Differential production cross sections of prompt J/Ï and Ï(2S) charmonium and Ï(nS) (n=1,2,3) bottomonium states are measured in protonâproton collisions at s=13TeV, with data collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fbâ1for the J/Ï and 2.7 fbâ1for the other mesons. The five quarkonium states are reconstructed in the dimuon decay channel, for dimuon rapidity |y|<1.2. The double-differential cross sections for each state are measured as a function of y and transverse momentum, and compared to theoretical expectations. In addition, ratios are presented of cross sections for prompt Ï(2S) to J/Ï Ï(2S) to Ï(1S), and Ï(3S) to Ï(1S) production.
Measurement of quarkonium production cross sections in pp collisions at s=13TeV
Abbrescia, M.;Calabria, C.;Cristella, L.;De Palma, M.;Errico, F.;Lezki, S.;Miniello, G.;My, S.;Nuzzo, S.;Pompili, A.;Selvaggi, G.;Venditti, R.;
2018-01-01
Abstract
Differential production cross sections of prompt J/Ï and Ï(2S) charmonium and Ï(nS) (n=1,2,3) bottomonium states are measured in protonâproton collisions at s=13TeV, with data collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fbâ1for the J/Ï and 2.7 fbâ1for the other mesons. The five quarkonium states are reconstructed in the dimuon decay channel, for dimuon rapidity |y|<1.2. The double-differential cross sections for each state are measured as a function of y and transverse momentum, and compared to theoretical expectations. In addition, ratios are presented of cross sections for prompt Ï(2S) to J/Ï Ï(2S) to Ï(1S), and Ï(3S) to Ï(1S) production.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.