Relative Modification Of Prompt Psimathrm 2s And Mathrmj Psi Yields From Pp To Pbpb Collisions At Sqrts Mathrmnn
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Relative Modification of Prompt $ {\psi\mathrm{(2S)}} $ and $\mathrm{J}/\psi $ Yields from Pp to PbPb Collisions at ${\sqrt{s_{\mathrm{NN}}}}
The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center of mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 inverse picobarns and 464 inverse microbarns, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N[psi(2S)]/N[J/psi])[PbPb]/ (N[psi(2S)]/N[J/psi])[pp], is determined as a function of PbPb collision centrality and charmonium transverse momentum pt, in two kinematic intervals: abs(y)
Measurement of Prompt Psi(2S) to J/psi Yield Ratios in PbPb and Pp Collisions at Sqrt(s[NN]
The ratio between the prompt psi(2S) and J/psi yields, reconstructed via their decays into muon pairs, is measured in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV. The analysis is based on PbPb and pp data samples collected by CMS at the LHC, corresponding to integrated luminosities of 150 inverse microbarns and 5.4 inverse picobarns, respectively. The double ratio of measured yields, (N[psi(2S)]/N[J/psi])[PbPb] / (N[psi(2S)]/ N[J/psi])[pp], is computed in three PbPb collision centrality bins and two kinematic ranges: one at midrapidity, abs(y)
Measurement of Prompt $\psi(2S) \to J/\psi$ Yield Ratios in Pb-Pb and $p-p$ Collisions at $\sqrt {s_{NN}}
The ratio between the prompt [psi](2S) and J/[psi] yields, reconstructed via their decays into [mu]+[mu]-, is measured in Pb-Pb and p-p collisions at √sNN=2.76 TeV. Likewise, the analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150 [mu]b-1 and 5.4 pb-1, respectively. The double ratio of measured yields (N[psi](2S)/NJ/[psi])Pb-Pb/(N[psi](2S)/NJ/[psi])p-p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity,