Forward rapidity J/ψ production as a function of charged-particle multiplicity in pp collisions at √s = 5.02 and 13 TeV

Oskari Saarimäki, ALICE Collaboration

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

Abstract

The production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in proton-proton (pp) collisions at center-of-mass energies s = 5.02 and 13 TeV. The J/ψ mesons are reconstructed via their decay into dimuons in the rapidity interval (2.5 < y < 4.0), whereas the charged-particle multiplicity density (dN ch/dη) is measured at midrapidity (|η| < 1). The production rate as a function of multiplicity is reported as the ratio of the yield in a given multiplicity interval to the multiplicity-integrated one. This observable shows a linear increase with charged-particle multiplicity normalized to the corresponding average value for inelastic events (dN ch/dη/〈dN ch/dη〉), at both the colliding energies. Measurements are compared with available ALICE results at midrapidity and theoretical model calculations. First measurement of the mean transverse momentum (〈p T〉) of J/ψ in pp collisions exhibits an increasing trend as a function of dN ch/dη/〈dN ch/dη〉 showing a saturation towards high charged-particle multiplicities. [Figure not available: see fulltext.]

Original languageEnglish
Article number15
JournalJournal of High Energy Physics
Volume2022
DOIs
Publication statusPublished - Jun 2022
MoE publication typeA1 Journal article-refereed

Keywords

  • Hadron-Hadron Scattering

Fingerprint

Dive into the research topics of 'Forward rapidity J/ψ production as a function of charged-particle multiplicity in pp collisions at √s = 5.02 and 13 TeV'. Together they form a unique fingerprint.

Cite this