Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector
The production of two prompt J/ ψ mesons, each with transverse momenta p T > 8.5 GeV and rapidity |y| < 2.1 , is studied using a sample of proton-proton collisions at s=8 TeV, corresponding to an integrated luminosity of 11.4 fb - 1 collected in 2012 with the ATLAS detector at the LHC....
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todo:paper_14346044_v77_n2_p_Aaboud2023-10-03T16:15:26Z Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector Aaboud, M. The production of two prompt J/ ψ mesons, each with transverse momenta p T > 8.5 GeV and rapidity |y| < 2.1 , is studied using a sample of proton-proton collisions at s=8 TeV, corresponding to an integrated luminosity of 11.4 fb - 1 collected in 2012 with the ATLAS detector at the LHC. The differential cross-section, assuming unpolarised J/ ψ production, is measured as a function of the transverse momentum of the lower-p T J/ ψ meson, di-J/ ψp T and mass, the difference in rapidity between the two J/ ψ mesons, and the azimuthal angle between the two J/ ψ mesons. The fraction of prompt pair events due to double parton scattering is determined by studying kinematic correlations between the two J/ ψ mesons. The total and double parton scattering cross-sections are compared with predictions. The effective cross-section of double parton scattering is measured to be σ eff = 6.3 ± 1.6 (stat) ± 1.0 (syst) mb. © 2017, CERN for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346044_v77_n2_p_Aaboud |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
description |
The production of two prompt J/ ψ mesons, each with transverse momenta p T > 8.5 GeV and rapidity |y| < 2.1 , is studied using a sample of proton-proton collisions at s=8 TeV, corresponding to an integrated luminosity of 11.4 fb - 1 collected in 2012 with the ATLAS detector at the LHC. The differential cross-section, assuming unpolarised J/ ψ production, is measured as a function of the transverse momentum of the lower-p T J/ ψ meson, di-J/ ψp T and mass, the difference in rapidity between the two J/ ψ mesons, and the azimuthal angle between the two J/ ψ mesons. The fraction of prompt pair events due to double parton scattering is determined by studying kinematic correlations between the two J/ ψ mesons. The total and double parton scattering cross-sections are compared with predictions. The effective cross-section of double parton scattering is measured to be σ eff = 6.3 ± 1.6 (stat) ± 1.0 (syst) mb. © 2017, CERN for the benefit of the ATLAS collaboration. |
format |
JOUR |
author |
Aaboud, M. |
spellingShingle |
Aaboud, M. Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
author_facet |
Aaboud, M. |
author_sort |
Aaboud, M. |
title |
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
title_short |
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
title_full |
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
title_fullStr |
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
title_full_unstemmed |
Measurement of the prompt J/ ψ pair production cross-section in pp collisions at √s=8 TeV with the ATLAS detector |
title_sort |
measurement of the prompt j/ ψ pair production cross-section in pp collisions at √s=8 tev with the atlas detector |
url |
http://hdl.handle.net/20.500.12110/paper_14346044_v77_n2_p_Aaboud |
work_keys_str_mv |
AT aaboudm measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector |
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1782026803539345408 |