Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/171183
Title: | First Measurement of Charm Production in its Fixed-Target Configuration at the LHC |
Author: | Alfonso Albero, Alejandro Calvo Gómez, Míriam Camboni, Alessandro Coquereau, Samuel Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Cromodinàmica quàntica Quarks Col·lisions d'ions pesats Quantum chromodynamics Quarks Heavy ion collision |
Issue Date: | 2-Apr-2019 |
Publisher: | American Physical Society |
Abstract: | The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J / ψ and D 0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of √ s NN = 86.6 and 110.4 GeV, respectively. The J / ψ and D 0 production cross sections in p He collisions in the rapidity range [2, 4.6] are found to be σ J / ψ = 652 ± 33 ( stat ) ± 42 ( syst ) nb / nucleon and σ D 0 = 80.8 ± 2.4 ( stat ) ± 6.3 ( syst ) μ b / nucleon , where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken- x region. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.122.132002 |
It is part of: | Physical Review Letters, 2019, vol. 122, num. 13, p. 132002 |
URI: | http://hdl.handle.net/2445/171183 |
Related resource: | https://doi.org/10.1103/PhysRevLett.122.132002 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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