Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at sNN=5.02TeV

The CMS Collaboration

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Measurements of prompt ψ(2S) meson production cross sections in proton–lead (pPb) and proton–proton (pp) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb−1 and 28.0 pb−1, respectively. The nuclear modification factor RpPb is measured for prompt ψ(2S) in the transverse momentum range 4<pT<30GeV/c and the center-of-mass rapidity range −2.4<yCM<1.93. The results on ψ(2S) RpPb are compared to the corresponding modification factor for prompt J/ψ mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for pT<10GeV/c.

Original languageEnglish
Pages (from-to)509-532
Number of pages24
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume790
DOIs
Publication statusPublished - 2019 Mar 10

Keywords

  • CMS
  • pPb
  • ψ(2S)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at s<sub>NN</sub>=5.02TeV'. Together they form a unique fingerprint.

Cite this