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Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at sNN=5 TeV
- The LHCb collaboration;
- Aaij, R;
- Abellán Beteta, C;
- Adeva, B;
- Adinolfi, M;
- Affolder, A;
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Published Web Location
http://doi.org/10.1007/JHEP03(2016)133No data is associated with this publication.
Abstract
The production of ψ(2S) mesons is studied in dimuon final states using proton-lead (pPb) collision data collected by the LHCb detector. The data sample corresponds to an integrated luminosity of 1.6 nb−1. The nucleon-nucleon centre-of-mass energy of the pPb collisions is (Formula presented.) TeV. The measurement is performed using ψ(2S) mesons with transverse momentum less than 14 GeV/c and rapidity y in the ranges 1.5 < y < 4.0 and −5.0 < y < −2.5 in the nucleon-nucleon centre-of-mass system. The forward-backward production ratio and the nuclear modification factor are determined for ψ(2S) mesons. Using the production cross-section results of ψ(2S) and J/ψ mesons from b-hadron decays, the (Formula presented.) cross-section in pPb collisions at (Formula presented.) TeV is obtained.