Wed·Jan 11, 2017Wednesday·January 11, 2017

1. 01*

   Two-particle twist-3 distribution amplitudes of the pion and kaon in the light-front quark model

   Ho-Meoyng Choi (Kyungpook National Univ.)🇰🇷 · Chueng-Ryong Ji (North Carolina State Unvi.)🇺🇸

   We investigate the two-particle twist-3 distribution amplitudes (DAs) of the pseudoscalar mesons, in particular pseudoscalar (${\varphi }_{3;M}^P(x)$) and pseudotensor (${\varphi }_{3;M}^{\sigma }(x)$) DAs of the pion and kaon, in the light-front quark model based on the variational principle. We find that the behavior of the conformal symmetry in each meson distribution amplitude depends on the chiral limit characteristics of the light-front trial wave function taken in the variational principle. We specifically take the two different light-front trial wave functions, Gaussian vs. power-law type, and discuss their characteristics of the conformal symmetry in the chiral symmetry limit as well as their resulting degree of the conformal symmetry breaking in ${\varphi }_{3;M}^P(x)$ and ${\varphi }_{3;M}^{\sigma }(x)$ depending on the trial wave function taken in the computation. We present numerical results of transverse moments, Gegenbauer-moments and $\xi$-moments and compare them with other available model estimates. The SU(3) flavor-symmetry breaking effect is also quantified with the numerical computation.

   hep-phPRD(2017)·33 citations
2. 02*

   Hunting for Heavy Majorana Neutrinos with Lepton Number Violating Signatures at LHC

   Chao Guo (1)🇨🇳 · Shu-Yuan Guo (1)🇨🇳 · Zhi-Long Han (1)🇨🇳 · Bin Li (1)🇨🇳 · Yi Liao (1,2,3) ((1) Nankai U., (2) CAS-ITP, (3) CHEP, Peking U.)🇨🇳

   The neutrinophilic two-Higgs-doublet model ($\nu$2HDM) provides a natural way to generate tiny neutrino mass from interactions with the new doublet scalar ${\Phi }_{\nu }$ ($H^{\pm },H,A$) and singlet neutrinos $N_R$ of TeV scale. In this paper, we perform detailed simulations for the lepton number violating (LNV) signatures at LHC arising from cascade decays of the new scalars and neutrinos with the mass order $m_{N_R}<m_{{\Phi }_{\nu }}$. Under constraints from lepton flavor violating processes and direct collider searches, their decay properties are explored and lead to three types of LNV signatures: $2{\ell }^{\pm }4j+{\cancel{E}}_T$, $3{\ell }^{\pm }4j+{\cancel{E}}_T$, and $3{\ell }^{\pm }{\ell }^{\mp }4j$. We find that the same-sign trilepton signature $3{\ell }^{\pm }4j+{\cancel{E}}_T$ is quite unique and is the most promising discovery channel at the high-luminosity LHC. Our analysis also yields the $95\%$ C.L. exclusion limits in the plane of the ${\Phi }_{\nu }$ and $N_R$ masses at 13 (14) TeV LHC with an integrated luminosity of 100~(3000)/fb.

   hep-phJHEP(2017)·29 citations
3. 03*

   Euclidean to Minkowski Bethe-Salpeter amplitude and observables

   J. Carbonell🇫🇷 · T. Frederico🇧🇷 · V. A. Karmanov🇷🇺

   We propose a method to reconstruct the Bethe-Salpeter amplitude in Minkowski space given the Euclidean Bethe-Salpeter amplitude -- or alternatively the Light-Front wave function -- as input. The method is based on the numerical inversion of the Nakanishi integral representation and computing the corresponding weight function. This inversion procedure is, in general, rather unstable, and we propose several ways to considerably reduce the instabilities. In terms of the Nakanishi weight function, one can easily compute the BS amplitude, the LF wave function and the electromagnetic form factor. The latter ones are very stable in spite of residual instabilities in the weight function. This procedure allows both, to continue the Euclidean BS solution in the Minkowski space and to obtain a BS amplitude from a LF wave function.

   hep-phnucl-thEPJC(2017)·9 citations
4. 04*

   pNRQCD determination of E1 radiative transitions

   Sebastian Steinbeißer🇩🇪 · Jorge Segovia🇩🇪

   This contribution contains the first numerical computation of the complete set of relativistic corrections of relative order $v^2$ for electric dipole (E1) transitions in heavy quarkonium; in particular, for the processes ${\chi }_{bJ}(1P)\to {\rm Y}(1S)+\gamma$ with $J=0,1,2$. We assume that the momentum transfer of the heavy mesons involved in the reactions lies in the weak-coupling regime of the low-energy effective field theory potential non-relativistic QCD (pNRQCD) and thus a full perturbative calculation can be performed.

   hep-phhep-exhep-latnucl-thEPJ Web Conf.(2017)·6 citations
5. 05*

   Study of $B_s^0\to l^{+}{l}^{-}\gamma$ decays in the nonuniversal Z' model

   D. Banerjee🇮🇳 · M. Kumar🇿🇦 · P. Nayek🇮🇳 · S. Sahoo🇮🇳

   We investigate $B_s^0\to l^{+}{l}^{-}\gamma$ decays in a nonuniversal Z' model derived from extension of the standard model (SM). Considering the Z'-mediated flavor changing neutral current (FCNC) effects we calculate the branching ratio and forwardbackward asymmetry for $B_s^0\to l^{+}{l}^{-}\gamma$ decay processes. We compare the obtained results with predictions of the SM and discuss the sensitivity of the observables to Z' boson coupling parameters. We find the branching ratios are enhanced by one order from SM predictions in Z' model scenario. We also observe the variation of forward-backward asymmetry with the Z' boson coupling parameters portrait discrimination between NP effects and SM results.

   hep-phInt.J.Mod.Phys.A(2019)·3 citations
6. 06*

   Effect of strong magnetic field on competing order parameters in two-flavor dense quark matter

   Tanumoy Mandal🇸🇪 · Prashanth Jaikumar🇺🇸

   We study the effect of strong magnetic field on competing chiral and diquark order parameters in a regime of moderately dense quark matter. The inter-dependence of the chiral and diquark condensates through nonperturbative quark mass and strong coupling effects is analyzed in a two-flavor Nambu-Jona-Lasinio (NJL) model. In the weak magnetic field limit, our results agree qualitatively with earlier zero-field studies in the literature that find a critical coupling ratio $G_D/G_S\sim 1.1$ below which chiral or superconducting order parameters appear almost exclusively. Above the critical ratio, there exists a significant mixed broken phase region where both gaps are non-zero. However, a strong magnetic field $B\gtrsim 10^{18}$ G disrupts this mixed broken phase region and changes a smooth crossover found in the weak-field case to a first-order transition for both gaps at almost the same critical density. Our results suggest that in the two-flavor approximation to moderately dense quark matter, strong magnetic field enhances the possibility of a mixed phase at high density, with implications for the structure, energetics and vibrational spectrum of neutron stars.

   hep-phnucl-thAdv.High Energy Phys.(2017)·14 citations
7. 07*

   On a reinterpretation of the Higgs field in supersymmetry and a proposal for new quarks

   Daniel E. Lopez-Fogliani🇦🇷 · Carlos Munoz🇪🇸

   In the framework of supersymmetry, when $R$-parity is violated the Higgs doublet superfield $H_d$ can be interpreted as another doublet of leptons, since all of them have the same quantum numbers. Thus Higgs scalars are sleptons and Higgsinos are leptons. We argue that this interpretation can be extended to the second Higgs doublet superfield $H_u$, when right-handed neutrinos are assumed to exist. As a consequence, we advocate that this is the minimal construction where the two Higgs doublets can be interpreted in a natural way as a fourth family of lepton superfields, and that this is more satisfactory than the usual situation in supersymmetry where the Higgses are `disconnected' from the rest of the matter and do not have a three-fold replication. On the other hand, in analogy with the first three families where for each lepton representation there is a quark counterpart, we propose a possible extension of this minimal model including a vector-like quark doublet representation as part of the fourth family. We also discuss the phenomenology of the associated new quarks.

   hep-phhep-exhep-thPLB(2017)·10 citations
8. 08*

   Two-Higgs-doublet model of type-II confronted with the LHC run-I and run-II data

   Lei Wang · Xiao-Fang Han

   We examine the parameter space of two-Higgs-doublet model of type-II after imposing the relevant theoretical and experimental constraints from the precision electroweak data, $B$-meson decays, the LHC run-I and run-II data. We find that the searches for Higgs via the $\tau \bar{\tau },WW,ZZ,\gamma \gamma ,hh,hZ,HZ,AZ$ channels can give strong constraints on the CP-odd Higgs $A$ and heavy CP-even Higgs $H$, and the parameter space excluded by each channel is respectively carved out in detail. The surviving samples are discussed in two different of regions: (i) In the SM-like coupling region of the 125 GeV Higgs, $m_A$ is allowed to be as low as 350 GeV, and $\tan \beta$ is imposed a strong upper limit. $m_H$ is allowed to be as low as 200 GeV for the proper $\tan \beta$, $\sin (\beta -\alpha )$ and $m_A$, but is required to be larger than 300 GeV for $m_A=700$ GeV. (ii) In the wrong sign Yukawa coupling of the 125 GeV, $\tan \beta$ and $\sin (\beta -\alpha )$ can be imposed upper limits by $b\bar{b}\to A/H\to \tau \bar{\tau }$ channel and lower limits by the $A\to hZ$ channel. $m_A$ and $m_H$ are respectively allowed to be as low as 60 GeV and 200 GeV, but 320 GeV $<m_A<$ 500 GeV is excluded for $m_H=$ 700 GeV.

   hep-phhep-exPRD(2017)·31 citations
9. 09*

   Pion Distribution Amplitude and Quasi-Distributions

   Anatoly V. Radyushkin🇺🇸

   We extend our analysis of quasi-distributions onto the pion distribution amplitude. Using the formalism of parton virtuality distribution amplitudes (VDAs), we establish a connection between the pion transverse momentum dependent distribution amplitude (TMDA) $\Psi (x,k_{\perp }^2)$ and the pion quasi-distribution amplitude (QDA) $Q_{\pi }(y,p_3)$. We build models for the QDAs from the VDA-based models for soft TMDAs, and analyze the $p_3$ dependence of the resulting QDAs. As there are many models claimed to describe the primordial shape of the pion DA, we present the $p_3$-evolution patterns for models producing some popular proposals: Chernyak-Zhitnitsky, flat and asymptotic DAs. Our results may be used as a guide for future studies of the pion distribution amplitude on the lattice using the quasi-distribution approach.

   hep-phhep-latPRD(2017)·43 citations
10. 10*

    Cosmology and time dependent parameters induced by misaligned light scalar

    Yue Zhao🇺🇸

    We consider a scenario where time dependence on physical parameters is introduced by the misalignment of an ultra-light scalar field. The initial VEV of such field at the early time remains a constant until Hubble becomes comparable to its mass. Interesting cosmological consequences are considered. Light sterile neutrinos hinted by terrestrial neutrino experiments are studied as a benchmark model. We show the BBN constraints can be easily avoided in this scenario, even if reheating temperature is high. The scalar can be naturally light in spite of its couplings to other fields. Parameters of sterile neutrino may remain changing with time nowadays. This can further relax the tension from the recent IceCube constraints.

    hep-phastro-ph.COPRD(2017)·26 citations
11. 11*

    Constraints on Supersymmetric Dark Matter for Heavy Scalar Superpartners

    Peisi Huang🇺🇸 · Roger A. Roglans🇺🇸 · Daniel D. Spiegel🇺🇸 · Yitian Sun🇺🇸 · Carlos E. M. Wagner🇺🇸

    We study the constraints on neutralino dark matter in minimal low energy supersymmetry models and the case of heavy lepton and quark scalar superpartners. For values of the Higgsino and gaugino mass parameters of the order of the weak scale, direct detection experiments are already putting strong bounds on models in which the dominant interactions between the dark matter candidates and nuclei are governed by Higgs boson exchange processes, particularly for positive values of the Higgsino mass parameter mu. For negative values of mu, there can be destructive interference between the amplitudes associated with the exchange of the standard CP-even Higgs boson and the exchange of the non-standard one. This leads to specific regions of parameter space which are consistent with the current experimental constraints and a thermal origin of the observed relic density. In this article we study the current experimental constraints on these scenarios, as well as the future experimental probes, using a combination of direct and indirect dark matter detection and heavy Higgs and electroweakino searches at hadron colliders.

    hep-phPRD(2017)·29 citations
12. 12*

    Faraday rotation due to surface states in the topological insulator (Bi${}_{1-x}$Sb${}_x$)${}_2$Te${}_3$

    Yinming Shao🇺🇸 · Kirk W. Post🇺🇸 · Jhih-Sheng Wu🇺🇸 · Siyuan Dai🇺🇸 · Alex J. Frenzel🇺🇸 · Anthony R. Richardella🇺🇸 · Joon Sue Lee🇺🇸 · Nitin Samarth🇺🇸 · Michael M. Fogler🇺🇸 · Alexander V. Balatsky🇸🇪 · Dmitri E. Kharzeev🇺🇸 · D. N. Basov🇺🇸

    Using magneto-infrared spectroscopy, we have explored the charge dynamics of (Bi,Sb)${}_2$Te${}_3$ thin films on InP substrates. From the magneto-transmission data we extracted three distinct cyclotron resonance (CR) energies that are all apparent in the broad band Faraday rotation (FR) spectra. This comprehensive FR-CR data set has allowed us to isolate the response of the bulk states from the intrinsic surface states associated with both the top and bottom surfaces of the film. The FR data uncovered that electron- and hole-type Dirac fermions reside on opposite surfaces of our films, which paves the way for observing many exotic quantum phenomena in topological insulators.

    ↳ cond-mat.mes-hallhep-phNano Lett.(2017)·2 citations
13. 13*

    Fermion localization mechanism with derivative geometrical coupling on branes

    Yan-Yan Li🇨🇳 · Yu-Peng Zhang🇨🇳 · Wen-Di Guo🇨🇳 · Yu-Xiao Liu🇨🇳

    In order to localize fermions on branes with codimension one, one usually introduces the Yukawa coupling between fermions and background scalar fields or the recently proposed derivative fermion-scalar coupling in [Phys. Rev. D 89 (2014) 086001]. In this paper, we explore the coupling between a spinor field $\Psi$ and the scalar curvature of spacetime $R$, $\eta \Psi {\Gamma }^M{\partial }_{M}F(R){\gamma }^5\bar{\Psi }$ with $F(R)$ a function of $R$, to investigate localization of the fermion. Because of $Z_2$ symmetry of the extra dimension, the new coupling mechanism proposed here can easily deal with the problem encountered in the Yukawa coupling with even background scalar fields. More importantly, the new mechanism will also work for the branes without background scalar fields. By investigating three examples, we find that fermions can be localized on the branes with the new mechanism.

    ↳ hep-thgr-qchep-phPRD(2017)·35 citations
14. 14*

    First measurement of the Sivers asymmetry for gluons from SIDIS data

    C. Adolph · M. Aghasyan · R. Akhunzyanov · M.G. Alexeev · G.D. Alexeev · A. Amoroso · V. Andrieux · N.V. Anfimov · V. Anosov · A. Antoshkin · K. Augsten · W. Augustyniak and 215 other authors

    The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. It was extracted from measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off transversely polarised nucleon targets, and it turned out to be non-zero for quarks. In this letter the evaluation of the Sivers asymmetry for gluons in the same process is presented. The analysis method is based on a Monte Carlo simulation that includes three hard processes: photon-gluon fusion, QCD Compton scattering and leading-order virtual-photon absorption process. The Sivers asymmetries of the three processes are simultaneously extracted using the LEPTO event generator and a neural network approach. The method is applied to samples of events containing at least two hadrons with large transverse momentum from the COMPASS data taken with a 160 GeV/$c$ muon beam scattered off transversely polarised deuterons and protons. With a significance of more than two standard deviations a negative value is obtained for the gluon Sivers asymmetry. The result of a similar analysis for a Collins-like asymmetry for gluons is consistent with zero.

    ↳ hep-exhep-phPLB(2017)·48 citations
15. 15*

    Inflationary Primordial Black Holes as All Dark Matter

    Keisuke Inomata🇯🇵 · Masahiro Kawasaki🇯🇵 · Kyohei Mukaida🇯🇵 · Yuichiro Tada🇯🇵 · Tsutomu T. Yanagida🇯🇵

    Following a new microlensing constraint on primordial black holes (PBHs) with $\sim 10^{20}$--$10^{28}\mathrm{g}$~[1], we revisit the idea of PBH as all Dark Matter (DM). We have shown that the updated observational constraints suggest the viable mass function for PBHs as all DM to have a peak at $\simeq 10^{20}\mathrm{g}$ with a small width $\sigma \lesssim 0.1$, by imposing observational constraints on an extended mass function in a proper way. We have also provided an inflation model that successfully generates PBHs as all DM fulfilling this requirement.

    ↳ astro-ph.COhep-phPRD(2017)·279 citations
16. 16*

    Lorentz invariance violation in the neutrino sector: a joint analysis from big bang nucleosynthesis and the cosmic microwave background

    Wei-Ming Dai🇨🇳 · Zong-Kuan Guo🇨🇳 · Rong-Gen Cai🇨🇳 · Yuan-Zhong Zhang🇨🇳

    We investigate constraints on Lorentz invariance violation in the neutrino sector from a joint analysis of big bang nucleosynthesis and the cosmic microwave background. The effect of Lorentz invariance violation during the epoch of big bang nucleosynthesis changes the predicted helium-4 abundance, which influences the power spectrum of the cosmic microwave background at the recombination epoch. In combination with the latest measurement of the primordial helium-4 abundance, the Planck 2015 data of the cosmic microwave background anisotropies give a strong constraint on the deformation parameter since adding the primordial helium measurement breaks the degeneracy between the deformation parameter and the physical dark matter density.

    ↳ astro-ph.COhep-phEPJC(2017)·16 citations
17. 17*

    Lattice QCD with $N_f=2+1+1$ domain-wall quarks

    Yu-Chih Chen🇹🇼 · Ting-Wai Chiu (TWQCD Collaboration)🇹🇼

    We perform hybrid Monte Carlo simulation of (2+1+1)-flavors lattice QCD with the optimal domain-wall fermion (which has the effective 4D Dirac operator exactly equal to the Zolotarev optimal rational approximation of the overlap Dirac operator). The gauge ensemble is generated on the $32^3\times 64$ lattice with the extent $N_s=16$ in the fifth dimension, and with the plaquette gauge action at $\beta =6/g^2=6.20$. The lattice spacing ($a\simeq 0.063$ fm) is determined by the Wilson flow, using the value $\sqrt{t_0}=0.1416(8)$ fm obtained by the MILC Collaboration for the $(2+1+1)$-flavors QCD. The masses of $s$ and $c$ quarks are fixed by the masses of the vector mesons $\varphi (1020)$ and $J/\psi (3097)$ respectively; while the mass of the $u/d$ quarks is heavier than their physical values, with the unitary pion mass $M_{\pi }\simeq 280$ MeV (and $M_{\pi }L\simeq 3$). We compute the point-to-point quark propagators, and measure the time-correlation functions of meson and baryon interpolators. Our results of the mass spectra of the lowest-lying hadrons containing $s$ and $c$ quarks are in good agreement with the high energy experimental values, together with the predictions of the charmed baryons which have not been observed in experiments.

    ↳ hep-lathep-exhep-phPLB(2017)·39 citations
18. 18*

    The decay constants ${\mathbf{f}}_{\mathbf{D}}$ and ${\mathbf{f}}_{{\mathbf{D}}_{\mathbf{s}}}$ in the continuum limit of ${\mathbf{N}}_{\mathbf{f}}=2+1$ domain wall lattice QCD

    Peter A. Boyle🇬🇧 · Luigi Del Debbio🇬🇧 · Andreas Juttner🇬🇧 · Ava Khamseh🇬🇧 · Francesco Sanfilippo🇬🇧 · Justus Tobias Tsang🇬🇧

    We present results for the decay constants of the $D$ and $D_s$ mesons computed in lattice QCD with $N_f=2+1$ dynamical flavours. The simulations are based on RBC/UKQCD's domain wall ensembles with both physical and unphysical light-quark masses and lattice spacings in the range 0.11--0.07fm. We employ the domain wall discretisation for all valence quarks. The results in the continuum limit are $f_D=208.7(2.8{)}_{\mathrm{stat}}{\left({}_{-1.8}^{+2.1}\right)}_{\mathrm{sys}}\mathrm{MeV}$ and $f_{D_s}=246.4(1.3{)}_{\mathrm{stat}}{\left({}_{-1.9}^{+1.3}\right)}_{\mathrm{sys}}\mathrm{MeV}$ and $f_{D_s}/f_D=1.1667(77{)}_{\mathrm{stat}}{\left({}_{-43}^{+57}\right)}_{\mathrm{sys}}$. Using these results in a Standard Model analysis we compute the predictions $|V_{cd}|=0.2185(50{)}_{\exp }{\left({}_{-37}^{+35}\right)}_{\mathrm{lat}}$ and $|V_{cs}|=1.011(16{)}_{\exp }{\left({}_{-9}^{+4}\right)}_{\mathrm{lat}}$ for the CKM matrix elements.

    ↳ hep-lathep-phJHEP(2017)·100 citations
19. 19*

    Higgs physics at the Future Circular Collider

    David d'Enterria🇨🇭

    The unique Higgs physics opportunities accessible at the CERN Future Circular Collider (FCC) in electron-positron ($\sqrt{s}$ = 125, 240, 350 GeV) and proton-proton ($\sqrt{s}$ = 100 TeV) collisions, are succinctly summarized. Thanks to the large c.m. energies and enormous luminosities (plus clean experimental conditions in the $e^{+}{e}^{-}$ case), many open fundamental aspects of the Higgs sector of the Standard Model (SM) can be experimentally studied: (i) Measurement of the Higgs Yukawa couplings to the lightest fermions: u,d,s quarks (via rare exclusive $H\to (\rho ,\omega ,\varphi )+\gamma$ decays); and e${}^{\pm }$ (via resonant s-channel $e^{+}{e}^{-}\to H$ production); as well as neutrinos (within low-scale seesaw mass generation scenarios); (ii) Measurement of the Higgs potential (triple ${\lambda }_3$, and quartic ${\lambda }_4$ self-couplings), via double and triple Higgs boson production in pp collisions at 100 TeV; (iii) Searches for new physics coupled to the scalar SM sector at scales $\Lambda >$ 6 TeV, thanks to measurements of the Higgs boson couplings with subpercent uncertainties in $e^{+}{e}^{-}\to HZ$; and (iv) Searches for dark matter in Higgs-portal interactions, via high-precision measurements of on-shell and off-shell Higgs boson invisible decays. All these measurements are beyond the reach of pp collisions at the Large Hadron Collider. New higher-energy $e^{+}{e}^{-}$ and pp colliders such as FCC are thus required to complete our understanding of the full set of SM Higgs parameters, as well as to search for new scalar-coupled physics in the multi-TeV regime.

    ↳ hep-exhep-phPoS(2017)·60 citations
20. 20*

    Detailed investigation of the duration of inflation in loop quantum cosmology for a Bianchi-I universe with different inflaton potentials and initial conditions

    Killian Martineau🇫🇷 · Aurélien Barrau🇫🇷 · Susanne Schander🇩🇪

    There is a wide consensus on the correct dynamics of the background in loop quantum cosmology. In this article we make a systematic investigation of the duration of inflation by varying what we think to be the most important "unknowns" of the model: the way to set initial conditions, the amount of shear at the bounce and the shape of the inflaton potential.

    ↳ gr-qcastro-ph.COhep-phPRD(2017)·44 citations
21. 21*

    Low Mass X-Ray Binaries in the Inner Galaxy: Implications for Millisecond Pulsars and the GeV Excess

    Daryl Haggard🇨🇦 · Craig Heinke🇨🇦 · Dan Hooper🇺🇸 · Tim Linden🇺🇸

    If millisecond pulsars (MSPs) are responsible for the excess gamma-ray emission observed from the region surrounding the Galactic Center, the same region should also contain a large population of low-mass X-ray binaries (LMXBs). In this study, we compile and utilize a sizable catalog of LMXBs observed in the the Milky Way's globular cluster system and in the Inner Galaxy, as well as the gamma-ray emission observed from globular clusters, to estimate the flux of gamma rays predicted from MSPs in the Inner Galaxy. From this comparison, we conclude that only up to $\sim$4-23% of the observed gamma-ray excess is likely to originate from MSPs. This result is consistent with, and more robust than, previous estimates which utilized smaller samples of both globular clusters and LMXBs. If MSPs had been responsible for the entirety of the observed excess, INTEGRAL should have detected $\sim$$10^3$ LMXBs from within a $10^{\circ }$ radius around the Galactic Center, whereas only 42 LMXBs (and 46 additional LMXB candidates) have been observed.

    ↳ astro-ph.HEastro-ph.COastro-ph.GAhep-phJCAP(2017)·56 citations
22. 22*

    Missing resonance decays in thermal models

    V.V. Begun🇵🇱 · V.Yu. Vovchenko🇩🇪 · M.I. Gorenstein🇺🇦

    Detailed information on decay channel probabilities is absent for many high mass resonances, which are typically included in thermal models. In these cases, the sum over all known decay branching probabilities is smaller than 1. Due to this systematic uncertainty of the model, the exact charge conservation may appear to be violated. We estimate the corresponding number of missing charge states in the canonical ensemble formulation of the hadron resonance gas for p+p reactions at the SPS energy $E_{\mathrm{lab}}=158$ GeV: $\Delta B\simeq 0.16$ for baryon charge, $\Delta Q\simeq 0.12$ for electric charge, and $\Delta S=-0.01$ for strangeness. The value of the considered effect is 5-8%, which seems to be important enough to include it as a systematic error in the calculations within a hadron gas.

    ↳ nucl-thhep-exhep-phnucl-ex1 citation

* 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.