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Measurement of D ±s production asymmetry in pp collisions at √s=7 and 8 TeV
The inclusive D ±s production asymmetry is measured in pp collisions collected by the LHCb experiment at centre-of-mass energies of √s=7 and 8 TeV. Promptly produced D ±s mesons are used, which decay as D ±s → ϕπ±, with ...
Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at √s=13 TeV
Measurements are reported of the central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly reduced compared to previous measurements made at ...