Date: Wed, 30 Aug 17 00:14:54 GMT Subject: hep-ex daily 11 new + 7 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: hep-ex@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Mon 28 Aug 17 18:00:00 GMT to Tue 29 Aug 17 18:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1708.08483 Date: Mon, 28 Aug 2017 18:57:28 GMT (1886kb,D) Title: Electromagnetic dipole moments of charged baryons with bent crystals at the LHC Authors: E. Bagli, L. Bandiera, G. Cavoto, V. Guidi, L. Henry, D. Marangotto, F. Martinez Vidal, A. Mazzolari, A. Merli, N. Neri, J. Ruiz Vidal Categories: hep-ex hep-ph physics.ins-det Comments: 19 pages, 13 figures \\ We propose a unique program of measurements of electric and magnetic dipole moments of charm, beauty and strange charged baryons at the LHC, based on the phenomenon of spin precession of channeled particles in bent crystals. Studies of crystal channeling and spin precession of positively- and negatively-charged particles are presented, along with feasibility studies and expected sensitivities for the proposed experiment using a layout based on the LHCb detector. \\ ( https://arxiv.org/abs/1708.08483 , 1886kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08539 Date: Mon, 28 Aug 2017 21:46:40 GMT (451kb,D) Title: Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton-proton collisions at 13$\,$TeV Authors: CMS Collaboration Categories: hep-ex Comments: Submitted to Phys. Lett. B. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/B2G-17-010 (CMS Public Pages) Report-no: CMS-B2G-17-010, CERN-EP-2017-196 \\ A search is presented for narrow heavy resonances decaying to a top quark and a bottom quark using data collected by the CMS experiment at $\sqrt{s}=$13$\,$TeV in 2016. The data set analyzed corresponds to an integrated luminosity of 35.9$\,$fb$^{-1}$. Final states that include a single lepton (e, $\mu$), multiple jets, and missing transverse momentum are analyzed. No evidence is found for the production of a W$'$ boson, and the production of right-handed W$'$ bosons is excluded at 95% confidence level for masses up to 3.6$\,$TeV depending on the scenario considered. Exclusion limits for W$'$ bosons are also presented as a function of their coupling strength to left- and right-handed fermions. These limits on a W$'$ boson decaying via a top and a bottom quark are the most stringent published to date. \\ ( https://arxiv.org/abs/1708.08539 , 451kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08628 Date: Tue, 29 Aug 2017 08:04:15 GMT (3172kb,D) Title: $CP$ violation in heavy-flavour hadrons Authors: Greig A. Cowan Categories: hep-ex Comments: Proceedings of the 28th International Symposium on Lepton Photon Interactions at High Energies, 7 - 12 Aug 2017, Sun Yat-Sen University, Guangzhou, China \\ Measurements of $CP$-violating observables in $B$ meson decays can be used to determine the angles of the Unitarity Triangle and hence probe for manifestations of New Physics beyond the Cabibbo-Kobayashi-Maskawa Standard Model paradigm. Of particular interest are precise measurements of the angles $\gamma$ and $\beta$. Also of great importance are studies of $CP$-violation involving $B_s^0$ mesons, in particular the phase $\phi_s$, which is a golden observable in flavour physics at the LHC. Complementary to these studies is the continuing search for direct and indirect $CP$-violation in the charm system, where the experimental precision is now at the $10^{-3}$ level. I will present new and recent results in these topics, and in $CP$-violation searches in baryon decays, with specific emphasis on the measurement programme at the LHC. \\ ( https://arxiv.org/abs/1708.08628 , 3172kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08700 Date: Tue, 29 Aug 2017 11:23:21 GMT (2995kb,D) Title: Study of tau-neutrino production at the CERN SPS Authors: S. Aoki, A. Ariga, T. Ariga, E. Firu, T. Fukuda, Y. Gornushkin, A.M. Guler, M. Haiduc, K. Kodama, M.A. Korkmaz, U. Kose, M. Nakamura, T. Nakano, A.T. Neagu, H. Rokujo, O. Sato, S. Vasina, M. Vladymyrov, M. Yoshimoto Categories: hep-ex physics.ins-det Comments: CERN-SPSC-2017-029 (SPSC-P-354) \\ The DsTau project proposes to study tau-neutrino production in high-energy proton interactions. The outcome of this experiment are prerequisite for measuring the $\nu_\tau$ charged-current cross section that has never been well measured. Precisely measuring the cross section would enable testing of lepton universality in $\nu_\tau$ scattering and it also has practical implications for neutrino oscillation experiments and high-energy astrophysical $\nu_\tau$ observations. $D_s$ mesons, the source of tau neutrinos, following high-energy proton interactions will be studied by a novel approach to detect the double-kink topology of the decays $D_s \rightarrow \tau\nu_\tau$ and $\tau\rightarrow\nu_\tau X$. Directly measuring $D_s\rightarrow \tau$ decays will provide an inclusive measurement of the $D_s$ production rate and decay branching ratio to $\tau$. The momentum reconstruction of $D_s$ will be performed by combining topological variables. This project aims to detect 1,000 $D_s \rightarrow \tau$ decays in $2.3 \times 10^8$ proton interactions in tungsten target to study the differential production cross section of $D_s$ mesons. To achieve this, state-of-the-art emulsion detectors with a nanometric-precision readout will be used. The data generated by this project will enable the $\nu_\tau$ cross section from DONUT to be re-evaluated, and this should significantly reduce the total systematic uncertainty. Furthermore, these results will provide essential data for future $\nu_\tau$ experiments such as the $\nu_\tau$ program in the SHiP project at CERN. In addition, the analysis of $2.3 \times 10^8$ proton interactions, combined with the expected high yield of $10^5$ charmed decays as by-products, will enable the extraction of additional physical quantities. \\ ( https://arxiv.org/abs/1708.08700 , 2995kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08707 Date: Tue, 29 Aug 2017 11:46:23 GMT (106kb,D) Title: Physics case of the very high energy electron--proton collider, VHEeP Authors: A. Caldwell, F. Keeble, E. Simpson Dore, M.Wing Categories: hep-ex hep-ph physics.acc-ph physics.plasm-ph Comments: 6 pages, 2 figures, for proceedings of DIS 2017 workshop \\ The possibility of a very high energy electron-proton (VHEeP) collider with a centre-of-mass energy of 9 TeV has been presented at previous workshops. These proceedings briefly summarise the VHEeP concept, which was recently published, and developments since then, as well as future directions. At the VHEeP collider, with a centre-of-mass energy 30 times greater than HERA, parton momentum fractions, $x$, down to about $10^{-8}$ are accessible for photon virtualities, $Q^2$, of 1 GeV$^2$. This extension in the kinematic range to low $x$ complements proposals for other electron-proton or electron-ion colliders. \\ ( https://arxiv.org/abs/1708.08707 , 106kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08745 Date: Tue, 29 Aug 2017 13:51:54 GMT (724kb) Title: $\pi^0$ and $\eta$ meson production in proton-proton collisions at $\sqrt{s}=8$ TeV Authors: ALICE Collaboration Categories: hep-ex nucl-ex Comments: 32 pages, 8 captioned figures, 6 tables, authors from page 27, submitted to EPJC, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3716 Report-no: CERN-EP-2017-216 \\ An invariant differential cross section measurement of inclusive $\pi^{0}$ and $\eta$ meson production at mid-rapidity in pp collisions at $\sqrt{s}=8$ TeV was carried out by the ALICE experiment at the LHC. The spectra of neutral mesons $\pi^{0}$ and $\eta$ were measured in transverse momentum ranges of $0.33.5$ GeV/$c$. However, a deviation from this empirical scaling law is observed for transverse momenta below $p_{\rm T}<3.5$ GeV/$c$ in the $\eta/\pi^0$ ratio with a significance of $6.2\sigma$. \\ ( https://arxiv.org/abs/1708.08745 , 724kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08747 Date: Tue, 29 Aug 2017 13:54:09 GMT (1376kb,D) Title: Production of vector bosons in association with jets in ATLAS Authors: Evelin Meoni Categories: hep-ex Comments: 6 pages, 4 figures, Proceedings of the Fifth Annual Conference on Large Hadron Collider Physics, Shanghai Jiao Tong University, Shanghai, China, May 15-20, 2017 Report-no: ATL-PHYS-PROC-2017-103 \\ Measurements of the production of jets in association with a W/Z boson in proton-proton collisions are presented using data collected by the ATLAS experiment at LHC at sqrt s = 8 and 13 TeV. Several kinematic regimes are explored with various approaches to probe different aspects of these processes. The differential cross sections of a Z boson in association with jets with pT > 30 GeV and |y|< 2.5 at sqrt s = 13 TeV are measured in a fiducial phase space, probing strong interactions that completely dominate in these processes, while measurements of a W boson in association with at least two jets at high pT and high di-jet invariant mass, where the electroweak production is enhanced, are performed with sqrt s = 8 TeV data. Angular distributions in W+jets events with high pT jets are also measured at sqrt s = 8 TeV focusing on small angular separation between the jets and the W decay products, where contributions from real W emission are expected large. Finally a measurement of the splitting scales occurring in the kt jet-clustering algorithm is presented for final states containing a Z boson at sqrt s = 8 TeV. This measurement based on charged-particle track information constitutes a complementary approach to study jet properties. Data distributions of all the measurements are corrected for detector effects and compared with state-of-art predictions. \\ ( https://arxiv.org/abs/1708.08747 , 1376kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08856 Date: Tue, 29 Aug 2017 16:09:15 GMT (909kb,D) Title: Measurement of the ratio of the $B^0 \to D^{*-} \tau^+ \nu_{\tau}$ and $B^0 \to D^{*-} \mu^+ \nu_{\mu}$ branching fractions using three-prong $\tau$-lepton decays Authors: LHCb collaboration: R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A.A. Alves Jr, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. Andreotti, J.E. Andrews, R.B. Appleby, F. Archilli, P. d'Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, I. Babuschkin, S. Bachmann, J.J. Back, A. Badalov, C. Baesso, S. Baker, V. Balagura, W. Baldini, A. Baranov, R.J. Barlow, C. Barschel, S. Barsuk, W. Barter, F. Baryshnikov, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, A. Beiter, L.J. Bel, N. Beliy, V. Bellee, N. Belloli, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, S. Beranek, A. Berezhnoy, et al. (747 additional authors not shown) Categories: hep-ex Comments: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2017-017.html Report-no: LHCb-PAPER-2017-017 CERN-EP-2017-212 \\ The ratio of branching fractions ${\cal{R}}(D^{*-})\equiv {\cal{B}}(B^0 \to D^{*-} \tau^+ \nu_{\tau})/{\cal{B}}(B^0 \to D^{*-} \mu^+\nu_{\mu})$ is measured using a data sample of proton-proton collisions collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. For the first time ${\cal{R}}(D^{*-})$ is determined using the $\tau$ lepton decays with three charged pions in the final state. The $B^0 \to D^{*-} \tau^+\nu_{\tau}$ yield is normalized to that of the $B^0\to D^{*-}\pi^+\pi^-\pi^+$ mode, providing a measurement of ${\cal{B}}(B^0\to D^{*-}\tau^+\nu_{\tau})/{\cal{B}}(B^0\to D^{*-}\pi^+\pi^-\pi^+) = 1.93 \pm 0.13 \pm 0.17$, where the first uncertainty is statistical and the second systematic. The value of ${\cal{B}}(B^0 \to D^{*-} \tau^+ \nu_{\tau}) = (1.39 \pm 0.09 \pm 0.12 \pm 0.06)\% $ is obtained, where the third uncertainty is due to the limited knowledge of the branching fraction of the normalization mode. Using the well-measured branching fraction of the $B^0 \to D^{*-} \mu^+\nu_{\mu}$ decay, a value of ${\cal{R}}(D^{*-}) = 0.285 \pm 0.019 \pm 0.025 \pm 0.013$ is established, where the third uncertainty is due to the limited knowledge of the branching fractions of the normalization and $B^0 \to D^{*-} \mu^+\nu_{\mu}$ modes. This measurement is in agreement with the Standard Model prediction and with previous results. \\ ( https://arxiv.org/abs/1708.08856 , 909kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08869 Date: Tue, 29 Aug 2017 16:39:11 GMT (450kb,D) Title: Results from the Super Cryogenic Dark Matter Search (SuperCDMS) experiment at Soudan Authors: SuperCDMS Collaboration: R. Agnese, T. Aramaki, I.J. Arnquist, W. Baker, D. Balakishiyeva, S. Banik, D. Barker, R. Basu Thakur, D.A. Bauer, T. Binder, M.A. Bowles, P.L. Brink, R. Bunker, B. Cabrera, D.O. Caldwell, R. Calkins, C. Cartaro, D.G. Cerde\~no, Y. Chang, Y. Chen, J. Cooley, B. Cornell, P. Cushman, M. Daal, P.C.F. Di Stefano, T. Doughty, E. Fascione, E. Figueroa-Feliciano, M. Fritts, G. Gerbier, R. Germond, M. Ghaith, G.L. Godfrey, S.R. Golwala, J. Hall, H.R. Harris, Z. Hong, E.W. Hoppe, L. Hsu, M.E. Huber, V. Iyer, D. Jardin, A. Jastram, C. Jena, M.H. Kelsey, A. Kennedy, A. Kubik, N.A. Kurinsky, B. Loer, E. Lopez Asamar, P. Lukens, D. MacDonell, R. Mahapatra, V. Mandic, N. Mast, E.H. Miller, N. Mirabolfathi, B. Mohanty, J.D. Morales Mendoza, J. Nelson, J.L. Orrell, S.M. Oser, K. Page, W.A. Page, R. Partridge, M. Penalver Martinez, M. Pepin, A. Phipps, S. Poudel, M. Pyle, H. Qiu, W. Rau, P. Redl, A. Reisetter, T. Reynolds, A. Roberts, A.E. Robinson, H.E. Rogers, T. Saab, B. Sadoulet, J. Sander, K. Schneck, R.W. Schnee, S. Scorza, K. Senapati, B. Serfass, D. Speller, M. Stein, J. Street, H.A. Tanaka, D. Toback, R. Underwood, A.N. Villano, B. von Krosigk, B. Welliver, J.S. Wilson, M.J. Wilson, D.H. Wright, S. Yellin, J.J. Yen, B.A. Young, X. Zhang, X. Zhao Categories: hep-ex hep-ph \\ We report the result of a blinded search for Weakly Interacting Massive Particles (WIMPs) using the majority of the SuperCDMS Soudan dataset. With an exposure of 1690 kg days, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP--nucleon cross section of $1.4 \times 10^{-44}$ ($1.0 \times 10^{-44}$) cm$^2$ at 46 GeV/$c^2$. These results set the strongest limits for WIMP--germanium-nucleus interactions for masses $>$12 GeV/$c^2$. \\ ( https://arxiv.org/abs/1708.08869 , 450kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08882 Date: Tue, 29 Aug 2017 17:07:05 GMT (617kb,D) Title: Recent STAR Jet Results of the High-Energy Spin Physics Program at RHIC Authors: Daniel L. Olvitt Jr. (for the STAR Collaboration) Categories: hep-ex nucl-ex \\ The production of jets from polarized proton+proton collisions at STAR is dominated by quark-gluon and gluon-gluon scattering. The dijet double spin asymmetry (A\tsub{LL}) is sensitive to the polarized gluon distribution ($\Delta g(x)$). Dijets are also advantageous because the parton momentum fraction, x, of initial partons may be reconstructed to first order from the final state measurements. Both jet and dijet A\tsub{LL} measurements at $\sqrt{s}$ = 200 GeV have helped to constrain $\Delta g(x)$ in the range $0.05 < x < 0.3$. In 2012, data were collected at $\sqrt{s}$ = 510 GeV in order to probe lower values of x, these data are consistent with the $\sqrt{s}$ = 200 GeV results in the overlapping $x_T$ region. Jet and dijet preliminary A\tsub{LL} results have been released and will soon be incorporated into global analyses. In 2013, high luminosity data, with an estimated 250 pb$^{-1}$ of integrated luminosity were collected at $\sqrt{s}$ = 510 GeV. These data have a figure of merit of $\sim$3 times that of the 2012 data. An update on the dijet A\tsub{LL} measurement will be presented using polarized p+p data collected at STAR during 2013. \\ ( https://arxiv.org/abs/1708.08882 , 617kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08900 Date: Tue, 29 Aug 2017 17:32:13 GMT (207kb,D) Title: Searches for rare and exotic Higgs decays with ATLAS Authors: Marija Marjanovic Categories: hep-ex Comments: 6 pages, LHCP 2017 Report-no: ATL-PHYS-PROC-2017-106 \\ Searches for rare and exotic Higgs decays using proton-proton collision data with the center-of-mass energy of 8 TeV and 13 TeV collected with the ATLAS detector are presented. Various final states are considered. No significant deviations from the Standard Model expectations are found. The results are interpreted in different Beyond Standard Model theories. \\ ( https://arxiv.org/abs/1708.08900 , 207kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1708.08450 (*cross-listing*) Date: Mon, 28 Aug 2017 18:00:00 GMT (20kb,D) Title: Gauge leptoquark as the origin of B-physics anomalies Authors: Luca Di Luzio, Admir Greljo, Marco Nardecchia Categories: hep-ph hep-ex Comments: 7 pages, 1 table Report-no: IPPP/17/66, ZU-TH-24-17 \\ The vector leptoquark representation, $U_\mu = (3,1,2/3)$, was recently identified as an exceptional single mediator model to address experimental hints on lepton flavour universality violation in semileptonic $B$-meson decays, both in neutral ($b \to s \mu \mu$) and charged ($b \to c \tau \nu$) current processes. Nonetheless, it is well-known that massive vectors crave an ultraviolet (UV) completion. We present the first full-fledged UV complete and calculable gauge model which incorporates this scenario while remaining in agreement with all other indirect flavour and electroweak precision measurements, as well as, direct searches at high-$p_T$. The model is based on a new non-abelian gauge group spontaneously broken at the TeV scale, and a specific flavour structure suppressing flavour violation in $\Delta F = 2$ processes while inducing sizeable semileptonic transitions. \\ ( https://arxiv.org/abs/1708.08450 , 20kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08465 (*cross-listing*) Date: Mon, 28 Aug 2017 18:00:08 GMT (30kb) Title: Determination of electric dipole transitions in heavy quarkonia using potential non-relativistic QCD Authors: Jorge Segovia and Sebastian Steinbei{\ss}er Categories: hep-ph hep-ex hep-lat nucl-th Comments: 5 pages; contribution to the proceedings of the FAIRNESS2017: Workshop for young scientists with research interests focused on physics at FAIR. May 28 - June 3, 2017. Sitges, Spain \\ The electric dipole transitions $\chi_{bJ}(1P)\to \gamma\Upsilon(1S)$ with $J=0,1,2$ and $h_{b}(1P)\to \gamma\eta_{b}(1S)$ are computed using the weak-coupling version of a low-energy effective field theory named potential non-relativistic QCD (pNRQCD). In order to improve convergence and thus give firm predictions for the studied reactions, the full static potential is incorporated into the leading order Hamiltonian; moreover, we must handle properly renormalon effects and re-summation of large logarithms. The precision we reach is $k_{\gamma}^{3}/(mv)^{2} \times \mathcal{O}(v^{2})$, where $k_{\gamma}$ is the photon energy, $m$ is the mass of the heavy quark and $v$ its velocity. Our analysis separates those relativistic contributions that account for the electromagnetic interaction terms in the pNRQCD Lagrangian which are $v^{2}$ suppressed and those that account for wave function corrections of relative order $v^{2}$. Among the last ones, corrections from $1/m$ and $1/m^2$ potentials are computed, but not those coming from higher Fock states since they demand non-perturbative input and are $\Lambda_{\text{QCD}}^{2}/(mv)^{2}$ or $\Lambda_{\text{QCD}}^{3}/(m^{3}v^{4})$ suppressed, at least, in the strict weak coupling regime. These proceedings are based on the forthcoming publication \cite{steinbeisser} \\ ( https://arxiv.org/abs/1708.08465 , 30kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08513 (*cross-listing*) Date: Mon, 28 Aug 2017 20:34:25 GMT (109kb,D) Title: Estimating the core compactness of massive stars with Galactic supernova neutrinos Authors: Shunsaku Horiuchi, Ko Nakamura, Tomoya Takiwaki, Kei Kotake Categories: astro-ph.HE hep-ex Comments: 11 pages, 4 figures; submitted to "Focus on microphysics in core-collapse supernovae: 30 years since SN1987A" issue of Journal of Physics G \\ We suggest the future detection of neutrinos from a Galactic core-collapse supernova can be used to infer the progenitor's inner mass density structure. We present the results from 20 axisymmetric core-collapse supernova simulations performed with progenitors spanning initial masses in the range 11--30Msun, and focus on their connections to the progenitor compactness. The compactness is a measure of the mass density profile of the progenitor core and recent investigations have suggested its salient connections to the outcomes of core collapse. Our simulations confirm a correlation between the neutrinos emitted during the accretion phase and the progenitor's compactness, and that the ratio of observed neutrino events during the first hundreds of milliseconds provides a promising handle on the progenitor's inner structure. Neutrino flavor mixing during the accretion phase remains a large source of uncertainty. \\ ( https://arxiv.org/abs/1708.08513 , 109kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08597 (*cross-listing*) Date: Tue, 29 Aug 2017 06:09:13 GMT (3925kb,D) Title: A compact cosmic muon veto detector and possible use with the Iron Calorimeter detector for neutrinos Authors: Neha Panchal, S. Mohanraj, A. Kumar, T. Dey, G. Majumder, R. Shinde, P. Verma, B. Satyanarayana and V.M. Datar Categories: physics.ins-det hep-ex \\ The motivation for a cosmic muon veto (CMV) detector is to explore the possibility of locating the proposed large Iron Calorimeter (ICAL) detector at the India based Neutrino Observatory (INO) at a shallow depth. An initial effort in that direction, through the assembly and testing of a $\sim$ 1 m $\times$ 1 m $\times$ 0.3 m plastic scintillator based detector, is described. The plan for making a CMV detector for a smaller prototype mini-ICAL is also outlined. \\ ( https://arxiv.org/abs/1708.08597 , 3925kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08624 (*cross-listing*) Date: Tue, 29 Aug 2017 07:54:19 GMT (1968kb,D) Title: Confronting Dirac Fermionic Dark Matter with Recent Data Authors: Chun-Khiang Chua, Gwo-Guang Wong Categories: hep-ph hep-ex Comments: 36 pages, 11 figures \\ We study Dirac fermionic dark matter (DM, $\chi^0$) and confront it with recent data. To evade the stringent direct search limits from XENON1T, LUX and PandaX-II expreiments, the quantum numbers of the Dirac DM are taken to be $I_3=Y=0$ to remove the tree-level $Z$-exchange diagram. Loop amplitudes can contribute to the elastic scattering cross section. We find that there are cancellations in the one-loop diagrams, which largely reduce the cross section and make the Dirac DM viable in the direct search. For a generic isospin $I$, we survey the Dirac DM mass constrained by the latest results of PandaX-II, XENON1T and LUX experiments, the observed DM relic density, and the H.E.S.S. and the Fermi-LAT astrophysical observations. Sommerfeld enhancement effects on DM annihilation processes are investigated. We find that the $\chi^0\bar\chi^0$ to the standard model (SM) gauge boson annihilation cross sections are significantly enhanced and the Fermi-LAT, the H.E.S.S. upper limits on $\langle\sigma v\rangle({W^+W^-})$ and the observed relic density become serious constraints on the DM mass. The $I=1$ case is ruled out and Dirac DM masses are forced to be within the ranges of a few to few tens TeV for $2 \leqslant I \leqslant 4$ and few tens to few hundreds TeV for $I \geqslant 5$, giving $\sigma^{SI}$ around $10^{-46}\sim10^{-45}$ cm$^2$. In most cases for $I \leqslant 5$, $\langle\sigma v\rangle({Z^0Z^0})$ and $\langle\sigma v\rangle({Z^0\gamma})$ are larger than $\langle\sigma v\rangle({W^+W^-})$. The $\chi^0\bar\chi^0\to Z^0Z^0$ and $ Z^0\gamma$ annihilation processes can be useful in the search of DM. Our predictions can be verified by the future experiments. \\ ( https://arxiv.org/abs/1708.08624 , 1968kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08692 (*cross-listing*) Date: Tue, 29 Aug 2017 10:53:47 GMT (45kb,D) Title: Isothermal compressibility of hadronic matter formed in relativistic nuclear collisions Authors: Maitreyee Mukherjee, Sumit Basu, Arghya Chatterjee, Sandeep Chatterjee, Souvik Priyam Adhya, Sanchari Thakur, Tapan K. Nayak Categories: nucl-ex hep-ex hep-ph nucl-th Comments: 6 pages, 4 figures \\ We present the first estimation of isothermal compressibility (\kT) of matter formed in relativistic nuclear collisions (\sNN=7.7 GeV to 2.76 TeV) using experimental observables. \kT is connected to the equation of state (EOS) of matter and along with the speed of sound help to determine the softest point of the phase transition and location of the critical point of QCD phase transition. \kT is related to the particle multiplicity fluctuation, volume and temperature of the system and can be calculated from measured quantities. Event-by-event distribution of charged particle multiplicities in narrow centrality bins provides multiplicity fluctuation, which has been further corrected to extract its dynamical component by removing the fluctuations due to the number of participants. Beam energy dependence of \kT~for central heavy-ion collisions from available experimental data shows a decreasing trend of \kT~with the increase of collision energy. \kT~values have been calculated from multiplicity distributions obtained with UrQMD, AMPT and EPOS event generators and compared to those from the experimental results. An estimation of \kT~has been made for collisions at the CERN Large Hadron Collider using the event generators. In addition, \kT~values have been obtained from a hadron resonance gas (HRG) model and seen to follow the nature of the collision energy dependence obtained earlier. \\ ( https://arxiv.org/abs/1708.08692 , 45kb) ------------------------------------------------------------------------------ \\ arXiv:1708.08912 (*cross-listing*) Date: Tue, 29 Aug 2017 17:58:35 GMT (455kb,D) Title: Improved Formalism for Precision Higgs Coupling Fits Authors: Tim Barklow, Keisuke Fujii, Sunghoon Jung, Robert Karl, Jenny List, Tomohisa Ogawa, Michael E. Peskin, and Junping Tian Categories: hep-ph hep-ex Comments: 34 pages, 4 figures Report-no: DESY 17-120 / KEK preprint 2017-22 / SLAC-PUB-17129 \\ Future e+e- colliders give the promise of model-independent determinations of the couplings of the Higgs boson. In this paper, we present an improved formalism for extracting Higgs boson couplings from e+e- data, based on the Effective Field Theory description of corrections to the Standard Model. We apply this formalism to give projections of Higgs coupling accuracies for stages of the International Linear Collider and for other proposed e+e- colliders. \\ ( https://arxiv.org/abs/1708.08912 , 455kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1509.02358 replaced with revised version Tue, 29 Aug 2017 13:03:25 GMT (438kb) Title: Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in $pp$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector Authors: ATLAS Collaboration Categories: hep-ex Comments: 29 pages plus author list (45 pages total), 4 figures, 5 tables, published version including corrections from erratum, all figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2014-16/ Report-no: CERN-PH-EP-2015-217 Journal-ref: Eur. Phys. J. C76 (2016) 87 DOI: 10.1140/epjc/s10052-016-3910-6 \\ ( https://arxiv.org/abs/1509.02358 , 438kb) ------------------------------------------------------------------------------ \\ arXiv:1701.01141 (*cross-listing*) replaced with revised version Mon, 28 Aug 2017 20:40:22 GMT (50kb) Title: Parton saturation scaling function for exclusive production of vector mesons and Deeply Virtual Compton Scattering Authors: F.G. Ben, M.V.T. Machado, W.K. Sauter Categories: hep-ph hep-ex nucl-ex Comments: 8 pages, 3 figures and 2 tables. Extended version to be published in Physical Review D. Title has been changed \\ ( https://arxiv.org/abs/1701.01141 , 50kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arxiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arxiv.org/help/