RT Journal Article
T1 Study of J/ψ production and cold nuclear matter effects in pPb collisions at √sNN = 5 TeV
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Álvarez Cartelle, Paula
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 Hernando Morata, José Ángel
A1 Pazos Álvarez, Antonio
A1 Pérez Trigo, Eliseo
A1 Plo Casasus, Máximo
A1 Rodríguez Pérez, Pablo
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Seco Miguélez, Marcos Antonio
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
K1 Relativistic heavy ion physics
K1 Quarkonium
K1 Heavy quark production
K1 Heavy Ions
K1 Particle and resonance production
AB The production of J/ψ mesons with rapidity 1.5 < y < 4.0 or −5.0 < y < −2.5 and transverse momentum p T < 14 GeV/c is studied with the LHCb detector in proton-lead collisions at a nucleon-nucleon centre-of-mass energy √sNN = 5TeV. The J/ψ mesons are reconstructed using the dimuon decay mode. The analysis is based on a data sample corresponding to an integrated luminosity of about 1.6 nb−1. For the first time the nuclear modification factor and forward-backward production ratio are determined separately for prompt J/ψ mesons and J/ψ from b-hadron decays. Clear suppression of prompt J/ψ production with respect to proton-proton collisions at large rapidity is observed, while the production of J/ψ from b-hadron decays is less suppressed. These results show good agreement with available theoretical predictions. The measurement shows that cold nuclear matter effects are important for interpretations of the related quark-gluon plasma signatures in heavy-ion collisions.
PB Springer
SN 1029-8479
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21932
UL http://hdl.handle.net/10347/21932
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Study of J/ψ production and cold nuclear matter effects in pPb collisions at √sNN = 5 TeV. J. High Energ. Phys. 2014, 72 (2014). https://doi.org/10.1007/JHEP02(2014)072
DS Minerva
RD 24 abr 2026