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 \( \sqrt{s} \) = 318 GeV within a kinematic phase-space region of 200 GeV2 < Q2 < 60000 GeV2 and y < 0.9, where Q2 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.
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ArXiv ePrint: 1904.03261
INFN Bologna, Bologna, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
Physikalisches Institut der Universität Bonn, Bonn, Germany (supported by the German Federal Ministry for Education and Research (BMBF), under contract No. 05 H09PDF)
Calabria University, Physics Department and INFN, Cosenza, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
National Centre for Particle Physics, Universiti Malaya, 50603 Kuala Lumpur, Malaysia (supported by HIR grant UM.C/625/1/HIR/149 and UMRG grants RU006-2013, RP012A-13AFR and RP012B-13AFR from Universiti Malaya, and ERGS grant ER004-2012A from the Ministry of Education, Malaysia)
Department of Physics, Jagellonian University, Krakow, Poland (supported by the Polish National Science Centre (NCN) grant no. DEC- 2014/13/B/ST2/02486)
School of Physics and Astronomy, University of Glasgow, Glasgow, U.K. (supported by the Science and Technology Facilities Council, U.K.)
Hamburg University, Institute of Experimental Physics, Hamburg, Germany (supported by the German Federal Ministry for Education and Research (BMBF), under contract No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemein- schaft (DFG))
Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan (supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research)
Department of Physics, University of Oxford, Oxford, U.K. (supported by the Science and Technology Facilities Council, U.K.)
INFN Padova, Padova, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
Dipartimento di Fisica e Astronomia dell’Università and INFN, Padova, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel (supported by the Israel Science Foundation)
Department of Physics, Temple University, Philadelphia, PA 19122, U.S.A. (supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science)
Department of Physics, Tokyo Institute of Technology, Tokyo, Japan (supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research)
Università di Torino and INFN, Torino, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
Università del Piemonte Orientale, Novara, and INFN, Torino, Italy (supported by the Italian National Institute for Nuclear Physics (INFN))
Physics and Astronomy Department, University College London, London, U.K. (supported by the Science and Technology Facilities Council, U.K.)
Department of Physics, York University, Ontario, M3J 1P3 J, Canada (supported by the Natural Sciences and Engineering Research Council of Canada (NSERC))
Alexander von Humboldt Professor (B. Foster)
Supported by DESY (M. Wing)
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The ZEUS collaboration., Abt, I., Adamczyk, L. et al. Charm production in charged current deep inelastic scattering at HERA. J. High Energ. Phys. 2019, 201 (2019). https://doi.org/10.1007/JHEP05(2019)201
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DOI: https://doi.org/10.1007/JHEP05(2019)201