2026-04-17T06:16:55Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.14342/33072025-03-11T04:09:13Zcom_2072_482405com_2072_183628col_2072_482415
RECERCAT
author
Badalov, Alexey
author
Calvo Gómez, Míriam
author
Camboni, Alessandro
author
Vilasís Cardona, Xavier
author
LHCb Collaboration - CERN
2025-03-11T04:09:13Z
2025-03-11T04:09:13Z
2014-02
http://hdl.handle.net/20.500.14342/3307
https://doi.org/10.1088/0954-3899/41/5/055002
The differential cross-section as a function of rapidity has been measured for the
exclusive production of J/ψ and ψ(2S) mesons in proton–proton collisions at
√s = 7 TeV, using data collected by the LHCb experiment, corresponding to an
integrated luminosity of 930 pb−1. The cross-sections times branching fractions
to two muons having pseudorapidities between 2.0 and 4.5 are measured to be
σpp→J/ψ →μ+μ− (2.0 < ημ± < 4.5) = 291 ± 7 ± 19 pb,
σpp→ψ(2S)→μ+μ− (2.0 < ημ± < 4.5) = 6.5 ± 0.9 ± 0.4 pb,
where the first uncertainty is statistical and the second is systematic. The
measurements agree with next-to-leading order QCD predictions as well as
with models that include saturation effects.
eng
Attribution 4.0 International © CERN
Gran col·lisionador d'hadrons (França i Suïssa)
Protons
Col·lisions (Física nuclear)
Partícules (Física nuclear)
Updated measurements of exclusive J/ψ and ψ(2S) production cross-sections in pp collisions at s√=7 TeV
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion