Inclusive J/ψ production at mid-rapidity in pp collisions at s $$ \sqrt{s} $$ = 5.02 TeV

A bstract Inclusive J /ψ production is studied in minimum-bias proton-proton collisions at a centre-of-mass energy of $$ \sqrt{s} $$ s = 5 . 02 TeV by ALICE at the CERN LHC. The measurement is performed at mid-rapidity ( |y| < 0 . 9) in the dielectron decay channel down to zero transverse momentum p T , using a data sample corresponding to an integrated luminosity of L int = 19 . 4 ± 0 . 4 nb − 1 . The measured p T -integrated inclusive J /ψ production cross sec- tion is d σ/ d y = 5 . 64 ± 0 . 22(stat.) ± 0 . 33(syst.) ± 0 . 12(lumi.) μ b. The p T -differential cross section d 2 σ/ d p T d y is measured in the p T range 0–10 GeV /c and compared with state-of- the-art QCD calculations. The J /ψ 〈 p T 〉 and $$ \left\langle {p}_{\mathrm{T}}^2\right\rangle $$ p T 2 are extracted and compared with results obtained at other collision energies.

Abstract licence: CC BY

57 more references, whose wording the paper’s licence keeps private.

A person counts once a day per paper. We keep no cookie and no address: a reader is a hash that changes every day. Any month under five reads shows no number.