TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2019
DA  - 2019//
TI  - First Measurement of Charm Production in its Fixed-Target Configuration at the LHC
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 132002 - 12pp
VL  - 122
IS  - 13
PB  - Amer Physical Soc
AB  - The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/psi 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 root s(NN) = 86.6 and 110.4 GeV, respectively. The J/psi and D-0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be sigma(J/psi) = 652 +/- 33(stat) +/- 42(syst) nb/nucleon and sigma(D0) = 80.8 +/- 2.4(syst) +/- 6.3(syst) μb/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.
SN  - 0031-9007
UR  - https://arxiv.org/abs/1810.07907
UR  - https://doi.org/10.1103/PhysRevLett.122.132002
DO  - 10.1103/PhysRevLett.122.132002
LA  - English
N1  - WOS:000463900300006
ID  - LHCbCollaborationAaij_etal2019
ER  -