Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions

The Lhcb Collaboration

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Correlations of same-sign charged pions are analysed using proton-lead collision data collected by the LHCb experiment at a nucleon-nucleon centre-of-mass energy of 5.02 TeV, corresponding to an integrated luminosity of 1.06 nb−1. Bose-Einstein correlations are observed in the form of an enhancement of pair production for same-sign charged pions with a small four-momentum difference. The dependence of the correlation radius and the intercept parameter on the reconstructed charged-particle multiplicity is investigated. The measured correlation radii scale linearly with the cube root of the reconstructed charged-particle multiplicity, being compatible with predictions of hydrodynamic models on the collision system evolution. [Figure not available: see fulltext.].

Original languageEnglish (US)
Article number172
JournalJournal of High Energy Physics
Issue number9
StatePublished - Sep 2023


  • Hadron-Hadron Scattering
  • Particle Correlations and Fluctuations
  • QCD

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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