Thu·Mar 23, 2017Thursday·March 23, 2017

1. 01*

   Bounds on the rise of total cross section from LHC7 and LHC8 data

   D.A. Fagundes🇧🇷 · M.J. Menon🇧🇷 · P.V.R.G. Silva🇧🇷

   Recent measurements of the proton-proton total cross section ${\sigma }_{tot}$ at 7 and 8 TeV by the TOTEM and ATLAS Collaborations are characterized by some discrepant values: the TOTEM data suggest a rise of the cross section with the energy faster than the ATLAS data. Attempting to quantify these different behaviors, we develop new analytical fits to ${\sigma }_{tot}$ and $\rho$ data from $pp$ and $\bar{p}p$ scattering in the energy region 5 GeV - 8 TeV. The dataset comprises all the accelerator data below 7 TeV and we consider three ensembles by adding: either only the TOTEM data (T), or only the ATLAS data (A), or both sets (T+A). For the purposes, we use our previous RRPL$\gamma$ parametrization for ${\sigma }_{tot}(s)$, consisting of two Reggeons (RR), one critical Pomeron (P) and a leading log-raised-to-gamma (L$\gamma$) contribution (with $\gamma$ as a free fit parameter), analytically connected to $\rho (s)$ through singly-subtracted derivative dispersion relations and energy scale fixed at the physical threshold. The data reductions with ensembles T and A present good agreement with the experimental data analyzed and cannot be distinguished on statistical grounds. The quality of the fit is not as good with ensemble T+A. The fit results provide $\gamma \sim 2.3\pm 0.1$ (T), $2.0\pm 0.2$ (A), $2.1\pm 0.2$ (T+A), with ${\chi }^2/\mathrm{DOF}\sim 1.07$ (T), $1.09$ (A), $1.14$ (T+A), suggesting extrema bounds for $\gamma$ given by 1.8 and 2.4. Fits with $\gamma =2$ (fixed) are also developed and discussed.

   hep-phhep-exNPA(2017)·17 citations
2. 02*

   The Minimal GUT with Inflaton and Dark Matter Unification

   Heng-Yu Chen🇺🇸 · Ilia Gogoladze🇺🇸 · Shan Hu🇨🇳 · Tianjun Li🇨🇳 · Lina Wu🇨🇳

   Giving up the solutions to the fine-tuning problems, we propose the non-supersymmetric flipped $SU(5)\times U(1{)}_X$ model based on the minimal particle content principle, which can be constructed from the four-dimensional $SO(10)$ models, five-dimensional orbifold $SO(10)$ models, and local F-theory $SO(10)$ models. To achieve gauge coupling unification, we introduce one pair of vector-like fermions, which form complete $SU(5)\times U(1{)}_X$ representation. Proton lifetime is around $5\times 10^{35}$ years, neutrino masses and mixing can be explained via seesaw mechanism, baryon asymmetry can be generated via leptogenesis, and vacuum stability problem can be solved as well. In particular, we propose that inflaton and dark matter particle can be unified to a real scalar field with $Z_2$ symmetry, which is not an axion and does not have the non-minimal coupling to gravity. Such kind of scenarios can be applied to the generic scalar dark matter models. Also, we find that the vector-like particle corrections to the $B_s^0$ masses can be about 6.6%, while their corrections to the $K^0$ and $B_d^0$ masses are negligible.

   hep-phhep-exhep-thEPJC(2018)·25 citations
3. 03*

   Perturbative evolution: a different approach at small x

   A Donnachie🇬🇧 · P V Landshoff🇬🇧

   We propose an approach to DGLAP evolution at small x that circumvents the usual problem that a perturbation expansion is not valid there. The data for the charm structure function are important to motivate the method, and it describes them much more successfully than the conventional approach.

   hep-phhep-exEPJC(2017)·3 citations
4. 04*

   $x{F}_3(x,Q^2)$ Structure Function and Gross-Llewellyn Smith Sum Rule with Nuclear Effect and Higher Twist Correction

   N. M. Nath🇮🇳 · A. Mukharjee🇮🇳 · M. K. Das🇮🇳 · J. K. Sarma🇮🇳

   We present an analysis of the $x{F}_3(x,Q^2)$ structure function and Gross-Llewellyn Smith(GLS) sum rule taking into account the nuclear effects and higher twist correction. This analysis is based on the results presented in "N. M. Nath et al., Indian J Phys 90(1), 117 (2016)". The corrections due to nuclear effects predicted in several earlier analysis are incorporated to our results of $x{F}_3(x,Q^2)$ structure function and GLS sum rule for free nucleon, corrected upto next-next-to-leading order (NNLO) perturbative order and calculate the nuclear structure function as well as sum rule for nuclei. In addition, by means of a simple model we have extracted the higher twist contributions to the non-singlet structure function $x{F}_3(x,Q^2)$ and GLS sum rule in NNLO perturbative orders and then incorporated them to our results. Our NNLO results along with nuclear effect and higher twist corrections are observed to be compatible with corresponding experimental data and other phenomenological analysis.

   hep-phCommun.Theor.Phys.(2016)·3 citations
5. 05*

   Symmetric and Asymmetric Reheating

   Edward Hardy🇮🇹 · James Unwin🇺🇸

   We study models in which the inflaton is coupled to two otherwise decoupled sectors, and the effect of preheating and related processes on their energy densities during the evolution of the universe. Over most of parameter space, preheating is not disrupted by the presence of extra sectors, and even comparatively weakly coupled sectors can get an order 1 fraction of the total energy at this time. If two sectors are both preheated, the high number densities could also lead to inflaton mediated thermalisation. If only one sector is preheated, Bose enhancement of the late time inflaton decays may cause significant deviations from the perturbative prediction for their relative reheat temperatures. Meanwhile, in Non-Oscillatory inflation models resonant effects can result in exponentially large final temperature differences between sectors that have similar couplings to the inflaton. Asymmetric reheating is potentially relevant for a range of beyond the Standard Model physics scenarios. We show that in dark matter freeze-in models, hidden sector temperatures a factor of 10 below that of the visible sector are typically needed for the relic abundance to be set solely by freeze-in dynamics.

   hep-phJHEP(2017)·39 citations
6. 06*

   Constraining fine tuning in Composite Higgs Models with partially composite leptons

   James Barnard🇦🇺 · Daniel Murnane🇦🇺 · Martin White🇦🇺 · Anthony G. Williams🇦🇺

   Minimal Composite Higgs Models (MCHM) have long provided a solution to the hierarchy problem of the Standard Model, yet suffer from various sources of fine tuning that are becoming increasingly problematic with the lack of new physics observations at the LHC. We develop a new fine tuning measure that accurately counts each contribution to fine tuning (single, double, triple, etc) that can occur in a theory with $n_p$ parameters, that must reproduce $n_o$ observables. We then use a novel scanning procedure to perform a comprehensive study of three different two-site, 4D, $SO(5)\to SO(4)$ MCHMs with all third generation fermions included, distinguished by the choice of the lepton embeddings. These are the MCHM${}_{\text{5-5-5}}^{\text{5-5-5}}$, MCHM${}_{\text{14-14-10}}^{\text{5-5-5}}$ and MCHM${}_{\text{14-1-10}}^{\text{5-5-5}}$, where MCHM${}_{l-\tau -\nu }^{q-t-b}$ has the lepton doublet partner in representation $l$, tau partner in representation $\tau$, and so on. We find that embedding at least one massive lepton in the symmetric $\text{14}$ of $SO(5)$ reduces the tuning for the case of low top partner masses (in line with previous results), but that this is balanced against the increased complexity of the model when one properly accounts for all sources of fine tuning. We study both the current relative fine-tuning of each scenario, and the future prospects. Noting that the different scenarios behave differently with respect to future improvements in collider measurements, we find that the MCHM${}_{\text{14-1-10}}^{\text{5-5-5}}$ enjoys a relatively low increase in fine tuning even for a future lower bound on the top partner masses of 3.4 TeV (or equivalently a maximum Higgs-fermion or Higgs-gluon coupling deviation of 2%).

   hep-phJHEP(2017)·10 citations
7. 07*

   The non-ordinary Regge behavior of the K*0(800) or Kappa-meson versus the ordinary K*0(1430)

   J.R. Pelaez🇪🇸 · A. Rodas (U. Complutense de Madrid)🇪🇸

   The Regge trajectory of an elastic resonance can be calculated from dispersion theory, instead of fitted phenomenologically, using only its pole parameters as input. This also provides a correct treatment of resonance widths in Regge trajectories, essential for very wide resonances. In this work we first calculate the K*0(1430) Regge trajectory, finding the ordinary almost real and linear behavior, typical of quark-antiquark resonances. In contrast, for the K*0(800) meson, the resulting Regge trajectory is non-linear and has a much smaller slope than ordinary resonances, being remarkably similar to that of the f0(500) or sigma meson. The slope of these unusual Regge trajectories seems to scale with the meson masses rather than with scales typical of quark degrees of freedom. We also calculate the range of the interaction responsible for the formation of these resonances. Our results strongly support a non-ordinary, predominantly meson-meson-like, interpretation for the lightest strange and non-strange resonances.

   hep-phEPJC(2017)·24 citations
8. 08*

   Statistical sensitivity on right-handed currents in presence of eV scale sterile neutrinos with KATRIN

   Nicholas M. N. Steinbrink🇩🇪 · Ferenc Glück🇩🇪 · Florian Heizmann🇩🇪 · Marco Kleesiek🇩🇪 · Kathrin Valerius🇩🇪 · Christian Weinheimer🇩🇪 · Steen Hannestad🇩🇰

   The KATRIN experiment aims to determine the absolute neutrino mass by measuring the endpoint region of the tritium $\beta$ spectrum. As a large-scale experiment with a sharp energy resolution, high source luminosity and low background it may also be capable of testing certain theories of neutrino interactions beyond the standard model (SM). An example of a non-SM interaction are right-handed currents mediated by right-handed W bosons in the left-right symmetric model (LRSM). In this extension of the SM, an additional SU(2)${}_{\mathrm{R}}$ symmetry in the high-energy limit is introduced, which naturally includes sterile neutrinos and predicts the seesaw mechanism. In tritium $\beta$ decay, this leads to an additional term from interference between left- and right-handed interactions, which enhances or suppresses certain regions near the endpoint of the beta spectrum. In this work, the sensitivity of KATRIN to right-handed currents is estimated for the scenario of a light sterile neutrino with a mass of some eV. This has been performed with a Bayesian analysis using Markov Chain Monte Carlo (MCMC). The simulations show that in principle KATRIN is able to set sterile neutrino mass-dependent limits on the interference strength. Thereby, the sensitivity is significantly increased if the $Q$ value of the $\beta$ decay can be sufficiently constrained. However, the sensitivity is not high enough to improve current upper limits from right-handed W boson searches at the LHC.

   hep-phJCAP(2017)·8 citations
9. 09*

   The transverse structure of the pion in momentum space inspired by the AdS/QCD correspondence

   Alessandro Bacchetta🇮🇹 · Sabrina Cotogno🇳🇱 · Barbara Pasquini🇮🇹

   We study the internal structure of the pion using a model inspired by the AdS/QCD correspondence. The holographic approach provides the light-front wave function (LFWF) for the leading Fock state component of the pion. We adopt two different forms for the LFWF derived from the AdS/QCD soft-wall model, with free parameters fitted to the available experimental information on the pion electromagnetic form factor and the leading-twist parton distribution function. The intrinsic scale of the model is taken as an additional fit parameter. Within this framework, we provide predictions for the unpolarized transverse momentum dependent parton distribution (TMD), and discuss its property both at the scale of the model and after TMD evolution to higher scales that are relevant for upcoming experimental measurements.

   hep-phPLB(2017)·47 citations
10. 10*

    One loop effects of natural SUSY in indirect searches for SUSY particles at the ILC

    M. Jimbo🇯🇵 · T. Kon🇯🇵 · Y. Kouda🇯🇵 · M. Ichikawa🇯🇵 · Y. Kurihara🇯🇵 · T. Ishikawa🇯🇵 · K. Kato🇯🇵 · M. Kuroda🇯🇵

    We have found the possible region of parameters of the minimal supersymmetric standard model (MSSM) within the bounds from the experimental results of the Higgs mass, the rare decay mode of $b$-quark, the muon $g-2$, the dark matter abundance, and the direct searches for the lighter stop (i.e., one of the supersymmetric partners of top quark) at the LHC. We present numerical results of calculations for the one loop effects of supersymmetric particles in the processes of ${\tau }^{+}{\tau }^{-}$, $b\overline{b}$, $t\overline{t}$, and $Zh$ production at the ILC by using benchmark points within the possible region of the MSSM parameters.

    hep-pheConf·2 citations
11. 11*

    Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules

    Hua-Xing Chen🇨🇳 · Qiang Mao🇨🇳 · Wei Chen🇨🇦 · Atsushi Hosaka🇯🇵 · Xiang Liu🇨🇳 · Shi-Lin Zhu🇨🇳

    We study decay properties of the $P$-wave charmed baryons using the method of light-cone QCD sum rules, including the $S$-wave decays of the flavor ${\bar{3}}_F$ $P$-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson ($\pi$ or $K$) or a vector meson ($\rho$ or $K^{\ast }$), and the $S$-wave decays of the flavor $6_F$ $P$-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson ($\pi$ or $K$). We study both two-body and three-body decays which are kinematically allowed. We find two mixing solutions from internal $\rho$- and $\lambda$-mode excitations, which can well describe both masses and decay properties of the ${\Lambda }_c(2595)$, ${\Lambda }_c(2625)$, ${\Xi }_c(2790)$ and ${\Xi }_c(2815)$. We also discuss the possible interpretations of $P$-wave charmed baryons for the ${\Sigma }_c(2800)$, ${\Xi }_c(2930)$, ${\Xi }_c(2980)$, and the recently observed ${\Omega }_c(3000)$, ${\Omega }_c(3050)$, ${\Omega }_c(3066)$, ${\Omega }_c(3090)$, and ${\Omega }_c(3119)$.

    hep-phhep-exhep-latPRD(2017)·126 citations
12. 12*

    A brief discussion on the chiral magnetic effect

    Bin Wang🇨🇳

    The prerequisite of the chiral magnetic effect is the existence of net chiral charge in the quark gluon plasma (QGP). If we assume the quarks and anti-quarks contribute equally to the net chiral charge, the CME will induce a flow of the quark chemical potential and will cause the QGP having three distinct layers along the strong magnetic field characterised by distinctive compositions of quark chemical potentials. This phenomenon may bring new observable outcomes and help us test the existence of CME.

    hep-ph0 citations
13. 13*

    Phenomenological Comparison of Models with Extended Higgs Sectors

    M. Muhlleitner🇩🇪 · M. Sampaio🇵🇹 · R. Santos🇵🇹 · J. Wittbrodt🇩🇪

    Beyond the Standard Model (SM) extensions usually include extended Higgs sectors. Models with singlet or doublet fields are the simplest ones that are compatible with the $\rho$ parameter constraint. The discovery of new non-SM Higgs bosons and the identification of the underlying model requires dedicated Higgs properties analyses. In this paper, we compare several Higgs sectors featuring 3 CP-even neutral Higgs bosons that are also motivated by their simplicity and their capability to solve some of the flaws of the SM. They are: the SM extended by a complex singlet field (CxSM), the singlet extension of the 2-Higgs-Doublet Model (N2HDM), and the Next-to-Minimal Supersymmetric SM extension (NMSSM). In addition, we analyse the CP-violating 2-Higgs-Doublet Model (C2HDM), which provides 3 neutral Higgs bosons with a pseudoscalar admixture. This allows us to compare the effects of singlet and pseudoscalar admixtures. Through dedicated scans of the allowed parameter space of the models, we analyse the phenomenologically viable scenarios from the view point of the SM-like Higgs boson and of the signal rates of the non-SM-like Higgs bosons to be found. In particular, we analyse the effect of singlet/pseudoscalar admixture, and the potential to differentiate these models in the near future. This is supported by a study of couplings sums of the Higgs bosons to massive gauge bosons and to fermions, where we identify features that allow us to distinguish the models, in particular when only part of the Higgs spectrum is discovered. Our results can be taken as guidelines for future LHC data analyses, by the ATLAS and CMS experiments, to identify specific benchmark points aimed at revealing the underlying model.

    hep-phJHEP(2017)·100 citations
14. 14*

    LHC Signals for Singlet Neutrinos from a Natural Warped Seesaw (II)

    Kaustubh Agashe🇺🇸 · Peizhi Du🇺🇸 · Sungwoo Hong🇺🇸

    A natural seesaw mechanism for obtaining the observed size of SM neutrino masses can arise in a warped extra dimensional/composite Higgs framework. In a previous paper, we initiated the study of signals at the LHC for the associated $\sim$ TeV mass SM singlet neutrinos, within a canonical model of $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ (LR) symmetry in the composite sector, as motivated by consistency with the EW precision tests. Here, we investigate LHC signals in a different region of parameter space for the same model, where production of singlet neutrinos can occur from particles beyond those in usual LR models. Specifically, we assume that composite $(B-L)$ gauge boson is lighter than all the others in the EW sector. We show that the composite $(B-L)$ gauge boson can acquire a significant coupling to light quarks simply via mixing with elementary hypercharge gauge boson. Thus, the singlet neutrino can be pair-produced via decays of $(B-L)$ gauge boson, without a charged current counterpart. Furthermore, there is no decay for $(B-L)$ gauge boson directly into dibosons, unlike for the usual case of $W_R^{\pm }$ and $Z^{\prime }$. Independently of the above extension of the EW sector, we analyze production of singlet neutrinos in decays of composite partners of $SU(2{)}_L$ doublet leptons, which are absent in the usual LR models. In turn, these doublet leptons can be produced in composite $W_L$ decays. We show that $4-5\sigma$ signal can be achieved for both cases described above for the following spectrum with 3000 fb${}^{-1}$ luminosity: $2-2.5$ TeV composite gauge bosons, $1$ TeV composite doublet lepton (for the second case) and $500-750$ GeV singlet neutrino.

    hep-phPRD(2018)·11 citations
15. 15*

    Mesons and Resonances in Relativistic Quantum Mechanics For the Lorentz-Scalar Potential

    Mikhail N. Sergeenko🇧🇾

    Mesons as bound states of quark and anti-quark in the framework of a relativistic potential model are studied. Interaction of constituents in bound state is described by the Lorentz-scalar QCD inspired funnel-type potential with the coordinate dependent strong coupling, {\alpha}S(r). Lagrangian relativistic mechanics is used to derive the main dynamic two particle equation of motion. On this basis, relativistic two body wave equation is derived. Solution of the equation for the system in the form of a standing wave is obtained. Two exact asymptotic expressions for the meson squared mass are obtained and used to derive the meson universal mass formula. Light and heavy meson mass spectra are calculated.

    hep-ph3 citations
16. 16*

    Very narrow excited ${\Omega }_c$ baryons

    Marek Karliner🇮🇱 · Jonathan L. Rosner🇺🇸

    Recently LHCb reported the discovery of five extremely narrow excited ${\Omega }_c$ baryons decaying into ${\Xi }_c^{+}{K}^{-}$. We interpret these baryons as bound states of a $c$-quark and a $P$-wave $ss$-diquark. For such a system there are exactly five possible combinations of spin and orbital angular momentum. The narrowness of the states could be a signal that it is hard to pull apart the two $s$-quarks in a diquark. We predict two of spin 1/2, two of spin 3/2, and one of spin 5/2, all with negative parity. Of the five states two can decay in $S$-wave and three can decay in $D$-wave. Some of the $D$-wave states might be narrower than the $S$-wave states. We discuss relations among the five masses expected in the quark model and the likely spin assignments and compare with the data. A similar pattern is expected for negative-parity excited ${\Omega }_b$ states. An alternative interpretation is noted in which the heaviest two states are $2S$ excitations with $J^P=1/2^{+}$ and $3/2^{+}$, while the lightest three are those with $J^P=3/2^{-},3/2^{-},5/2^{-}$ expected to decay via $D$-waves. In this case we expect $J^P=1/2^{-}$ ${\Omega }_c$ states around 2904 and 2978 MeV.

    hep-phhep-exPRD(2017)·117 citations
17. 17*

    An Ultralight Axion in Supersymmetry and Strings and Cosmology at Small Scales

    James Halverson🇺🇸 · Cody Long🇺🇸 · Pran Nath🇺🇸

    Dynamical mechanisms to generate an ultralight axion of mass $\sim 10^{-21}-10^{-22}$ eV in supergravity and strings are discussed. An ultralight particle of this mass provides a candidate for dark matter that may play a role for cosmology at scales $10\mathrm{kpc}$ or less. An effective operator approach for the axion mass provides a general framework for models of ultralight axions, and in one case recovers the scale $10^{-21}-10^{-22}$ eV as the electroweak scale times the square of the hierarchy with an $O(1)$ Wilson coefficient. We discuss several classes of models realizing this framework where an ultralight axion of the necessary size can be generated. In one class of supersymmetric models an ultralight axion is generated by instanton like effects. In the second class higher dimensional operators involving couplings of Higgs, standard model singlets, and axion fields naturally lead to an ultralight axion. Further, for the class of models considered the hierarchy between the ultralight scale and the weak scale is maintained. We also discuss the generation of an ultralight scale within string based models. Here it is shown that in the single modulus KKLT moduli stabilization scheme an ultralight axion would require an ultra-low weak scale. However, within the Large Volume Scenario, the desired hierarchy between the axion scale and the weak scale is achieved. A general analysis of couplings of Higgs fields to instantons within the string framework is discussed and it is shown that the condition necessary for achieving such couplings is the existence of vector-like zero modes of the instanton. Some of the phenomenological aspects of these models are also discussed.

    hep-phastro-ph.COastro-ph.HEgr-qc+1PRD(2017)·82 citations
18. 18*

    Evaporation and scattering of momentum- and velocity-dependent dark matter in the Sun

    Giorgio Busoni🇦🇺 · Andrea De Simone🇮🇹 · Pat Scott🇬🇧 · Aaron C. Vincent🇬🇧

    Dark matter with momentum- or velocity-dependent interactions with nuclei has shown significant promise for explaining the so-called Solar Abundance Problem, a longstanding discrepancy between solar spectroscopy and helioseismology. The best-fit models are all rather light, typically with masses in the range of 3-5 GeV. This is exactly the mass range where dark matter evaporation from the Sun can be important, but to date no detailed calculation of the evaporation of such models has been performed. Here we carry out this calculation, for the first time including arbitrary velocity- and momentum-dependent interactions, thermal effects, and a completely general treatment valid from the optically thin limit all the way through to the optically thick regime. We find that depending on the dark matter mass, interaction strength and type, the mass below which evaporation is relevant can vary from 1 to 4 GeV. This has the effect of weakening some of the better-fitting solutions to the Solar Abundance Problem, but also improving a number of others. As a by-product, we also provide an improved derivation of the capture rate that takes into account thermal and optical depth effects, allowing the standard result to be smoothly matched to the well-known saturation limit.

    hep-phastro-ph.COJCAP(2017)·71 citations
19. 19*

    Conformal Dilatonic Cosmology

    Meir Shimon🇮🇱

    Gravitation and the standard model of particle physics are incorporated within a single conformal scalar-tensor theory, where the scalar field is complex. The Higgs field has a dynamical expectation value, as has the Planck mass, but the relative strengths of the fundamental interactions are unchanged. Initial cosmic singularity and the horizon problem are avoided, and spatial flatness is natural. There were no primordial phase transitions; consequently, no topological defects were produced. Quantum excitations of the dilaton phase induced a slightly red-tilted spectrum of gaussian and adiabatic scalar perturbations, but no analogous primordial gravitational waves were generated. Subsequent cosmological epochs through nucleosynthesis are as in standard cosmology. A generalized Schwarzschild-de Sitter metric, augmented with a linear potential term, describes the exterior of stars and galaxies, such that there is no need for dark matter on galactic scales.

    ↳ gr-qcastro-ph.COhep-phhep-th1 citation
20. 20*

    Prospects for Higgs CP property measurements at the LHC - Talk presented at the International Workshop on Future Linear Colliders (LCWS2016), Morioka, Japan, 5-9 December 2016. C16-12-05.4

    Xin Chen🇨🇳

    This document is prepared for the LCWS2016 conference proceedings. It reviews the current results on the Higgs CP property measurements from both ATLAS and CMS experiments in the Higgs to diboson decays, and in the Vector Boson Fusion production of Higgs via the ditau decay channel. The projected sensitivity of the ditau signal in HL-LHC is briefly discussed. Finally, it gives the prospects for the CP measurement in the Higgs to ditau decay with the tau substructure developments at both collaborations.

    ↳ hep-exhep-ph1 citation
21. 21*

    Prospects of LHC Higgs Physics at the end of Run III - Talk presented at the International Workshop on Future Linear Colliders (LCWS2016), Morioka, Japan, 5-9 December 2016. C16-12-05.4

    Xin Chen🇨🇳

    The document is prepared for the LCWS2016 conference proceedings. The expected status of Higgs physics at the end of Run-3 is presented. The current Run-2 status is briefly reviewed, and the expected Higgs reach after the HL-LHC period is also summarized for some channels.

    ↳ hep-exhep-ph2 citations
22. 22*

    Gravitational Wave Oscillations in Bigravity

    Kevin Max🇮🇹 · Moritz Platscher🇩🇪 · Juri Smirnov🇮🇹

    We derive consistent equations for gravitational wave oscillations in bigravity. In this framework a second dynamical tensor field is introduced in addition to General Relativity and coupled such that one massless and one massive linear combination arise. Only one of the two tensors is the physical metric coupling to matter, and thus the basis in which gravitational waves propagate is different from the basis where the wave is produced and detected. Therefore, one should expect -- in analogy to neutrino oscillations -- to observe an oscillatory behavior. We show how this behavior arises explicitly, discuss phenomenological implications and present new limits on the graviton parameter space in bigravity.

    ↳ gr-qchep-exhep-phPRL(2017)·65 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.