Charmonium production in pNe collisions at [Formula omitted] GeV

• Autor: Aaij, R ; Abdelmotteleb, A. S. W ; Beteta, C. Abellan ; Abudinén, F ; Ackernley, T ; Adeva, B ; Adinolfi, M
• Assuntos: Collisions (Nuclear physics)
• É parte de: The European physical journal. C, Particles and fields, 2023-07, Vol.83 (7)
• Descrição: The measurement of charmonium states produced in proton-neon ( [Formula omitted]) collisions by the LHCb experiment in its fixed-target configuration is presented. The production of [Formula omitted] and [Formula omitted] mesons is studied with a beam of 2.5 [Formula omitted] protons colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy [Formula omitted]. The data sample corresponds to an integrated luminosity of [Formula omitted] nb [Formula omitted]. The [Formula omitted] and [Formula omitted] hadrons are reconstructed in [Formula omitted] [Formula omitted] final states. The [Formula omitted] production cross-section per target nucleon in the centre-of-mass rapidity range [Formula omitted] is found to be [Formula omitted]. The ratio of [Formula omitted] and [Formula omitted] cross-sections is evaluated to [Formula omitted]. The [Formula omitted] to [Formula omitted] relative production rate is found to be [Formula omitted] in good agreement with other measurements involving beam and target nuclei of similar sizes.
  
• Editor: Springer
  
• Idioma: Inglês