Date: Thu, 30 May 19 00:30:35 GMT Subject: hep-ex daily 1 new + 6 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 Tue 28 May 19 18:00:00 GMT to Wed 29 May 19 18:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1905.12611 Date: Wed, 29 May 2019 17:48:10 GMT (139kb,D) Title: Time-integrated CP-violation in beauty at LHCb Authors: Emilie Bertholet (on behalf of the LHCb collaboration) Categories: hep-ex Comments: contribution to the 2019 EW/QCD/Gravitation session of the 54th Rencontres de Moriond \\ Precision measurements of time-integrated CP violation in beauty decays permit a better understanding of the different mechanisms underlying CP violation. They allow to better constrain the Standard Model and probe for new physics. A selection of recent LHCb results that highlight different aspects of CP violation in $b$-hadron decays are presented here. \\ ( https://arxiv.org/abs/1905.12611 , 139kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1903.01247 (*cross-listing*) Date: Mon, 4 Mar 2019 14:02:38 GMT (46kb,D) Title: Review of High-Quality Random Number Generators Authors: Frederick James and Lorenzo Moneta Categories: physics.comp-ph hep-ex hep-lat physics.data-an Comments: 21 pages, 4 figures \\ This is a review of pseudorandom number generators (RNG's) of the highest quality, suitable for use in the most demanding Monte Carlo calculations. All the RNG's we recommend here are based on the Kolmogorov-Anosov theory of mixing in classical mechanical systems, which guarantees under certain conditions and in certain asymptotic limits, that points on the trajectories of these systems can be used to produce random number sequences of exceptional quality. We outline this theory of mixing and establish criteria for deciding which RNG's are sufficiently good approximations to the ideal mathematical systems that guarantee highest quality. The well-known RANLUX (at highest luxury level) and its recent variant RANLUX++ are seen to meet our criteria, and some of the proposed versions of MIXMAX can be modified easily to meet the same criteria. \\ ( https://arxiv.org/abs/1903.01247 , 46kb) ------------------------------------------------------------------------------ \\ arXiv:1905.11997 (*cross-listing*) Date: Tue, 28 May 2019 18:00:01 GMT (2226kb,D) Title: CP Symmetries as Guiding Posts: Realistic Variants of Tri-Bi-Maximal Mixing-II Authors: Peng Chen, Salvador Centelles Chuli\'a, Gui-Jun Ding, Rahul Srivastava, Jos\'e W. F. Valle Categories: hep-ph hep-ex Comments: 19 pages, 8 figures Report-no: USTC-ICTS-19-09, IFIC/19-XXX \\ In this follow up of arXiv:1812.04663 we analyze the generalized CP symmetries of the charged lepton mass matrix compatible with the complex version of the Tri-Bi-Maximal (TBM) lepton mixing pattern. These symmetries are used to ``revamp'' the simplest TBM \textit{Ansatz} in a systematic way. Our generalized patterns share some of the attractive features of the original TBM matrix and are consistent with current oscillation experiments. We also discuss their phenomenological implications both for upcoming neutrino oscillation and neutrinoless double beta decay experiments. \\ ( https://arxiv.org/abs/1905.11997 , 2226kb) ------------------------------------------------------------------------------ \\ arXiv:1905.12017 (*cross-listing*) Date: Tue, 28 May 2019 18:23:00 GMT (177kb,D) Title: New physics via pion capture and simple nuclear reactions Authors: Chien-Yi Chen, David McKeen, Maxim Pospelov Categories: hep-ph hep-ex nucl-ex nucl-th Comments: 9 pages, 5 figures \\ Light, beyond-the-standard-model particles $X$ in the 1-100 MeV mass range can be produced in nuclear and hadronic reactions but would have to decay electromagnetically. We show that simple and well-understood low-energy hadronic processes can be used as a tool to study $X$ production and decay. In particular, the pion capture process $\pi^- p \to X n \to e^+ e^- n$ can be used in a new experimental setup to search for anomalies in the angular distribution of the electron-positron pair, which could signal the appearance of dark photons, axion-like particles and other exotic states. This process can be used to decisively test the hypothesis of a new particle produced in the $^7{\rm Li}+p$ reaction. We also discuss a variety of other theoretically clean hadronic processes, such as $p+{\rm D(T)}$ fusion, as a promising source of $X$ particles. \\ ( https://arxiv.org/abs/1905.12017 , 177kb) ------------------------------------------------------------------------------ \\ arXiv:1905.12362 (*cross-listing*) Date: Wed, 29 May 2019 12:07:28 GMT (1229kb,D) Title: Practical Statistics for Particle Physics Authors: Roger John Barlow Categories: physics.data-an hep-ex \\ This is the write-up of a set of lectures given at the Asia Europe Pacific School of High Energy Physics in Quy Nhon, Vietnam in September 2018, to an audience of PhD students in all branches of particle physics They cover the different meanings of 'probability', particularly frequentist and Bayesian, the binomial, Poisson and Gaussian distributions, hypothesis testing, estimation, errors (including asymmetric and systematic errors) and goodness of fit. Several different methods used in setting upper limits are explained, followed by a discussion on why 5 sigma are conventionally required for a 'discovery'. \\ ( https://arxiv.org/abs/1905.12362 , 1229kb) ------------------------------------------------------------------------------ \\ arXiv:1905.12522 (*cross-listing*) Date: Wed, 29 May 2019 15:21:24 GMT (627kb) Title: Data-Driven Modeling of Electron Recoil Nucleation in PICO C$_3$F$_8$ Bubble Chambers Authors: C. Amole, M. Ardid, I. J. Arnquist, D. M. Asner, D. Baxter, E. Behnke, M. Bressler, B. Broerman, G. Cao, C. J. Chen, U. Chowdhury, K. Clark, J. I. Collar, P. S. Cooper, C. B. Coutu, C. Cowles, M. Crisler, G. Crowder, N. A. Cruz-Venegas, C. E. Dahl, M. Das, S. Fallows, J. Farine, R. Filgas, J. Fuentes, F. Girard, G. Giroux, B. Hackett, A. Hagen, J. Hall, C. Hardy, O. Harris, T. Hillier, E. W. Hoppe, C. M. Jackson, M. Jin, L. Klopfenstein, T. Kozynets, C. B. Krauss, M. Laurin, I. Lawson, A. Leblanc, I. Levine, C. Licciardi, W. H. Lippincott, B. Loer, F. Mamedov, P. Mitra, C. Moore, T. Nania, R. Neilson, A. J. Noble, P. Oedekerk, A. Ortega, M.-C. Piro, A. Plante, S. Priya, A. E. Robinson, S. Sahoo, O. Scallon, S. Seth, A. Sonnenschein, N. Starinski, I. \v{S}tekl, T. Sullivan, F. Tardif, E. V\'azquez-J\'auregui, J. M. Wagner, N. Walkowski, E. Weima, U. Wichoski, K. Wierman, W. Woodley, Y. Yan, V. Zacek, J. Zhang Categories: physics.ins-det astro-ph.CO hep-ex hep-ph Comments: 17 pages, 12 figures \\ The primary advantage of moderately superheated bubble chamber detectors is their simultaneous sensitivity to nuclear recoils from WIMP dark matter and insensitivity to electron recoil backgrounds. A comprehensive analysis of PICO gamma calibration data demonstrates for the first time that electron recoils in C$_3$F$_8$ scale in accordance with a new nucleation mechanism, rather than one driven by a hot-spike as previously supposed. Using this semi-empirical model, bubble chamber nucleation thresholds may be tuned to be sensitive to lower energy nuclear recoils while maintaining excellent electron recoil rejection. The PICO-40L detector will exploit this model to achieve thermodynamic thresholds as low as 2.8 keV while being dominated by single-scatter events from coherent elastic neutrino-nucleus scattering of solar neutrinos. In one year of operation, PICO-40L can improve existing leading limits from PICO on spin-dependent WIMP-proton coupling by nearly an order of magnitude for WIMP masses greater than 3 GeV c$^{-2}$ and will have the ability to surpass all existing non-xenon bounds on spin-independent WIMP-nucleon coupling for WIMP masses from 3 to 40 GeV c$^{-2}$. \\ ( https://arxiv.org/abs/1905.12522 , 627kb) ------------------------------------------------------------------------------ \\ arXiv:1905.12585 (*cross-listing*) Date: Wed, 29 May 2019 17:04:43 GMT (2813kb,D) Title: On the Inversion of High Energy Proton Authors: Mikael Mieskolainen Categories: hep-ph hep-ex Comments: 28 pages, 9 figures \\ Inversion of the K-fold stochastic autoconvolution integral equation is an elementary nonlinear problem, yet there are no de facto methods to solve it with finite statistics. To fix this problem, we introduce a novel inverse algorithm based on a combination of minimization of relative entropy, Fast Fourier Transform and a recursive version of Efron's bootstrap. This gives us power to obtain new perspectives on non-perturbative high energy QCD, such as probing the ab initio principles underlying the approximately negative binomial distributions of observed charged particle final state multiplicities, related to multiparton interactions, the fluctuating structure and profile of proton and diffraction. As a proof-of-concept, we apply the algorithm to ALICE proton-proton charged particle multiplicity measurements done at different center-of-mass energies and fiducial pseudorapidity intervals at the LHC, available on HEPData. A strong double peak structure emerges from the inversion, barely visible without it. \\ ( https://arxiv.org/abs/1905.12585 , 2813kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1805.04367 (*cross-listing*) replaced with revised version Wed, 29 May 2019 16:09:49 GMT (478kb,D) Title: Azimuthal anisotropy of heavy-flavour decay electrons in p-Pb collisions at $ \sqrt{s_{\rm NN}}$ = 5.02 TeV Authors: ALICE Collaboration Categories: nucl-ex hep-ex Comments: 18 pages, 3 figures, authors from page 13, published, figures at http://aliceinfo.cern.ch/ArtSubmission/node/4281 Report-no: CERN-EP-2018-119 Journal-ref: Phys. Rev. Lett. 122, 072301 (2019) DOI: 10.1103/PhysRevLett.122.072301 \\ ( https://arxiv.org/abs/1805.04367 , 478kb) ------------------------------------------------------------------------------ \\ arXiv:1811.11028 replaced with revised version Wed, 29 May 2019 09:32:05 GMT (388kb,D) Title: Search for Higgs boson pair production in the $WW^{(*)}WW^{(*)}$ decay channel using ATLAS data recorded at $\sqrt{s}=13$ TeV Authors: ATLAS Collaboration Categories: hep-ex Comments: 39 pages in total, author list starting page 23, 4 figures, 12 tables, published in JHEP, JHEP 05 (2019) 124. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-24/ Report-no: CERN-EP-2018-227 Journal-ref: JHEP 05 (2019) 124 DOI: 10.1007/JHEP05(2019)124 \\ ( https://arxiv.org/abs/1811.11028 , 388kb) ------------------------------------------------------------------------------ \\ arXiv:1901.10389 (*cross-listing*) replaced with revised version Tue, 28 May 2019 23:07:41 GMT (614kb) Title: Studying gaugino masses in supersymmetric model at future 100 TeV $pp$ collider Authors: Shoji Asai, So Chigusa, Toshiaki Kaji, Takeo Moroi, Masahiko Saito, Ryu Sawada, Junichi Tanaka, Koji Terashi, Kenta Uno Categories: hep-ph hep-ex Comments: 30 pages, 16 figures, 5 tables Journal-ref: JHEP 05 (2019) 179 DOI: 10.1007/JHEP05(2019)179 \\ ( https://arxiv.org/abs/1901.10389 , 614kb) ------------------------------------------------------------------------------ \\ arXiv:1904.01611 (*cross-listing*) replaced with revised version Tue, 28 May 2019 22:38:50 GMT (4439kb,D) Title: Energy and Flavor Discrimination Using Precision Time Structure in On-Axis Neutrino Beams Authors: Evan Angelico and Jonathan Eisch and Andrey Elagin and Henry Frisch and Sergei Nagaitsev and Matthew Wetstein Categories: physics.acc-ph hep-ex Comments: 12 pages, 11 figures \\ ( https://arxiv.org/abs/1904.01611 , 4439kb) ------------------------------------------------------------------------------ \\ arXiv:1904.03261 replaced with revised version Tue, 28 May 2019 19:39:11 GMT (1095kb,D) Title: Charm production in charged current deep inelastic scattering at HERA Authors: ZEUS collaboration: I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, S. Dusini, J. Ferrando, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B. B. Levchenko, A. Levy, B. L\"ohr, E. Lohrmann, A. Longhin, O. Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J. D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycie\'n, A. Quintero, M. Ruspa, D. H. Saxon, U. Schneekloth, T. Sch\"orner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, O. Shkola, I. O. Skillicorn, W. S{\l}omi\'nski, A. Solano, L. Stanco, N. Stefaniuk, P. Stopa, B. Surrow, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. \. Zarnecki, L. Zawiejski, O. Zenaiev Categories: hep-ex Report-no: DESY-19-054 \\ ( https://arxiv.org/abs/1904.03261 , 1095kb) ------------------------------------------------------------------------------ \\ arXiv:1905.02753 (*cross-listing*) replaced with revised version Wed, 29 May 2019 02:42:13 GMT (42kb,D) Title: Yields of weakly-bound light nuclei as a probe of the statistical hadronization model Authors: Yiming Cai, Thomas D. Cohen, Boris A. Gelman, and Yukari Yamauchi Categories: nucl-th hep-ex hep-ph nucl-ex \\ ( https://arxiv.org/abs/1905.02753 , 42kb) ------------------------------------------------------------------------------ \\ arXiv:1905.10014 (*cross-listing*) replaced with revised version Tue, 28 May 2019 20:25:35 GMT (6kb) Title: Axions and Atomic Clocks Authors: Lawrence M. Krauss (The Origins Project Foundation) Categories: hep-ph astro-ph.CO hep-ex quant-ph Comments: 3 pages, submitted to Phys. Rev. Lett. New reference added \\ ( https://arxiv.org/abs/1905.10014 , 6kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- 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/