TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2017
DA  - 2017//
TI  - Study of J/psi production in jets
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 192001 - 11pp
VL  - 118
IS  - 19
PB  - Amer Physical Soc
AB  - The production of J/psi mesons in jets is studied in the forward region of proton-proton collisions using data collected with the LHCb detector at a center-of-mass energy of 13 TeV. The fraction of the jet transverse momentum carried by the J/psi meson, z(J/psi) p(T) (J/psi) / p(T)(jet) is measured using jets with p(T)(jet) > 20 GeV in the pseudorapidity range 2.5 < eta(jet) < 4.0. The observed z(J/psi) distribution for J/psi mesons produced in b-hadron decays is consistent with expectations. However, the results for prompt J/psi production do not agree with predictions based on fixed-order nonrelativistic QCD. This is the first measurement of the p(T) fraction carried by prompt J/psi mesons in jets at any experiment.
SN  - 0031-9007
UR  - http://arxiv.org/abs/1701.05116
UR  - https://doi.org/10.1103/PhysRevLett.118.192001
DO  - 10.1103/PhysRevLett.118.192001
LA  - English
N1  - WOS:000401239200001
ID  - LHCbCollaborationAaij_etal2017
ER  -