Charm production in charged current deep inelastic scattering at HERA

Journal of High Energy Physics

M. Przybycien¹  L. Adamczyk¹  E. Tassi²  M. Capua²  O. Shkola³  V. Aushev³  I. Pidhurskyi³  M. Shchedrolosiev³  Yu. Onishchuk³  I. Kadenko³  D. Hochman⁴  U. Karshon⁴  W. Slominski⁵  Y. Yamazaki⁶  A. Quintero⁷  B. Surrow⁷  J. D. Nam⁷  M. Kuze⁸  A. M. Cooper-Sarkar⁹  C. Gwenlan⁹  C. D. Catterall^1,10  U. Schneekloth^1,11  B. Löhr^1,11  K. Wichmann^1,11  I. Bloch^1,11  J. Ferrando^1,11  I. Makarenko^1,11  O. Zenaiev^1,11  O. Kuprash^1,11  O. Turkot^1,11  J. Malka^1,11  O. Behnke^1,11  A. Geiser^1,11  U. Behrens^1,11  N. Stefaniuk^1,11  R. Ciesielski^1,11  U. Klein^1,11  N. Z. Jomhari^1,11  H. Kowalski^1,11  T. Schörner-Sadenius^1,11  R. Brugnera^1,12  A. Longhin^1,12  A. Garfagnini^1,12  J. Ciborowski^1,13  A. F. Żarnecki^1,13  G. Grzelak^1,13  S. Masciocchi^1,14  J. Onderwaater^1,14  I. Selyuzhenkov^1,14  E. Lohrmann^1,15  N. Kovalchuk^1,15  E. Gallo^1,15  R. Klanner^1,15  J. Sztuk-Dambietz^1,15  M. Turcato^1,15  B. Foster^1,15  A. Bruni^1,16  A. Polini^1,16  M. Corradi^1,16  A. Bertolin^1,17  L. Stanco^1,17  S. Dusini^1,17  S. Yamada^1,18  K. Tokushuku^1,18  K. Nagano^1,18  O. Yu. Lukina^1,19  I. A. Korzhavina^1,19  L. K. Gladilin^1,19  Yu. A. Golubkov^1,19  L. M. Shcheglova^1,19  B. B. Levchenko^1,19  R. K. Dementiev^1,19  A. Caldwell^2,20  A. Verbytskyi^2,20  I. Abt^2,20  T. Tymieniecka^2,21  W. A. T. Wan Abdullah^2,22  P. Kaur^2,23  R. Aggarwal^2,23  N. H. Brook^2,24  M. Wing^2,24  E. Paul^2,25  I. Brock^2,25  D. Gangadharan^2,26  S. Kananov^2,27  A. Levy^2,27  D. H. Saxon^2,28  I. O. Skillicorn^2,28  P. J. Bussey^2,28  L. Zawiejski^2,29  P. Stopa^2,29  J. Chwastowski^2,29  M. Ruspa^3,30  A. Solano^3,31 

[1] AGH University of Science and Technology, Faculty of Physics and Applied Computer Science;Calabria University, Physics Department and INFN;Department of Nuclear Physics, National Taras Shevchenko University of Kyiv;Department of Particle Physics and Astrophysics, Weizmann Institute;Department of Physics, Jagellonian University;Department of Physics, Kobe University;Department of Physics, Temple University;Department of Physics, Tokyo Institute of Technology;Department of Physics, University of Oxford;Department of Physics, York University;Deutsches Elektronen-Synchrotron DESY;Dipartimento di Fisica e Astronomia dell’Università and INFN;Faculty of Physics, University of Warsaw;GSI Helmholtzzentrum für Schwerionenforschung GmbH;Hamburg University, Institute of Experimental Physics;INFN Bologna;INFN Padova;Institute of Particle and Nuclear Studies, KEK;Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics;Max-Planck-Institut für Physik;National Centre for Nuclear Research;National Centre for Particle Physics, Universiti Malaya;Panjab University, Department of Physics;Physics and Astronomy Department, University College London;Physikalisches Institut der Universität Bonn;Physikalisches Institut of the University of Heidelberg;Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University;School of Physics and Astronomy, University of Glasgow;The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences;Università del Piemonte Orientale, Novara, and INFN;Università di Torino and INFN;

关键词: Heavy quark production;    Lepton-Nucleon Scattering (experiments);    QCD;    Electroweak interaction;   

DOI  :  10.1007/JHEP05(2019)201

来源: DOAJ

【 摘 要 】

Abstract Charm production in charged current deep inelastic scattering has been measured for the first time in e ± p collisions, using data collected with the ZEUS detector at HERA, corresponding to an integrated luminosity of 358 pb−1. Results are presented separately for e + p and e − p scattering at a centre-of-mass energy of s $$ \sqrt{s} $$ = 318 GeV within a kinematic phase-space region of 200 GeV2 < Q 2 < 60000 GeV2 and y < 0.9, where Q 2 is the squared four-momentum transfer and y is the inelasticity. The measured cross sections of electroweak charm production are consistent with expectations from the Standard Model within the large statistical uncertainties.

【 授权许可】

Unknown