https://doi.org/10.1140/epjc/s10052-019-7134-4
Regular Article - Theoretical Physics
Prompt 
meson production at the LHC in the NRQCD with 
-factorization
1
P.N. Lebedev Institute of Physics, Lenin Avenue 53, 119991, Moscow, Russia
2
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991, Moscow, Russia
3
Joint Institute for Nuclear Research, 141980, Dubna, Moscow Region, Russia
* e-mail: lipatov@theory.sinp.msu.ru
Received:
3
April
2019
Accepted:
13
July
2019
Published online:
25
July
2019
In the framework of the -factorization approach, the prompt production of mesons at the LHC conditions is studied. Our consideration is based on the off-shell amplitudes for hard partonic subprocesses and on the nonrelativistic QCD (NRQCD) formalism for the formation of bound states. We try two latest parametrizations for noncollinear, or transverse momentum dependent (TMD) gluon densities derived from the Catani–Ciafaloni–Fiorani–Marchesini (CCFM) equation. We use the values of the nonperturbative matrix elements obtained from a combined fit of the and 
differential cross sections. Finally, we show an universal set of parameters that provides a reasonable simultaneous description for all of the available data on the prompt and production at the LHC.
© The Author(s), 2019
