published Thu Feb 23, 2017

]]>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

]]>Over the last few years, Planck-scale modifications to the dispersion relation of particles have been deeply studied for the possibility to formulate some phenomenology of Planckian effects in astrophysical and cosmological frameworks. There are some indications [F. Girelli, S. Liberati, and L. Sind…

[Phys. Rev. D 95, 046015] Published Thu Feb 23, 2017

]]>Several different analysis methods have been developed to determine the strong coupling via finite-energy sum-rule analyses of hadronic $\tau $ 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

]]>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 $\mathrm{\Delta}\eta \sim 2$ 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

]]>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

]]>In this paper, we compute the first set of $\mathcal{O}({\alpha}_{s}^{2})$ 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 calcula…

[Phys. Rev. D 95, 034027] Published Wed Feb 22, 2017

]]>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 (DPS) is studied for the example of $J/\psi $ 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 the fi…

[Phys. Rev. D 95, 034029] Published Wed Feb 22, 2017

]]>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

]]>We demonstrate that the leading and next-to-leading finite-volume effects in the evaluation of leptonic decay widths of pseudoscalar mesons at $O(\alpha )$ 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

]]>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

]]>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

]]>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 $b\to s{l}^{+}{l}^{-}$ and $b\to cl{\overline{\nu}}_{l}$ transitions. The lept…

[Phys. Rev. D 95, 035027] Published Wed Feb 22, 2017

]]>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.

[Phys. Rev. D 95, 036016] Published Wed Feb 22, 2017

]]>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 ${\mu}_{B}$. The parameters in the quark-meson model can be found by expressing them in terms of the sigma mass ${m}_{\sigma}$, the pion mass ${m}_{\pi}$, the constitue…

[Phys. Rev. D 95, 036017] Published Wed Feb 22, 2017

]]>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

]]>[Phys. Rev. D 95, 039905] Published Wed Feb 22, 2017

]]>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

]]>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

]]>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

]]>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 (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

]]>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

]]>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

]]>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

]]>We calculate the sensitivity to a circular polarization of an isotropic stochastic gravitational wave background (ISGWB) as a function of frequency for ground- and space-based interferometers and observations of the cosmic microwave background. The origin of a circularly polarized ISGWB may be due t…

[Phys. Rev. D 95, 044036] Published Wed Feb 22, 2017

]]>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

]]>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

]]>The pioneering discovery of gravitational waves (GWs) by Advanced LIGO has ushered us into an era of observational GW astrophysics. Compact binaries remain the primary target sources for GW observation, of which neutron star-black hole (NSBH) binaries form an important subset. GWs from NSBH sources …

[Phys. Rev. D 95, 044039] Published Wed Feb 22, 2017

]]>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

]]>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 ${A}_{\mathrm{min}}^{2}$ along the gauge orbit within the BRST-invariant fo…

[Phys. Rev. D 95, 045011] Published Wed Feb 22, 2017

]]>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

]]>This paper is focused on the functional renormalization group applied to the ${T}_{5}^{6}$ tensor model on the Abelian group $U(1)$ with closure constraint. For the first time, we derive the flow equations for the couplings and mass parameters in a suitable truncation around the marginal interactions with respe…

[Phys. Rev. D 95, 045013] Published Wed Feb 22, 2017

]]>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

]]>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

]]>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 $\mathrm{ln}({\mu}^{2})$ terms from both the four- and five-point amplitudes and show that these match the…

[Phys. Rev. D 95, 046012] Published Wed Feb 22, 2017

]]>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 ph…

[Phys. Rev. D 95, 046013] Published Wed Feb 22, 2017

]]>[Phys. Rev. D 95, 049903] Published Wed Feb 22, 2017

]]>A search for the decays ${B}_{c}^{+}\to J/\psi {D}^{(*)0}{K}^{+}$ and ${B}_{c}^{+}\to J/\psi {D}^{(*)+}{K}^{*0}$ is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of $3\text{\hspace{0.17em}}\text{\hspace{0.17em}}{\mathrm{fb}}^{-1}$. The decays ${B}_{c}^{+}\to J/\psi {D}^{0}{K}^{+}$ and ${B}_{c}^{+}\to J/\psi {D}^{*0}{K}^{+}$ are observed for the first time, while first evidence is reported for the ${B}_{c}^{+}\to J/\psi {D}^{*+}{K}^{*0}$ and…

[Phys. Rev. D 95, 032005] Published Tue Feb 21, 2017

]]>We study the dipion transitions $\mathrm{\Upsilon}(4S)\to \mathrm{\Upsilon}(nS){\pi}^{+}{\pi}^{-}(n=1,2)$. 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 to $K\overline{K}$ in t…

[Phys. Rev. D 95, 034022] Published Tue Feb 21, 2017

]]>We recalculate the branching ratio and $CP$ asymmetry for ${\overline{B}}^{0}({B}^{0})\to {\pi}^{0}{\pi}^{0}$ decays in the perturbative QCD approach. In this approach, we consider all the possible diagrams including nonfactorizable contributions and annihilation contributions. We obtain $\mathrm{Br}({\overline{B}}^{0}({B}^{0})\to {\pi}^{0}{\pi}^{0})=(1.1{7}_{-0.12}^{+0.11})\times {10}^{-6}$. Our result i…

[Phys. Rev. D 95, 034023] Published Tue Feb 21, 2017

]]>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

]]>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 raise…

[Phys. Rev. D 95, 035023] Published Tue Feb 21, 2017

]]>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 ${\mathrm{U}(1)}_{X}$ 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 of t…

[Phys. Rev. D 95, 035025] Published Tue Feb 21, 2017

]]>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

]]>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 ${J}^{PC}={1}^{+\pm}$. The magnetic mom…

[Phys. Rev. D 95, 036015] Published Tue Feb 21, 2017

]]>[Phys. Rev. D 95, 039902] Published Tue Feb 21, 2017

]]>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 $\mathcal{N}=4$ supersymmetric Yang-Mills (SYM). Hence, we sum up on $2n$ for large coupling $\lambda $: the logarithm of the amplitude is pro…

[Phys. Rev. D 95, 041902(R)] Published Tue Feb 21, 2017

]]>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

]]>Calculations indicate that neutrino emission from a supernova could be detected on Earth, possibly revealing how the star explodes.

[Phys. Rev. D 95, 043006] Published Tue Feb 21, 2017

]]>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

]]>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 $\sim 1{0}^{5}$ objects, two orders of magnitudes higher than what is currently avai…

[Phys. Rev. D 95, 043517] Published Tue Feb 21, 2017

]]>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

]]>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

]]>The result presented by the BOSS-SDSS Collaboration measuring the baryon acoustic oscillations of the Lyman-alpha forest from high-redshift quasars indicates a $2.5\sigma $ departure from the standard $\mathrm{\Lambda}$-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

]]>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

]]>We discuss the mechanism by which the field vacuum energy varies as a result of strong self-interaction. We propose a nonperturbative approach to treat strong interactions and discuss the problem in terms of quasiparticles describing the motion of field modes. The resulting vacuum energy is variable…

[Phys. Rev. D 95, 043522] Published Tue Feb 21, 2017

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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

]]>We consider the leading and subleading UV divergences for the four-point on-shell scattering amplitudes in $D=8$ $\mathcal{N}=1$ 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

]]>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

]]>The fluctuations of five-dimensional self-gravitating non-Abelian kinks which arise from the breaking of the $SU(5)\times {Z}_{2}$-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 ${Z}_{2}$ kinks, …

[Phys. Rev. D 95, 045008] Published Tue Feb 21, 2017

]]>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

]]>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

]]>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

]]>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

]]>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

]]>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 poten…

[Phys. Rev. D 95, 034018] Published Fri Feb 17, 2017

]]>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 $\gamma +g\to {B}_{c}^{(*)}+b+\overline{c}$, the extrins…

[Phys. Rev. D 95, 034019] Published Fri Feb 17, 2017

]]>Over the past years, the LHC experiments have reported experimental evidence for processes associated to photon-photon and photon-hadron interactions, showing their potential to investigate the production of low- and high-mass systems in exclusive events. In the particular case of the photoproductio…

[Phys. Rev. D 95, 034020] Published Fri Feb 17, 2017

]]>The QCD collinear factorization framework allows one to describe exclusive backward production of a $J/\psi $ 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

]]>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

]]>Taking advantage of the fact that the flavor of the neutrino in semileptonic $B$ decays $B\to {D}^{(*)}\tau \nu $ 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 boson…

[Phys. Rev. D 95, 035021] Published Fri Feb 17, 2017

]]>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,d}\dots $

[Phys. Rev. D 95, 035022] Published Fri Feb 17, 2017

]]>[Phys. Rev. D 95, 039904] Published Fri Feb 17, 2017

]]>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

]]>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

]]>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

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