The cross-section of associated J/psi-psi(2S) production in proton-proton collisions at a centre-of-mass energy of root s = 13TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb(-1), collected by the LHCb experiment. The measurement is performed for both J/psi and psi(2S) mesons having transverse momentum...
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2024 (v1)PublicationUploaded on: November 5, 2024
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2024 (v1)Publication
The fraction of chi(c1) and chi(c2) decays in the prompt J=psi yield, F-chi c -> J=psi = sigma(chi c) -> J=psi/ sigma(J/ psi) , is measured by the LHCb detector in pPb collisions at root s(NN) = 8.16 TeV. The study covers the forward (1.5 < y* < 4.0) and sNN backward (-5.0 < y* < -2.5) rapidity regions, where y* is the J=psi rapidity in the...
Uploaded on: November 5, 2024