Skip to Main content Skip to Navigation
Journal articles

Measurement of prompt psi(2S) to J/psi yield ratios in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV

Abstract : 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)<1.6, covering the transverse momentum range 6.5
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01073627
Contributor : Dominique Girod <>
Submitted on : Friday, October 10, 2014 - 10:55:07 AM
Last modification on : Friday, June 5, 2020 - 10:52:07 AM

Links full text

Identifiers

Citation

V. Khachatryan, M. Besancon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of prompt psi(2S) to J/psi yield ratios in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV. Physical Review Letters, American Physical Society, 2014, 113, pp.262301. ⟨10.1103/PhysRevLett.113.262301⟩. ⟨in2p3-01073627⟩

Share

Metrics

Record views

547