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Production of ?c+ baryons in proton-proton and lead-lead collisions at ?sNN=5.02TeV

Abstract: The transverse momentum (pT) spectra of inclusively produced ?c+ baryons are measured via the exclusive decay channel ?c+?pK??+ using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton (pp) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02?TeV. The measurement is performed within the ?c+ rapidity interval |y|<1 in the pT range of 5?20GeV/c in pp and 10?20GeV/c in PbPb collisions. The observed yields of ?c+ for pT of 10?20GeV/c suggest a suppression in central PbPb collisions compared to pp collisions scaled by the number of nucleon-nucleon (NN) interactions. The ?c+/D0 production ratio in pp collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from pp collisions in their common pT range.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Physics Letters B 803 (2020) 135328

Editorial: Elsevier

 Fecha de publicación: 01/04/2020

Nº de páginas: 23

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2020.135328

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2020.135328