Prompt and non-prompt J/ψ production and nuclear modification at mid-rapidity in p–Pb collisions at √sNN = 5.02 TeV
ALICE Collaboration. (2018). Prompt and non-prompt J/ψ production and nuclear modification at mid-rapidity in p–Pb collisions at √sNN = 5.02 TeV. European Physical Journal C, 78(6), Article 466. https://doi.org/10.1140/epjc/s10052-018-5881-2
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European Physical Journal CAuthors
Date
2018Copyright
© CERN for the benefit of the ALICE collaboration 2018
A measurement of beauty hadron production at
mid-rapidity in proton-lead collisions at a nucleon–nucleon
centre-of-mass energy √sNN = 5.02 TeV is presented. The
semi-inclusive decay channel of beauty hadrons into J/ψ is
considered, where the J/ψ mesons are reconstructed in the
dielectron decay channel at mid-rapidity down to transverse
momenta of 1.3 GeV/c. The bb production cross section at
mid-rapidity, dσbb /dy, and the total cross section extrapolated
over full phase space, σbb¯, are obtained. This measurement
is combined with results on inclusive J/ψ production
to determine the prompt J/ψ cross sections. The results in
p–Pb collisions are then scaled to expectations from pp collisions
at the same centre-of-mass energy to derive the nuclear
modification factor RpPb, and compared to models to study
possible nuclear modifications of the production induced by
cold nuclear matter effects. RpPb is found to be smaller than
unity at low pT for both J/ψ coming from beauty hadron
decays and prompt J/ψ.
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Springer Berlin HeidelbergISSN Search the Publication Forum
1434-6044Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/28107012
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