We study the sensitivity of the process ${\mu}^{-}{\mu}^{+}\to HH$ to the ${q}^{2}$ dependence of the $HHH$ form factor, which can reflect the Higgs boson structure, especially in the case of compositeness. We compute the Born and one-loop SM contribution to this process. We then show how the ${\mu}^{-}{\mu}^{+}\to HH$ polarized and unpolarized …

[Phys. Rev. D 93, 093018] Published Fri May 27, 2016

]]>We present a global analysis of the semileptonic and purely leptonic nonuniversal and flavor-changing nonstandard neutrino interactions in all the known short-baseline neutrino—and antineutrino—electron scattering experiments. The nonstandard effects at the source and at the detector can be more tra…

[Phys. Rev. D 93, 093019] Published Fri May 27, 2016

]]>The unitarization of the longitudinal vector boson scattering (VBS) cross section by the Higgs boson is a fundamental prediction of the Standard Model which has not been experimentally verified. One of the most promising ways to measure VBS uses events containing two leptonically decaying same-elect…

[Phys. Rev. D 93, 094033] Published Fri May 27, 2016

]]>At the extreme energies of the Large Hadron Collider, massive particles can be produced at such high velocities that their hadronic decays are collimated and the resulting jets overlap. Deducing whether the substructure of an observed jet is due to a low-mass single particle or due to multiple decay…

[Phys. Rev. D 93, 094034] Published Fri May 27, 2016

]]>Hadrons in lattice QCD are usually created employing smeared interpolators. We introduce a new quark smearing that allows us to maintain small statistical errors and good overlaps of hadronic wave functions with the respective ground states, also at high spatial momenta. The method is successfully t…

[Phys. Rev. D 93, 094515] Published Fri May 27, 2016

]]>We study SU(2) gauge theory with two fermion flavors in the adjoint representation. Using a clover improved HEX smeared action and the gradient flow running coupling allows us to simulate with larger lattice size than before. We find an infrared fixed point after a continuum extrapolation in the ran…

[Phys. Rev. D 93, 094516] Published Fri May 27, 2016

]]>High-precision astrometry on sub-micro-arcsecond level in angular resolution requires accurate determination of the trajectory of a light-signal from the celestial light source through the gravitational field of the Solar System toward the observer. In this investigation the light trajectory in the …

[Phys. Rev. D 93, 103010] Published Fri May 27, 2016

]]>We investigate the generation of magnetic fields from nonlinear effects around recombination. As tight-coupling is gradually lost when approaching $z\simeq 1100$, the velocity difference between photons and baryons starts to increase, leading to an increasing Compton drag of the photons on the electrons. Th…

[Phys. Rev. D 93, 103536] Published Fri May 27, 2016

]]>We construct a new global, fully analytic, approximate spacetime which accurately describes the dynamics of nonprecessing, spinning black hole binaries during the inspiral phase of the relativistic merger process. This approximate solution of the vacuum Einstein’s equations can be obtained by asympt…

[Phys. Rev. D 93, 104057] Published Fri May 27, 2016

]]>We present a new $BF$-type action for complex general relativity with or without a cosmological constant resembling Plebanski’s action, which depends on an $\mathrm{SO}(3,\mathbb{C})$ connection, a set of 2-forms, a symmetric matrix, and a 4-form. However, it differs from the Plebanski formulation in the way that the sym…

[Phys. Rev. D 93, 104058] Published Fri May 27, 2016

]]>We discuss fermions in a spontaneously generated holographic lattice background. The lattice structure at the boundary is generated by introducing a higher-derivative interaction term between a $U(1)$ gauge field and a scalar field. We solve the equations of motion below the critical temperature at wh…

[Phys. Rev. D 93, 105045] Published Fri May 27, 2016

]]>A search for supersymmetry in hadronic final states with highly boosted $W$ bosons and $b$ jets is presented, focusing on compressed scenarios. The search is performed using proton-proton collision data at a center-of-mass energy of 8 TeV, collected by the CMS experiment at the LHC, corresponding to an …

[Phys. Rev. D 93, 092009] Published Thu May 26, 2016

]]>We study the effects of nonstandard interactions on the oscillation pattern of atmospheric neutrinos. We use neutrino oscillograms as our main tool to infer the role of nonstandard interactions (NSI) parameters at the probability level in the energy range, $E\in [1,20]\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{GeV}$ and zenith angle range, $\mathrm{cos}\theta \in \dots $

[Phys. Rev. D 93, 093017] Published Thu May 26, 2016

]]>In an experiment currently being performed at the Institute for High Energy Physics, Serpukhov, Russia, a beam of charged kaons is directed on a copper target. In the electromagnetic field of the target nuclei, two reactions occur: ${K}^{+}\gamma \to {K}^{+}{\pi}^{0}$ and ${K}^{+}\gamma \to {K}^{0}{\pi}^{+}$. A peculiar distinction between these two reac…

[Phys. Rev. D 93, 094029] Published Thu May 26, 2016

]]>We investigate long-range rapidity correlations of pairs of prompt photons and jets in the color glass condensate framework in proton-proton and proton-nucleus collisions at RHIC and the LHC. We show that photon-jet correlations exhibit long-range azimuthal collimation at the near side for low trans…

[Phys. Rev. D 93, 094030] Published Thu May 26, 2016

]]>In a series of papers, Bardeen, Buras and Gérard have proposed a large-${N}_{c}$ method to evaluate hadronic weak matrix elements to attack, for instance, the determination of the $\mathrm{\Delta}I=1/2$ rule and $\mathrm{Re}({\epsilon}^{\prime}/\epsilon )$. Here we test this method to the determination of the form factor parameters ${a}_{+}$ and ${b}_{+}$ in the decays ${K}^{\dots}$

[Phys. Rev. D 93, 094031] Published Thu May 26, 2016

]]>We investigate the properties of asymmetric quark matter and strange quark matter in the framework of the SU(3) Nambu–Jona-Lasinio (NJL) model with two types of vector interactions: (1) the flavor-dependent repulsion among different flavors of quarks with the coupling constant ${G}_{V}$, and (2) the univer…

[Phys. Rev. D 93, 094032] Published Thu May 26, 2016

]]>A solution to the sign problem is the so-called “Lefschetz thimble approach” where the domain of integration for field variables in the path integral is deformed from the real axis to a submanifold in the complex space. For properly chosen submanifolds (“thimbles”) the sign problem disappears or is …

[Phys. Rev. D 93, 094514] Published Thu May 26, 2016

]]>We study the quark flavor violating Higgs boson decay $h\to \overline{b}s+b\overline{s}$ in the minimal supersymmetric standard model (MSSM). The decay is analyzed first in a model-independent approach and second in the minimal flavor violating (MFV) constrained MSSM. The experimental constraints from $B$-physics observables …

[Phys. Rev. D 93, 095021] Published Thu May 26, 2016

]]>In this work, we investigate the possibility of probing a class of neutrino mass models at the LHC proton-proton collisions with 8 and 14 TeV energies. The existence of lepton flavor violating interactions for a singlet charged scalar, ${S}^{\pm}$, that couples to the leptons could induce many processes such…

[Phys. Rev. D 93, 095022] Published Thu May 26, 2016

]]>The observability of a gluino at LHC run II is analyzed for the case where the gluino lies in the gluino-neutralino coannihilation region and the mass gap between the gluino and the neutralino is small. The analysis is carried out under the Higgs boson mass constraint and the constraint of dark matt…

[Phys. Rev. D 93, 095023] Published Thu May 26, 2016

]]>We study all implementations of the ${S}_{3}$ symmetry in the two Higgs doublet models with quarks, consistent with nonzero quark masses and a Cabibbo-Kobayashi-Maskawa (CKM) matrix, which is not block diagonal. We study the impact of the various soft-breaking terms and vacuum expectation values and find a…

[Phys. Rev. D 93, 095024] Published Thu May 26, 2016

]]>Using the QCD sum rule approach, we investigate the possible four-quark structure for the new observed ${B}_{s}^{0}{\pi}^{\pm}$ narrow structure (D0). We use a diquak-antidiquark scalar current and work to the order of ${m}_{s}$ in full QCD, without relying on $1/{m}_{Q}$ expansion. Our study indicates that although it is possible …

[Phys. Rev. D 93, 096011] Published Thu May 26, 2016

]]>We calculate the electric conductivity of a gas of relativistic particles with isotropic cross sections using the Boltzmann equation as the starting point. Our analysis is restricted to elastic collisions. We show the perfect agreement with previously published numerical results for a massless quark…

[Phys. Rev. D 93, 096012] Published Thu May 26, 2016

]]>We show that the Planck 2015 and BICEP2/KECK measurements of the cosmic microwave background (CMB) anisotropies provide together an information gain of $0.82\pm 0.13$ bits on the reheating history over all slow-roll single-field models of inflation. This corresponds to a 40% improvement compared to the P…

[Phys. Rev. D 93, 103532] Published Thu May 26, 2016

]]>In recent work we proposed a novel theory of dark matter (DM) superfluidity that matches the successes of the $\mathrm{\Lambda}\mathrm{CDM}$ model on cosmological scales while simultaneously reproducing modified Newtonian dynamics (MOND) phenomenology on galactic scales. The agents responsible for mediating the MONDian force…

[Phys. Rev. D 93, 103533] Published Thu May 26, 2016

]]>By lowering their energy threshold, direct dark matter searches can reach the neutrino floor with experimental technology that is now in development. The ${}^{7}\mathrm{Be}$ flux can be detected with $\sim 10\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{eV}$ nuclear recoil energy threshold and 50 kg/yr exposure. The $pep$ flux can be detected with $\sim 3$ ton/yr exposure,…

[Phys. Rev. D 93, 103534] Published Thu May 26, 2016

]]>Within the context of ultralight Bose-Einstein condensate (BEC) dark matter, we analyze the head-on encounters of two structures. These structures are made of a BEC component, which is a ground-state equilibrium solution of the Gross-Pitaevskii-Poisson (GPP) system, together with a component of lumi…

[Phys. Rev. D 93, 103535] Published Thu May 26, 2016

]]>We analyze the energy spectra of Dirac fermions in the presence of rotation and magnetic field. We find that the Landau degeneracy is resolved by rotation. A drastic change in the energy dispersion relation leads to the “rotational magnetic inhibition” that is a novel phenomenon analogous to the inv…

[Phys. Rev. D 93, 104052] Published Thu May 26, 2016

]]>Analysis of time-domain profiles for gravitational perturbations shows that Gauss-Bonnet black holes in a de Sitter world possess a new kind of dynamical instability which does not take place for asymptotically flat Einstein-Gauss-Bonnet black holes. The new instability is in the gravitational pertu…

[Phys. Rev. D 93, 104053] Published Thu May 26, 2016

]]>We study the inner dynamics of accreting Eddington-inspired Born-Infeld black holes using the homogeneous approximation and taking charge as a surrogate for angular momentum. We show that there is a minimum of the accretion rate below which mass inflation does not occur, and we derive an analytical …

[Phys. Rev. D 93, 104054] Published Thu May 26, 2016

]]>We examine putative corrections to the Bell operator due to the noncommutativity in the phase space. Starting from a Gaussian squeezed envelope whose time evolution is driven by commutative (standard quantum mechanics) and noncommutative dynamics, respectively, we conclude that although the time-evo…

[Phys. Rev. D 93, 104055] Published Thu May 26, 2016

]]>We investigate the mass-radius relation of the neutron star (NS) with hyperons inside its core by using the Eddington-inspired Born-Infeld (EiBI) theory of gravity. The equation of state of the star is calculated by using the relativistic mean field model under which the standard SU(6) prescription …

[Phys. Rev. D 93, 104056] Published Thu May 26, 2016

]]>Using a method based on the generating functional plus a kind of “correspondence principle”—which acts as a bridge between the electromagnetic and scalar fields—it is shown that the interparticle potential energy concerning a given $D$-dimensional electromagnetic model can be obtained in a simple way …

[Phys. Rev. D 93, 105042] Published Thu May 26, 2016

]]>It is shown that the renormalization group turns to be a symmetry group in a theory initially formulated in a space of scale-dependent functions, i.e., those depending on both the position $x$ and the resolution $a$. Such a theory, earlier described in [1,2], is finite by construction. The space of scal…

[Phys. Rev. D 93, 105043] Published Thu May 26, 2016

]]>Matter-neutrino resonances (MNRs) can drastically modify neutrino flavor evolution in astrophysical environments and may significantly impact nucleosynthesis. Here we further investigate the underlying physics of MNR-type flavor transitions. We provide generalized resonance conditions and make analy…

[Phys. Rev. D 93, 105044] Published Thu May 26, 2016

]]>In this paper the detailed Coleman-Callan-Wess-Zumino procedure for introducing fermions on the world sheet of a string propagating in flat space-time is presented. The theory of nonlinear realizations is used to derive the transformation as well as the interactions of fermionic matter fields under …

[Phys. Rev. D 93, 106007] Published Thu May 26, 2016

]]>In the framework of the relativistic independent quark model, the mass spectra and decay properties of $B$ and ${B}_{s}$ mesons are obtained using a Martin-like potential for the quark confinement. The predicted excited states are in good agreement with the experimental results as well as with the lattice QC…

[Phys. Rev. D 93, 094028] Published Wed May 25, 2016

]]>We study SU(2) gauge theory with two Dirac fermions in the adjoint representation of the gauge group on the lattice. Using clover improved Wilson fermion action with hypercubic truncated stout smearing we perform simulations at larger coupling than before. We measure the evolution of the coupling co…

[Phys. Rev. D 93, 094509] Published Wed May 25, 2016

]]>We report on a scale determination with gradient-flow techniques on the ${N}_{f}=2+1+1$ highly improved staggered quark ensembles generated by the MILC Collaboration. The ensembles include four lattice spacings, ranging from approximately 0.15 to 0.06 fm, and both physical and unphysical values of the quar…

[Phys. Rev. D 93, 094510] Published Wed May 25, 2016

]]>We apply the complex Langevin (CL) method to a chiral random matrix theory (ChRMT) at nonzero chemical potential and study the nearest neighbor spacing (NNS) distribution of the Dirac eigenvalues. The NNS distribution is extracted using an unfolding procedure for the Dirac eigenvalues obtained in th…

[Phys. Rev. D 93, 094511] Published Wed May 25, 2016

]]>We present an analytic description of numerical results for the ghost propagator $G({p}^{2})$ in the minimal Landau gauge on the lattice. The data were produced in the SU(2) case using the largest lattice volumes to date, for $d=2$, 3 and 4 spacetime dimensions. Our proposed form for $G({p}^{2})$ is derived from th…

[Phys. Rev. D 93, 094513] Published Wed May 25, 2016

]]>We propose left-right models based on $SU(3{)}_{C}\otimes SU(M{)}_{L}\otimes SU(N{)}_{R}\otimes U(1{)}_{X}$ gauge symmetry for $(M,N)=(3,3),(2,3)$, and (3,2) that address the 750 GeV diphoton excess recently reported by the LHC. The fermion contents are minimally introduced, and the generation number must match the fundamental color number in …

[Phys. Rev. D 93, 095019] Published Wed May 25, 2016

]]>The production mechanism of a 750 GeV diphoton resonance, either via gluon or photon fusion, can be probed by studying kinematic observables in the diphoton events. We perform a detector study of the two production modes of a hypothetical scalar or tensor diphoton resonance in order to characterize …

[Phys. Rev. D 93, 095020] Published Wed May 25, 2016

]]>Cosmic inflation is commonly assumed to be driven by quantum fields. Quantum mechanics predicts phenomena such as quantum fluctuations and tunneling of the field. Here, we show an example of a quantum interference effect which goes beyond the semiclassical treatment and which may be of relevance in …

[Phys. Rev. D 93, 101302(R)] Published Wed May 25, 2016

]]>We analyze the gravitational dynamics of a classical scalar field coupled to gravity in asymptotically AdS spacetime, which leads to black hole formation on the shortest nonlinear time scale for some initial conditions. We show that the observed collapse cannot be described by the well-known process…

[Phys. Rev. D 93, 103007] Published Wed May 25, 2016

]]>The study of extended test bodies in curved spacetime can capture important aspects of the two-body problem in general relativity. Significant strides in this program are taken in this paper. The results have wide applicability but are particularly well suited for the computation of waveforms relevant for gravitational wave detection, which is currently undergoing an exciting period of experimental discovery.

[Phys. Rev. D 93, 103008] Published Wed May 25, 2016

]]>Dwarf spheroidal galaxies (dSphs) are promising targets for the indirect detection of dark matter through gamma-ray emission due to their proximity, lack of astrophysical backgrounds and high dark matter density. They are often used to place restrictive bounds on the dark matter annihilation cross s…

[Phys. Rev. D 93, 103009] Published Wed May 25, 2016

]]>Conformal higher spin (CHS) field theory, which is a solid part of recent advanced checks of AdS/CFT correspondence, finds applications in cosmology. The hidden sector of weakly interacting CHS fields suggests a resolution of the hierarchy problem in the model of initial conditions for inflationary …

[Phys. Rev. D 93, 103530] Published Wed May 25, 2016

]]>We show that the decay of the inflaton field may be incomplete, while nevertheless successfully reheating the Universe and leaving a stable remnant that accounts for the present dark matter abundance. We note, in particular, that since the mass of the inflaton decay products is field dependent, one …

[Phys. Rev. D 93, 103531] Published Wed May 25, 2016

]]>An ungravity-inspired model is employed to examine the astrophysical parameters of white dwarf stars (WDs) using polytropic and degenerate gas approaches. Based on the observed properties such as mass, radius, and luminosity of selected WDs, namely, Sirius B and $\epsilon $ Reticulum, bounds on the characteri…

[Phys. Rev. D 93, 104046] Published Wed May 25, 2016

]]>Precision timing of highly stable millisecond pulsars is a promising technique for the detection of very low frequency sources of gravitational waves. In any single pulsar, a stochastic gravitational wave signal appears as an additional source of timing noise that can be absorbed by the noise model,…

[Phys. Rev. D 93, 104047] Published Wed May 25, 2016

]]>We develop a gravitational analogue of spin magnetic resonance, called spin gravitational resonance, whereby a gravitational wave interacts with a magnetic field to produce a spin transition. In particular, an external magnetic field separates the energy spin states of a spin-$1/2$ particle, and the p…

[Phys. Rev. D 93, 104048] Published Wed May 25, 2016

]]>We investigate the monogamy of holographic $n$-partite information for a system consisting of $n$ disjoint parallel strips with the same width and separation in AdS and AdS black brane geometries. More precisely, we study the sign of this quantity, e.g., for $n=4$, 5, in various dimensions and for differe…

[Phys. Rev. D 93, 104049] Published Wed May 25, 2016

]]>Coalescing binary black holes are among the primary science targets for second generation ground-based gravitational wave detectors. Reliable gravitational waveform models are central to detection of such systems and subsequent parameter estimation. This paper performs a comprehensive analysis of th…

[Phys. Rev. D 93, 104050] Published Wed May 25, 2016

]]>The 4-parameter exact solution presumably describing the exterior gravitational field of a generic neutron star is presented in a concise explicit form defined by only three potentials. In the equatorial plane, the metric functions of the solution are found to be given by particularly simple express…

[Phys. Rev. D 93, 104051] Published Wed May 25, 2016

]]>The present article can be considered as a complement to the work of Phys. Rev. D **93**, 045002 (2016), where an nonperturbative approach to QED with $x$-electric critical potential steps was developed. In the beginning, we study conditions when in and out spaces of the QED under consideration are unitar…

[Phys. Rev. D 93, 105040] Published Wed May 25, 2016

]]>We present electric-magnetic (EM)-duality formulations for non-Abelian gauge groups with $N=1$ supersymmetry in $D=3+3$ and $5+5$ space-time dimensions. We show that these systems generate self-dual $N=1$ supersymmetric Yang-Mills (SDSYM) theory in $D=2+2$. For a $N=2$ supersymmetric EM-dual system in $D=3+3$, we…

[Phys. Rev. D 93, 105041] Published Wed May 25, 2016

]]>Within the AdS/CFT framework, string theory in “integrable” curved backgrounds may also be described by Bethe ansatz equations. By carefully accounting for the “wrapping” corrections, the authors show that, in the case of a certain background ($A\phantom{\rule{0}{0ex}}d\phantom{\rule{0}{0ex}}{S}_{3}\times {S}^{3}\times {T}^{4}$), Bethe ansatz description can match the string theory calculations.

[Phys. Rev. D 93, 106006] Published Wed May 25, 2016

]]>Uncertainties in modeling neutrino-nucleus interactions are a major contribution to systematic errors in long-baseline neutrino oscillation experiments. Accurate modeling of neutrino interactions requires additional experimental observables such as the Adler angles which carry information about the …

[Phys. Rev. D 93, 093015] Published Tue May 24, 2016

]]>We study parameter degeneracies that can occur in long-baseline neutrino appearance experiments due to nonstandard interactions (NSI) in neutrino propagation. For a single off-diagonal NSI parameter, and neutrino and antineutrino measurements at a single $L/E$, there exists a continuous four-fold dege…

[Phys. Rev. D 93, 093016] Published Tue May 24, 2016

]]>The possible existence of Majorana neutrinos can be tested through the study of processes where the total lepton number $L$ is violated by two units ($\mathrm{\Delta}L=2$). In this work, the production of an on-shell Majorana neutrino with a mass around $\sim 0.2\text{\hspace{0.17em}}\text{\hspace{0.17em}}\mathrm{GeV}$ to a few GeV is studied in $\mathrm{\Delta}L=2$ decays of the ${B}_{c}$ meson…

[Phys. Rev. D 93, 094026] Published Tue May 24, 2016

]]>The Drell-Yan (DY) process of dilepton pair production off nuclei is not affected by final state interactions, energy loss, or absorption. A detailed phenomenological study of this process is thus convenient for investigation of the onset of initial-state effects in proton-nucleus ($pA$) collisions. I…

[Phys. Rev. D 93, 094027] Published Tue May 24, 2016

]]>In this study, we calculated the dependence of thermodynamic observables, namely, pressure, baryon number density, and baryon susceptibility, on the baryon chemical potential ${\mu}_{B}$ through lattice quantum chromodynamics using the canonical approach. We compare the results with those obtained using the …

[Phys. Rev. D 93, 094508] Published Tue May 24, 2016

]]>Tensor network (TN) methods, in particular the matrix product states (MPS) ansatz, have proven to be a useful tool in analyzing the properties of lattice gauge theories. They allow for a very good precision, much better than standard Monte Carlo (MC) techniques for the models that have been studied …

[Phys. Rev. D 93, 094512] Published Tue May 24, 2016

]]>Ward-Green-Takahashi (WGT) identities play a crucial role in hadron physics, e.g. imposing stringent relationships between the kernels of the one- and two-body problems, which must be preserved in any veracious treatment of mesons as bound states. In this connection, one may view the dressed gluon-q…

[Phys. Rev. D 93, 096010] Published Tue May 24, 2016

]]>We show that when a supernova explodes, a nearby pulsar signal goes through a very specific change. The observed period first changes smoothly, then is followed by a sudden change in the time derivative. A stable millisecond pulsar can allow us to measure such an effect. This may improve our measure…

[Phys. Rev. D 93, 103006] Published Tue May 24, 2016

]]>The post-inflationary evolution of inflation-produced magnetic fields, conventional or not, can change dramatically when two fundamental issues are accounted for. The first is causality, which demands that local physical processes can never affect superhorizon perturbations. The second is the nature…

[Phys. Rev. D 93, 103529] Published Tue May 24, 2016

]]>We evaluate the one-loop partition function of conformal gravity in four dimensions around an ${\mathrm{AdS}}_{4}$ background, using the heat kernel techniques. We give expressions for the relevant thermodynamical quantities and compare our results with those from the literature.

[Phys. Rev. D 93, 104043] Published Tue May 24, 2016

]]>It is concluded in the literature that the Ellis wormhole is unstable under small perturbations and would either decay to the Schwarzschild black hole or expand away to infinity. While this deterministic conclusion of instability is correct, we show that the Ellis wormhole reduces to the Schwarzschi…

[Phys. Rev. D 93, 104044] Published Tue May 24, 2016

]]>We show that for a general four derivative theory of gravity, only the holographic entanglement entropy functionals obey the second law at linearized order in perturbations. We also derive bounds on the higher curvature couplings in several examples, demanding the validity of the second law for high…

[Phys. Rev. D 93, 104045] Published Tue May 24, 2016

]]>We analyze the ($3+1$)D equilibrium chiral magnetic effect (CME). We apply derivative expansion to the Wigner transform of the two-point Green function. This technique allows us to express the response of electric current to the external electromagnetic field strength through the momentum space topolo…

[Phys. Rev. D 93, 105036] Published Tue May 24, 2016

]]>By using the Faddeev-Popov quantization procedure, we demonstrate that the radiative effects computed using the first-order and second-order Einstein-Hilbert action for general relativity are the same, provided one can discard tadpoles. In addition, we show that the first-order form of this action c…

[Phys. Rev. D 93, 105037] Published Tue May 24, 2016

]]>We study the question of whether two frames of a given physical theory are equivalent or not in the presence of quantum corrections. By using field theory arguments, we claim that equivalence is broken in the presence of anomalous symmetries in one of the frames. This is particularized to the case o…

[Phys. Rev. D 93, 105038] Published Tue May 24, 2016

]]>We develop a new semiclassical approach, which starts with the density matrix given by the Euclidean time path integral with fixed coinciding end points, and proceed by identifying classical (minimal Euclidean action) path, to be referred to as a *flucton*, which passes through this end point. Fluctua…

[Phys. Rev. D 93, 105039] Published Tue May 24, 2016

]]>We investigate how the dimensionless ratio given by the Chern-Simons diffusion rate ${\mathrm{\Gamma}}_{\mathrm{CS}}$ divided by the product of the entropy density $s$ and temperature $T$ behaves across different kinds of phase transitions in the class of bottom-up nonconformal Einstein-dilaton holographic models originally proposed…

[Phys. Rev. D 93, 106005] Published Tue May 24, 2016

]]>The skewness and the kurtosis of the baryon number distributions are computed within QCD-improved low energy effective models including quantum thermal and density fluctuations. The results are compared with the Beam Energy Scan experiment at RHIC. The theoretical results agree with the experimental…

[Phys. Rev. D 93, 091501(R)] Published Mon May 23, 2016

]]>The larger center-of-mass energy of the Large Hadron Collider Run 2 opens up the possibility of a more detailed study of the quartic vertices of the electroweak gauge bosons. Our goal in this work is to classify all operators possessing quartic interactions among the electroweak gauge bosons that do…

[Phys. Rev. D 93, 093013] Published Mon May 23, 2016

]]>We investigate oscillating solutions of the equation of motion for the Higgs potential. The solutions are described by Jacobian elliptic functions. Classifying the classical solutions, we evaluate a possible parameter space for the initial conditions. To construct the field theory around the oscilla…

[Phys. Rev. D 93, 093014] Published Mon May 23, 2016

]]>Our article is devoted to the study of the rare ${B}_{s}\to \varphi {\ell}^{+}{\ell}^{-}$ decay where $\ell =\mu $, $\tau $. We compute the relevant form factors in the framework of the covariant quark model with infrared confinement in the full kinematical momentum transfer region. The calculated form factors are used to evaluate branching fract…

[Phys. Rev. D 93, 094022] Published Mon May 23, 2016

]]>Motivated by recent results from the LHCb, *BABAR*, and Belle Collaborations on $B\to {D}^{(*)}{\ell}^{-}{\overline{\nu}}_{\ell}$ decays, which significantly deviate from the Standard Model and hint at the possible new physics beyond the Standard Model, we probe the $R$-parity violating supersymmetric effects in ${B}_{c}^{-}\to {\ell}^{-}{\overline{\nu}}_{\ell}$ and $B\to {D}^{(*)}{\ell}^{-}{\overline{\nu}}_{\ell}$ de…

[Phys. Rev. D 93, 094023] Published Mon May 23, 2016

]]>The state ${\chi}_{c0}(3915)$ has recently been demoted by the Particle Data Group from its previous status as the conventional $c\overline{c}$ ${2}^{3}{P}_{0}$ state, largely due to the absence of expected $D\overline{D}$ decays. We propose that ${\chi}_{c0}(3915)$ is actually the lightest $c\overline{c}s\overline{s}$ state, and calculate the spectrum of such states using th…

[Phys. Rev. D 93, 094024] Published Mon May 23, 2016

]]>For the flavor-singlet heavy-quark system of charmonia in the pseudoscalar [${\eta}_{c}(1S)$] channel, we calculate the elastic (EFF) and transition form factors (TFFs) [${\eta}_{c}(1S)\to \gamma {\gamma}^{*}$] for a wide range of photon momentum transfer squared (${Q}^{2}$). The framework for this analysis is provided by a symmetry-preserving …

[Phys. Rev. D 93, 094025] Published Mon May 23, 2016

]]>We explore several perturbative scenarios in which the diphoton excess at 750 GeV can potentially be explained: a scalar singlet, a two Higgs doublet model (2HDM), a 2HDM with an extra singlet, and the decays of heavier resonances, both vector and scalar. We draw the following conclusions: (i) due t…

[Phys. Rev. D 93, 095015] Published Mon May 23, 2016

]]>In this paper, we revisit a visible heavy QCD axion model in light of the recent reports on the 750 GeV diphoton resonance by the ATLAS and CMS experiments. In this model, the axion is made heavy with the help of the mirror copied sector of the Standard Model, while the successful Peccei-Quinn mecha…

[Phys. Rev. D 93, 095016] Published Mon May 23, 2016

]]>In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve $CP$ symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant $CP$-violating effects on the Higgs bosons. The experimentally observed Higgs boson, which should be $CP$ …

[Phys. Rev. D 93, 095017] Published Mon May 23, 2016

]]>We scrutinize the evidences recently reported by the ATLAS and CMS collaborations for compatible 750 GeV resonances which appear in the diphoton channels of the two experiments in both the 8 and 13 TeV data sets. Similar resonances in diboson, dilepton, dijet, and $t\overline{t}$ final states are instead not de…

[Phys. Rev. D 93, 095018] Published Mon May 23, 2016

]]>We consider the propagation of a chiral spin-$3/2$ particle in a background medium using the thermal field theory (TFT) method, in analogy to the cases of a spin-$1/2$ fermion (e.g., a neutrino) and the photon. We present a systematic decomposition of the thermal self-energy, from which the dispersion r…

[Phys. Rev. D 93, 096009] Published Mon May 23, 2016

]]>We study the equilibration of a class of far-from-equilibrium strongly interacting systems using gauge-gravity duality. The systems we analyze are $2+1$ dimensional and have a four-dimensional gravitational dual. A prototype example of a system we analyze is the equilibration of a two-dimensional flui…

[Phys. Rev. D 93, 101902(R)] Published Mon May 23, 2016

]]>Future space-borne gravitational wave detectors will require a precise definition of calibration signals to ensure the achievement of their design sensitivity. The careful design of the test signals plays a key role in the correct understanding and characterization of these instruments. In that sens…

[Phys. Rev. D 93, 102004] Published Mon May 23, 2016

]]>In the present-day cosmic ray data, the strongest indication of anisotropy of the ultrahigh energy cosmic rays is the 20-degree hotspot observed by the Telescope Array with the statistical significance of $3.4\sigma $. In this work, we study the possibility of detecting such a spot by space-based all-sky ob…

[Phys. Rev. D 93, 103005] Published Mon May 23, 2016

]]>Measuring the absolute scale of the neutrino masses is one of the most exciting opportunities available with near-term cosmological data sets. Two quantities that are sensitive to neutrino mass, scale-dependent halo bias $b(k)$ and the linear growth parameter $f(k)$ inferred from redshift-space distorti…

[Phys. Rev. D 93, 103526] Published Mon May 23, 2016

]]>The relaxion scenario presents an intriguing extension of the standard model in which the particle introduced to solve to the strong $CP$ problem, the axion, also achieves the dynamical relaxation of the Higgs boson mass term. In this work we complete this framework by proposing a scenario of inflatio…

[Phys. Rev. D 93, 103527] Published Mon May 23, 2016

]]>The usual fluid equations describing the large-scale evolution of mass density in the universe can be written as local in the density, velocity divergence, and velocity potential fields. As a result, the perturbative expansion in small density fluctuations, usually written in terms of convolutions i…

[Phys. Rev. D 93, 103528] Published Mon May 23, 2016

]]>We consider Detweiler’s redshift variable $z$ for a nonspinning mass ${m}_{1}$ in circular motion (with orbital frequency $\mathrm{\Omega}$) around a nonspinning mass ${m}_{2}$. We show how the combination of effective-one-body (EOB) theory with the first law of binary dynamics allows one to derive a simple, exact expression for t…

[Phys. Rev. D 93, 104040] Published Mon May 23, 2016

]]>We exploit the near-horizon conformal symmetry of rapidly spinning black holes to determine universal properties of their magnetospheres. Analytic expressions are derived for the limiting form of the magnetosphere in the near-horizon region. The symmetry is shown to imply that the black hole Meissne…

[Phys. Rev. D 93, 104041] Published Mon May 23, 2016

]]>We consider a toy model for the relativistic collapse of a homogeneous perfect fluid that takes into account an equation of state for high density matter, in the form of a Hagedorn phase, and semiclassical corrections in the strong field. We show that collapse reaches a critical minimum size and the…

[Phys. Rev. D 93, 104042] Published Mon May 23, 2016

]]>In the context of a broad class of quenched models, we derive a generalized differential form of the Kadanoff-Baym (KB) ansatz which relates the out of equilibrium correlated and spectral Green’s functions. This relation holds at any time both before the quench (when it coincides with the fluctuatio…

[Phys. Rev. D 93, 105034] Published Mon May 23, 2016

]]>A scheme is presented to cancel out topologically unfactorized infrared divergences in the inclusive production of heavy quarkonia, which affect the nonrelativistic QCD (NRQCD) factorization of these processes. Heavy quarkonia are defined as resonance states of QCD instead of a color-singlet heavy q…

[Phys. Rev. D 93, 105035] Published Mon May 23, 2016

]]>The branching fraction of the decay ${B}_{s}^{0}\to {D}_{s}^{(*)+}{D}_{s}^{(*)-}$ is measured using $pp$ collision data corresponding to an integrated luminosity of $1.0\text{\hspace{0.17em}}\text{\hspace{0.17em}}{\mathrm{fb}}^{-1}$, collected using the LHCb detector at a center-of-mass energy of 7 TeV. It is found to be $\mathcal{B}({B}_{s}^{0}\to {D}_{s}^{(*)+}{D}_{s}^{(*)-})=(3.05\pm 0.10\pm 0.20\pm 0.34)\%$, where the uncertaintie…

[Phys. Rev. D 93, 092008] Published Fri May 20, 2016

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