PT Journal
AU LHCb Collaboration (Aaij, Rea
   Martinez-Vidal, F
   Oyanguren, A
   Ruiz Valls, P
   Sanchez Mayordomo, C
TI Study of production and cold nuclear matter effects in pPb collisions at=5 TeV
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2014
BP 094
EP 19pp
VL 07
IS 7
DI 10.1007/JHEP07(2014)094
LA English
DE Relativistic heavy ion physics; Quarkonium; Heavy quark production; Heavy Ions; Particle and resonance production
AB Production of mesons in proton-lead collisions at a nucleon-nucleon centre-of-mass energy = 5 TeV is studied with the LHCb detector. The analysis is based on a data sample corresponding to an integrated luminosity of 1.6 nb(-1). The mesons of transverse momenta up to 15 GeV/c are reconstructed in the dimuon decay mode. The rapidity coverage in the centre-of-mass system is 1.5 < y < 4.0 (forward region) and -5.0 < y < -2.5 (backward region). The forward-backward production ratio and the nuclear modification factor for (1S) mesons are determined. The data are compatible with the predictions for a suppression of (1S) production with respect to proton-proton collisions in the forward region, and an enhancement in the backward region. The suppression is found to be smaller than in the case of prompt J/psi mesons.
ER