The cross section of the double heavy diquark pair production process $pp\to (bc)+(\overline{b}\overline{c})+X$ is calculated in the leading order of the gluonic fusion channel, with all four possible color and spin combinations—$[{}^{1}{S}_{0}{]}_{\overline{3}}$, $[{}^{1}{S}_{0}{]}_{6}$, $[{}^{3}{S}_{1}{]}_{\overline{3}}$, and $[{}^{3}{S}_{1}{]}_{6}$ for each of the two final diquarks—taken into account. Seve…

[Phys. Rev. D 93, 114029] Published Fri Jun 24, 2016

]]>We explore the possibility to explain the 750 GeV diphoton excess recently measured by ATLAS and CMS collaborations in terms of a massive spin-2 particle. In particular, we consider the case in which the top-quark loops can give similar amplitudes as the tree-level contributions to the diphoton and …

[Phys. Rev. D 93, 115032] Published Fri Jun 24, 2016

]]>Current discussions of the allowed two-Higgs-doublet model parameter space after LHC run 1 and the prospects for run 2 are commonly phrased in the context of a quasidegenerate spectrum for the new scalars. Here, we discuss the generic situation of a two-Higgs-doublet model with a nondegenerate spect…

[Phys. Rev. D 93, 115033] Published Fri Jun 24, 2016

]]>We investigate the parameter space of the Standard Model enhanced by a gauge singlet real scalar $S$. Taking into account all the theoretical and experimental constraints, we show the allowed parameter space for two different types of such singlet-enhanced Standard Model. For the first case, the scala…

[Phys. Rev. D 93, 115034] Published Fri Jun 24, 2016

]]>We investigate the isospin symmetry breaking effects within a recently derived Nambu-Jona-Lasinio related model by fitting the measured pseudoscalar meson masses and weak decay couplings ${f}_{\pi}$, ${f}_{K}$. Our model contains the next to leading order terms in the $1/{N}_{c}$ expansion of the effective multiquark Lagr…

[Phys. Rev. D 93, 116005] Published Fri Jun 24, 2016

]]>The production of particle-antiparticle pairs from the quantum field theoretic ground state in the presence of an external electric field is studied. Starting with the quantum-kinetic Boltzmann-Vlasov equation in four-dimensional spacetime, we obtain the corresponding equations in lower dimensionali…

[Phys. Rev. D 93, 116006] Published Fri Jun 24, 2016

]]>Rolling tachyon field models are among the candidates suggested as explanations for the recent acceleration of the Universe. In these models the field is expected to interact with gauge fields and lead to variations of the fine-structure constant $\alpha $. Here we take advantage of recent observational pro…

[Phys. Rev. D 93, 123524] Published Fri Jun 24, 2016

]]>Cosmologists have begun using fully relativistic models to understand the effects of inhomogeneous matter distribution on the evolution of the Universe.

[Phys. Rev. D 93, 124059] Published Fri Jun 24, 2016

]]>We numerically study the scattering coefficients of linear water waves on stationary flows above a localized obstacle. We compare the scattering on trans- and subcritical flows, and then focus on the latter which have been used in recent analog gravity experiments. The main difference concerns the m…

[Phys. Rev. D 93, 124060] Published Fri Jun 24, 2016

]]>Although gravitational radiation causes inspiralling compact binaries to circularize, a variety of astrophysical scenarios suggest that binaries might have small but non-negligible orbital eccentricities when they enter the low-frequency bands of ground- and space-based gravitational-wave detectors.…

[Phys. Rev. D 93, 124061] Published Fri Jun 24, 2016

]]>We present results on the inspiral, merger, and postmerger evolution of a neutron star-neutron star (NSNS) system. Our results are obtained using the hybrid pseudospectral-finite volume Spectral Einstein Code (SpEC). To test our numerical methods, we evolve an equal-mass system for $\approx 22$ orbits before…

[Phys. Rev. D 93, 124062] Published Fri Jun 24, 2016

]]>We present the first detailed study of the kinematics of free relativistic particles whose symmetries are compatible with the ones described by a quantum deformation of the de Sitter algebra, known as $q$–de Sitter Hopf algebra. In such algebra, the quantum deformation parameter is a function of the P…

[Phys. Rev. D 93, 124063] Published Fri Jun 24, 2016

]]>Neutrinoless double-beta decay is a beyond the Standard Model process that would indicate that neutrinos are Majorana fermions, and the lepton number is not conserved. It could be interesting to use the neutrinoless double-beta decay observations to distinguish between several beyond Standard Model …

[Phys. Rev. D 93, 113014] Published Thu Jun 23, 2016

]]>Amplitudes derived from scattering data on elementary targets are basic inputs to neutrino-nucleus cross section predictions. A prominent example is the isovector axial nucleon form factor, ${F}_{A}({q}^{2})$, which controls charged current signal processes at accelerator-based neutrino oscillation experiments.…

[Phys. Rev. D 93, 113015] Published Thu Jun 23, 2016

]]>Estimated are the contributions of the following mechanisms responsible for the decay ${f}_{1}(1285)\to \phantom{\rule{0ex}{0ex}}{f}_{0}(980){\pi}^{0}\to {\pi}^{+}{\pi}^{-}{\pi}^{0}$: (1) the contribution of the ${a}_{0}^{0}(980)-{f}_{0}(980)$ mixing, ${f}_{1}(1285)\to {a}_{0}(980){\pi}^{0}\to \phantom{\rule{0ex}{0ex}}({K}^{+}{K}^{-}+{K}^{0}{\overline{K}}^{0}){\pi}^{0}\to {f}_{0}(980){\pi}^{0}\to {\pi}^{+}{\pi}^{-}{\pi}^{0}$, (2) the contribution of the transition ${f}_{1}(1285)\to ({K}^{+}{K}^{-}+\phantom{\rule{0ex}{0ex}}{K}^{0}{\overline{K}}^{0}){\pi}^{0}\to {f}_{0}(980){\pi}^{0}\to {\pi}^{+}{\pi}^{-}{\pi}^{0}$, a…

[Phys. Rev. D 93, 114027] Published Thu Jun 23, 2016

]]>Recent studies have shown that the well-established ${\mathrm{\Lambda}}_{c}(2595)$ resonance contains a large meson-baryon component, which can vary depending on the specific formalism. In this work, we examine such a picture by utilizing the compositeness condition and the large number of colors (${N}_{c}$) expansion. We exami…

[Phys. Rev. D 93, 114028] Published Thu Jun 23, 2016

]]>A lattice QCD study of the strong decay width and coupling constant of decuplet baryons to an octet baryon-pion state is presented. The transfer matrix method is used to obtain the overlap of lattice states with decuplet baryon quantum numbers on the one hand and octet baryon-pion quantum numbers on…

[Phys. Rev. D 93, 114515] Published Thu Jun 23, 2016

]]>We have completed the one-loop renormalisation of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) allowing for and comparing between different renormalisation schemes. A special attention is paid to on-shell schemes. We study a variety of these schemes based on alternative choices of the p…

[Phys. Rev. D 93, 115031] Published Thu Jun 23, 2016

]]>[Phys. Rev. D 93, 119906] Published Thu Jun 23, 2016

]]>Four collaborations, ANTARES, IceCube, LIGO, and Virgo, join forces to report the non-observation of neutrino events correlated with the GW150914 gravitational wave event reported recently by LIGO. Although the paper reports a negative result, it both sets important constraints on neutrino production in binary coalescence events and marks a significant step in multimessenger astronomy.

[Phys. Rev. D 93, 122010] Published Thu Jun 23, 2016

]]>We consider force-free plasma waves launched by the motion of conducting material through a magnetic field. We develop a spacetime-covariant formalism for perturbations of a uniform magnetic field and show how the transverse motion of a conducting fluid acts as a source. We show that fast-mode waves…

[Phys. Rev. D 93, 123016] Published Thu Jun 23, 2016

]]>Nonthermal histories for the early universe have received notable attention as they are a rich source of phenomenology, while also being well motivated by top-down approaches to beyond the Standard Model physics. The early (pre-big bang nucleosynthesis) matter phase in these models leads to enhanced…

[Phys. Rev. D 93, 123523] Published Thu Jun 23, 2016

]]>This paper is concerned with the construction and analysis of boson stars in the context of nonminimal derivative coupling theories. In particular, we embed our model in the biscalar extension of Horndeski gravity, considering a scalar field theory displaying a nonminimally coupled kinetic term give…

[Phys. Rev. D 93, 124057] Published Thu Jun 23, 2016

]]>We present the first analytic computation of the Detweiler-Barack-Sago gauge-invariant redshift function for a small mass in *eccentric* equatorial orbit around a *spinning* black hole. Our results give the redshift contributions that mix eccentricity and spin effects, through second order in eccentrici…

[Phys. Rev. D 93, 124058] Published Thu Jun 23, 2016

]]>It is known that in contrast with the $E$-mode polarization the $B$-mode polarization of the cosmic microwave background cannot be generated by the Compton scattering in the case of the scalar mode of metric perturbation. However, it is possible to generate the $B$ mode by the Compton scattering in the ca…

[Phys. Rev. D 93, 125029] Published Thu Jun 23, 2016

]]>The helicity of a Dirac neutrino with mass $m$ evolves under the influence of a $B$ field because it has a magnetic dipole moment proportional to $m$. Moreover, it was recently shown that a polarized or anisotropic medium engenders the same effect for both Dirac and Majorana neutrinos. Because a $B$ field p…

[Phys. Rev. D 93, 125030] Published Thu Jun 23, 2016

]]>The branching fractions of the $\mathrm{\Upsilon}(1S)$ inclusive decays into final states with a $J/\psi $ or a $\psi (2S)$ are measured with improved precision to be $\mathcal{B}(\mathrm{\Upsilon}(1S)\to J/\psi +\text{anything})=(5.25\pm 0.13(\mathrm{stat})\pm 0.25(\mathrm{syst}))\times {10}^{-4}$ and $\mathcal{B}(\mathrm{\Upsilon}(1S)\to \psi (2S)+\text{anything})=(1.23\pm 0.17(\mathrm{stat})\pm 0.11(\mathrm{syst}))\times {10}^{-4}$. The first search for $\mathrm{\Upsilon}(1S)$ decays into $XYZ$ s…

[Phys. Rev. D 93, 112013] Published Wed Jun 22, 2016

]]>The vector boson fusion (VBF) event topology at the Large Hadron Collider (LHC) allows efficient suppression of dijet backgrounds and is therefore a promising target for new physics searches. We consider dark matter models which interact with the standard model through the electroweak sector—either …

[Phys. Rev. D 93, 113013] Published Wed Jun 22, 2016

]]>Fluid-dynamical equations of motion can be derived from the Boltzmann equation in terms of an expansion around a single-particle distribution function which is in local thermodynamical equilibrium, i.e., isotropic in momentum space in the rest frame of a fluid element. However, in situations where t…

[Phys. Rev. D 93, 114025] Published Wed Jun 22, 2016

]]>We explore some possibilities for obtaining useful metrics and dilatons for anti–de Sitter (AdS)/QCD models. As a guideline, we consider dilatons and/or metrics that on the one hand reproduce the mesonic spectrum, and that on the other hand allow us a correct implementation of chiral symmetry breaki…

[Phys. Rev. D 93, 114026] Published Wed Jun 22, 2016

]]>Typical searches for supersymmetry cannot test models in which the two lightest particles have a small (“compressed”) mass splitting, due to the small momentum of the particles produced in the decay of the second-to-lightest particle. However, data sets with large missing transverse momentum (${E}_{\mathrm{T}}^{\mathrm{miss}}$…

[Phys. Rev. D 93, 115029] Published Wed Jun 22, 2016

]]>We argue that the diphoton excess recently reported by ATLAS and CMS can be explained, along with several anomalies seen in the flavor sector, in models where a Standard Model singlet scalar resonance with mass ${M}_{S}\approx 750\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{GeV}$ is produced in gluon fusion via loops containing a scalar color-triplet lepto…

[Phys. Rev. D 93, 115030] Published Wed Jun 22, 2016

]]>[Phys. Rev. D 93, 119905] Published Wed Jun 22, 2016

]]>BepiColombo is a joint ESA/JAXA mission to Mercury with challenging objectives regarding geophysics, geodesy, and fundamental physics. The Mercury Orbiter Radioscience Experiment (MORE) is one of the on-board experiments, including three different but linked experiments: gravimetry, rotation, and re…

[Phys. Rev. D 93, 123014] Published Wed Jun 22, 2016

]]>Neutrinos are copiously emitted from neutrino-cooled black hole accretion disks playing a fundamental role in their evolution, as well as in the production of gamma ray bursts and r-process nucleosynthesis. The black hole generates a strong gravitational field able to change the properties of the em…

[Phys. Rev. D 93, 123015] Published Wed Jun 22, 2016

]]>The impact of biasing schemes on the clustering of tracers of the large-scale structure is analytically studied in the weakly nonlinear regime. For this purpose, we use the one-loop approximation of the integrated perturbation theory together with the renormalized bias functions of various, physical…

[Phys. Rev. D 93, 123522] Published Wed Jun 22, 2016

]]>Horndeski’s theory of gravity is the most general scalar-tensor theory with a single scalar whose equations of motion contain at most second-order derivatives. A subsector of Horndeski’s theory known as “Fab Four” gravity allows for dynamical self-tuning of the quantum vacuum energy, and therefore i…

[Phys. Rev. D 93, 124056] Published Wed Jun 22, 2016

]]>We develop an operator description, much like thermofield dynamics, for quantum field theories on a real time path with an arbitrary parameter $\sigma \text{\hspace{0.17em}}(0\le \sigma \le \beta )$. We point out new features which arise when $\sigma \ne \frac{\beta}{2}$ in that the Hilbert space develops a natural, modified inner product different from the standard D…

[Phys. Rev. D 93, 125028] Published Wed Jun 22, 2016

]]>We report the measurement of muon neutrino charged-current interactions on carbon without pions in the final state at the T2K beam energy using $5.734\times {10}^{20}$ protons on target. For the first time the measurement is reported as a flux-integrated, double-differential cross section in muon kinematic varia…

[Phys. Rev. D 93, 112012] Published Tue Jun 21, 2016

]]>We argue that the process $pp\to (\text{jet}\text{\hspace{0.17em}}\gamma )X$, for which a photon is observed inside a fully reconstructed jet and is treated as part of the jet, offers new probes of the so far little-known fragmentation functions for photons. We present a next-to-leading-order QCD calculation of the cross section for this…

[Phys. Rev. D 93, 114021] Published Tue Jun 21, 2016

]]>We present a first QCD analysis of next-to-next-leading-order (NNLO) contributions of the spin-dependent parton distribution functions (PPDFs) in the nucleon and their uncertainties using the Jacobi polynomial approach. Having the NNLO contributions of the quark-quark and gluon-quark splitting funct…

[Phys. Rev. D 93, 114024] Published Tue Jun 21, 2016

]]>We present results for the spectrum of a strongly interacting SU(3) gauge theory with ${N}_{f}=8$ light fermions in the fundamental representation. Carrying out nonperturbative lattice calculations at the lightest masses and largest volumes considered to date, we confirm the existence of a remarkably light…

[Phys. Rev. D 93, 114514] Published Tue Jun 21, 2016

]]>We investigate the possibility that the dark matter candidate is from a pure non-Abelian gauge theory of the hidden sector, motivated in large part by its elegance and simplicity. The dark matter is the lightest bound state made of the confined gauge fields, the hidden glueball. We point out that th…

[Phys. Rev. D 93, 115025] Published Tue Jun 21, 2016

]]>The relevant phenomenology and the best search schemes of a subelectroweak-scale gauge boson can be vastly different depending on its coupling. For instance, the rare decay into a light gauge boson and the high precision parity test can be sensitive if it has an axial coupling. The minimal gauge ext…

[Phys. Rev. D 93, 115028] Published Tue Jun 21, 2016

]]>We find a geometrical description from a field theoretical setup based on Wilson’s renormalization group in real space. We show that renormalization group equations of coupling parameters encode the metric structure of an emergent curved space, regarded to be an Einstein equation for the emergent gr…

[Phys. Rev. D 93, 121702(R)] Published Tue Jun 21, 2016

]]>We present the results of a search for weakly interacting massive particles (WIMPs) from the commissioning run of the PandaX-II experiment located at the China Jinping Underground Laboratory. A WIMP search data set with an exposure of $306\times 19.1\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{kg}\text{\u2212}\text{day}$ was taken, while its dominant ${}^{85}\mathrm{Kr}$ background wa…

[Phys. Rev. D 93, 122009] Published Tue Jun 21, 2016

]]>When a supernova explosion occurs in neighbors around hundreds pc, current and future neutrino detectors are expected to observe neutrinos from the presupernova star before the explosion. We show a possibility for obtaining the evidence for burning processes in the central region of presupernova sta…

[Phys. Rev. D 93, 123012] Published Tue Jun 21, 2016

]]>We discuss the quasinormal oscillations of black holes which are sourced by a nonlinear electrodynamic field. While previous studies have focused on the computation of quasinormal frequencies for the wave or higher spin equation on a fixed background geometry described by such black holes, here we c…

[Phys. Rev. D 93, 123013] Published Tue Jun 21, 2016

]]>We investigate the geodesics of a Schwarzschild spacetime embedded in an isotropic expanding cosmological background (McVittie metric). We focus on bound particle geodesics in a background including matter and phantom dark energy with constant dark energy equation-of-state parameter $w<-1$ involvin…

[Phys. Rev. D 93, 123520] Published Tue Jun 21, 2016

]]>We investigate the problem of finding a pure spin-connection formulation of general relativity with nonvanishing cosmological constant. We first revisit the problem at the linearized level and find that the pure spin-connection, quadratic Lagrangian, takes a form reminiscent to Weyl gravity, given b…

[Phys. Rev. D 93, 124047] Published Tue Jun 21, 2016

]]>A number of works have shown that important information on the equation of state of matter at nuclear density can be extracted from the gravitational waves emitted by merging neutron-star binaries. We present a comprehensive analysis of the gravitational-wave signal emitted during the inspiral, merg…

[Phys. Rev. D 93, 124051] Published Tue Jun 21, 2016

]]>We investigate theories in which gravity arises as a consequence of entropy. We distinguish between two approaches to this idea: *holographic gravity*, in which Einstein’s equation arises from keeping entropy stationary in equilibrium under variations of the geometry and quantum state of a small regio…

[Phys. Rev. D 93, 124052] Published Tue Jun 21, 2016

]]>Following our previous paper, Bergeron *et al.*, Smooth quantum dynamics of the mixmaster universe, Phys. Rev. D **92**, 061302(R) (2015), concerning the quantization of the vacuum Bianchi IX model and the Born-Huang-Oppenheimer framework, we present a further analysis of the dynamical properties of the m…

[Phys. Rev. D 93, 124053] Published Tue Jun 21, 2016

]]>We derive exact expressions for the scalar and electromagnetic self-forces and self-torques acting on arbitrary static extended bodies in arbitrary static spacetimes with any number of dimensions. Nonperturbatively, our results are identical in all dimensions. Meaningful point particle limits are qu…

[Phys. Rev. D 93, 124054] Published Tue Jun 21, 2016

]]>We study electrically charged perfect fluid toroidal structures encircling a spherically symmetric gravitating object with Schwarzschild spacetime geometry and endowed with a dipole magnetic field. The work represents a direct continuation of our previous general-relativistic studies of electrically…

[Phys. Rev. D 93, 124055] Published Tue Jun 21, 2016

]]>We discuss the magnetic responses of vector meson masses based on the hidden local symmetry (HLS) model in a constant magnetic field, described by the lightest two-flavor system including the pion, rho and omega mesons in the spectrum. The effective masses influenced under the magnetic field are eva…

[Phys. Rev. D 93, 125027] Published Tue Jun 21, 2016

]]>We have searched for the decay ${B}^{0}\to \varphi \gamma $ using the full Belle data set of $772\times {10}^{6}$ $B\overline{B}$ pairs collected at the $\mathrm{\Upsilon}(4\text{S})$ resonance with the Belle detector at the KEKB ${e}^{+}{e}^{-}$ collider. No signal is observed, and we set an upper limit on the branching fraction of $\mathcal{B}({B}^{0}\to \varphi \gamma )<1.0\times {10}^{-7}$ at the 90% confidence level. …

[Phys. Rev. D 93, 111101(R)] Published Mon Jun 20, 2016

]]>A search for a Higgs boson with suppressed couplings to fermions, ${h}_{f}$, assumed to be the neutral, lower-mass partner of the Higgs boson discovered at the Large Hadron Collider, is reported. Such a Higgs boson could exist in extensions of the standard model with two Higgs doublets, and could be produc…

[Phys. Rev. D 93, 112010] Published Mon Jun 20, 2016

]]>Based on a sample of $(1310.6\pm 10.5)\times {10}^{6}$ $J/\psi $ events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay $J/\psi \to \gamma \varphi \varphi $ is performed in order to study the intermediate states. Results of the partial wave analysis show that the structures are predominan…

[Phys. Rev. D 93, 112011] Published Mon Jun 20, 2016

]]>We present a new set of leading-twist parton distribution functions, referred to as “CJ15,” which take advantage of developments in the theoretical treatment of nuclear corrections as well as new data. The analysis includes, for the first time, data on the free neutron structure function from Jeffer…

[Phys. Rev. D 93, 114017] Published Mon Jun 20, 2016

]]>We consider the calculation of the pion-photon transition form factor ${F}^{{\gamma}^{*}\gamma {\pi}^{0}}({Q}^{2})$ within light-cone sum rules focusing attention to the low-mid region of momenta. The central aim is to estimate the theoretical uncertainties which originate from a wide variety of sources related to (i) the relevance o…

[Phys. Rev. D 93, 114018] Published Mon Jun 20, 2016

]]>The success of QCD factorization (QCDF) in predicting branching ratios for charmless $B$ decays to light pseudoscalar and vector mesons and the small $CP$ asymmetries measured at *BABAR*, Belle, and LHCb show that the phase in these decays, as predicted by QCDF, are not large. For a precise test of QCDF, …

[Phys. Rev. D 93, 114019] Published Mon Jun 20, 2016

]]>The Bakamjian-Thomas relativistic quark model, describing hadrons with a fixed number of constituents, yields in the heavy quark limit of QCD covariant Isgur-Wise functions and satisfies the whole tower of lowest moment sum rules (Bjorken-Uraltsev type sum rules). We first recall, as well as earlier…

[Phys. Rev. D 93, 114020] Published Mon Jun 20, 2016

]]>We introduce the use of the Weibull distribution as a simple parametrization of charged particle multiplicities in hadron-hadron collisions at all available energies, ranging from ISR energies to the most recent LHC energies. In statistics, the Weibull distribution has wide applicability in natural …

[Phys. Rev. D 93, 114022] Published Mon Jun 20, 2016

]]>For particle physics observables at colliders such as the LHC at CERN, it has been common practice for many decades to estimate the theoretical uncertainty by studying the variations of the predicted cross sections with *a priori* unpredictable scales. In astroparticle physics, this has so far not bee…

[Phys. Rev. D 93, 114023] Published Mon Jun 20, 2016

]]>We present a lattice QCD determination of the vector and scalar form factors of the semileptonic $K\to \pi \ell \nu $ decay which are relevant for the extraction of the Cabibbo-Kobayashi-Maskawa matrix element $|{V}_{us}|$ from experimental data. Our results are based on the gauge configurations produced by the European …

[Phys. Rev. D 93, 114512] Published Mon Jun 20, 2016

]]>We nonperturbatively determine the renormalization factor of the axial vector current in lattice QCD with ${N}_{\mathrm{f}}=3$ flavors of Wilson-clover fermions and the tree-level Symanzik-improved gauge action. The (by now standard) renormalization condition is derived from the massive axial Ward identity, and it …

[Phys. Rev. D 93, 114513] Published Mon Jun 20, 2016

]]>The lepton flavor violating decay of the Standard Model-like Higgs boson (LFVHD) is discussed in the framework of the radiative neutrino mass model built in [K. Nishiwaki, H. Okada, and Y. Orikasa, Phys. Rev. D **92**, 093013 (2015)]. The branching ratio (BR) of the LFVHD is shown to reach ${10}^{-5}$ in the m…

[Phys. Rev. D 93, 115026] Published Mon Jun 20, 2016

]]>If the 750-GeV diphoton excess is identified with the color-singlet isosinglet technipion ${P}^{0}$ (750) in the one-family walking technicolor model, as in our previous paper, then there should exist another color-singlet technipion-isotriplet one, ${P}^{\pm ,3}$, predicted at around 950 GeV independently of the dy…

[Phys. Rev. D 93, 115027] Published Mon Jun 20, 2016

]]>[Phys. Rev. D 93, 119904] Published Mon Jun 20, 2016

]]>We present an archival search for transient gravitational-wave bursts in coincidence with 27 single-pulse triggers from Green Bank Telescope pulsar surveys, using the LIGO, Virgo, and GEO interferometer network. We also discuss a check for gravitational-wave signals in coincidence with Parkes fast r…

[Phys. Rev. D 93, 122008] Published Mon Jun 20, 2016

]]>High-energy neutrinos (HEN) and gravitational waves (GW) can probe astrophysical sources in addition to electromagnetic observations. Multimessenger studies can reveal the nature of the sources, which may not be discerned from one type of signal alone. We discuss HEN emission in connection with the …

[Phys. Rev. D 93, 123011] Published Mon Jun 20, 2016

]]>In this paper, we study the expectation values of the induced charge and current densities for a massive bosonic field with nonzero chemical potential in the geometry of a higher-dimensional compactified cosmic string with magnetic fluxes along the string core and also enclosed by the compactified d…

[Phys. Rev. D 93, 123521] Published Mon Jun 20, 2016

]]>We investigate irregularity factors for a self-gravitating spherical star evolving in the presence of an imperfect fluid. We explore the gravitational field equations and the dynamical equations with the systematic construction in $f(R,T)$ gravity, where $T$ is the trace of the energy-momentum tensor. F…

[Phys. Rev. D 93, 124048] Published Mon Jun 20, 2016

]]>We show that optomechanical systems can test the Schrödinger-Newton equation of gravitational quantum mechanics due to Yang *et al.* Phys. Rev. Lett. **110**, 170401 (2013). This equation is motivated by semiclassical gravity, a widely used theory of interacting gravitational and quantum fields. From the …

[Phys. Rev. D 93, 124049] Published Mon Jun 20, 2016

]]>The tetrad method is used for an introduction of local Lorentz frames and a detailed analysis of local Lorentz transformations. A formulation of equations of motion in local Lorentz frames is based on the Pomeransky-Khriplovich gravitoelectromagnetic fields. These fields are calculated in the most i…

[Phys. Rev. D 93, 124050] Published Mon Jun 20, 2016

]]>In this paper, we discuss the impact of a tiny Lorentz violating ${b}^{\mu}$ term on the one-dimensional motion of a Dirac particle scattering on a rectangular barrier. We assume the experiment is done in a particular inertial frame, where the components of ${b}^{\mu}$ are assumed constants. The results show that Lor…

[Phys. Rev. D 93, 125022] Published Mon Jun 20, 2016

]]>We study the nonlinear responses of relativistic chiral matter to the external fields such as the electric field $\mathit{E}$, gradients of temperature and chemical potential, $\mathbf{\nabla}T$ and $\mathbf{\nabla}\mu $. Using the kinetic theory with Berry curvature corrections under the relaxation time approximation, we compute the transport …

[Phys. Rev. D 93, 125023] Published Mon Jun 20, 2016

]]>The Casimir effect is a physical manifestation of zero point energy of quantum vacuum. In a relativistic quantum field theory, Poincaré symmetry of the theory seems, at first sight, to imply that nonzero vacuum energy is inconsistent with translational invariance of the vacuum. In the setting of two…

[Phys. Rev. D 93, 125024] Published Mon Jun 20, 2016

]]>We consider the continuation of free and interacting scalar field theory to noninteger spacetime dimension $d$. We find that the correlation functions in these theories are necessarily incompatible with unitarity (or with reflection positivity in Euclidean signature). In particular, the theories conta…

[Phys. Rev. D 93, 125025] Published Mon Jun 20, 2016

]]>We study a heavy impurity moving longitudinal with the direction of an external magnetic field in an anomalous chiral medium. Such system would carry a nondissipative current of chiral magnetic effect associated with the anomaly. We show, by generalizing Landau’s criterion for superfluidity, that th…

[Phys. Rev. D 93, 125026] Published Mon Jun 20, 2016

]]>We derive a formula which applies to conformal field theories on a spatial torus and gives the asymptotic density of states solely in terms of the vacuum energy on a parallel plate geometry. The formula follows immediately from global scale and Lorentz invariance, but to our knowledge has not previo…

[Phys. Rev. D 93, 126005] Published Mon Jun 20, 2016

]]>We discuss single inclusive hadron production from a high-energy quark scattering off a strong target color field in the color glass condensate formalism. Recent calculations of this process at the next-to-leading-order accuracy have led to negative cross sections at large transverse momenta. We ide…

[Phys. Rev. D 93, 114016] Published Fri Jun 17, 2016

]]>QCD and related gauge theories have a sign problem when a $\theta $ term is included; this complicates the extraction of physical information from Euclidean-space calculations as one would do in lattice studies. The sign problem arises in this system because the partition function for configurations with fi…

[Phys. Rev. D 93, 114510] Published Fri Jun 17, 2016

]]>In this work, we calculate meson-baryon scattering phase shifts in four channels using lattice QCD methods. From a set of calculations at four volumes, corresponding to spatial sizes of 2, 2.5, 3, and 4 fm, and a pion mass of ${m}_{\pi}\sim 390\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{MeV}$, we determine the scattering lengths and effective ranges for …

[Phys. Rev. D 93, 114511] Published Fri Jun 17, 2016

]]>Dark matter searches in gamma ray final states often make use of the fact that photons can be produced from final state muons. Modern Monte Carlo generators and dark matter codes include the effects of final state radiation from muons produced in the dark matter annihilation process itself, but negl…

[Phys. Rev. D 93, 115024] Published Fri Jun 17, 2016

]]>[Phys. Rev. D 93, 119903] Published Fri Jun 17, 2016

]]>Gravitational wave searches for continuous-wave signals from neutron stars are especially challenging when the star’s spin frequency is unknown *a priori* from electromagnetic observations and wanders stochastically under the action of internal (e.g., superfluid or magnetospheric) or external (e.g., a…

[Phys. Rev. D 93, 123009] Published Fri Jun 17, 2016

]]>Using the Hilbert-Huang transform (HHT), we analyze gravitational waves from late inspiral, merger, and post-merger phases of binary neutron stars coalescence, computed by a general relativistic numerical simulation. The HHT analysis has been developed as a method for time series analysis of nonline…

[Phys. Rev. D 93, 123010] Published Fri Jun 17, 2016

]]>We recall some well- and some lesser known results about the Kodama state and the related $\theta $ ambiguity in defining canonical variables. Based on them, we make some comments highlighting that the Kodama state for real connection variables can be given a precise meaning and that it implements a vacuum …

[Phys. Rev. D 93, 124042] Published Fri Jun 17, 2016

]]>In the weak-field limit, analytic $f(R)$ models of gravity introduce a Yukawa-like correction to the Newtonian gravitational potential. These models have been widely tested at galactic scales and provide an alternative explanation to the dynamics of galaxies without Dark Matter. We study if the temper…

[Phys. Rev. D 93, 124043] Published Fri Jun 17, 2016

]]>The effective action of the recently proposed vector Galileon theory is considered. Using the background field method, we obtain the one-loop correction to the propagator of the Proca field from vector Galileon self-interactions. Contrary to the so-called scalar Galileon interactions, the two-point …

[Phys. Rev. D 93, 124044] Published Fri Jun 17, 2016

]]>Recently, motivated by certain loop quantum gravity-inspired corrections, it was shown that for spherically symmetric midisuperspace models infinitely many second-derivative theories of gravity exist (as revealed by the presence of three arbitrary functions in the corresponding Lagrangian/Hamiltonia…

[Phys. Rev. D 93, 124045] Published Fri Jun 17, 2016

]]>We perform neutrino radiation-hydrodynamics simulations for the merger of asymmetric binary neutron stars in numerical relativity. Neutron stars are modeled by soft and moderately stiff finite-temperature equations of state (EOS). We find that the properties of the dynamical ejecta such as the total…

[Phys. Rev. D 93, 124046] Published Fri Jun 17, 2016

]]>We explore $O(N)$ models in dimensions $4<d<6$. Specifically, we investigate models of an $O(N)$ vector field coupled to an additional scalar field via a cubic interaction. Recent results in $d=6-\epsilon $ have uncovered an interacting ultraviolet fixed point of the renormalization group (RG) if the number $N$…

[Phys. Rev. D 93, 125021] Published Fri Jun 17, 2016

]]>The entanglement exhibits extremal or singular behavior near quantum critical points (QCPs) in many condensed matter models. These intriguing phenomena, however, still call for a widely accepted understanding. In this paper we study this issue in holographic framework. We investigate the connection …

[Phys. Rev. D 93, 126004] Published Fri Jun 17, 2016

]]>[Phys. Rev. D 93, 129904] Published Fri Jun 17, 2016

]]>In supersymmetric ${E}_{6}$ the masses of the third family quarks and charged lepton, $t-b-\tau $, as well as the masses of the vectorlike quarks and leptons, $D-\overline{D}$ and $L-\overline{L}$, may arise from the coupling $2{7}_{3}\times 2{7}_{3}\times 2{7}_{H}$, where $2{7}_{3}$ and $2{7}_{H}$ denote the third family matter and Higgs multiplets, respectively. We assume tha…

[Phys. Rev. D 93, 111701(R)] Published Thu Jun 16, 2016

]]>Inspired by the 750 GeV diphoton state recently reported by ATLAS and CMS, we propose a $U(1{)}_{B\u2013L}$ extension of the MSSM which predicts the existence of four spin zero resonance states that are degenerate in mass in the supersymmetric limit. Vectorlike fields, a gauge singlet field, as well as the MSSM…

[Phys. Rev. D 93, 111702(R)] Published Thu Jun 16, 2016

]]>In the nucleon electroexcitation reactions, ${\gamma}^{*}N\to R$, where $R$ is a nucleon resonance (${N}^{*}$), the electric amplitude $E$ and the longitudinal amplitude ${S}_{1/2}$ are related by $E\propto \frac{\omega}{|\mathbf{q}|}{S}_{1/2}$, in the pseudothreshold limit ($|\mathbf{q}|\to 0$), where $\omega $ and $|\mathbf{q}|$ are, respectively, the energy and the magnitude of 3-momentum of the p…

[Phys. Rev. D 93, 113012] Published Thu Jun 16, 2016

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