PT Journal
AU LHCb Collaboration (Aaij, Rea
   Jaimes Elles, SJ
   Jashal, BK
   Martinez-Vidal, F
   Oyanguren, A
   Rebollo De Miguel, M
   Ruiz Vidal, J
   Sanderswood, I
   Zhuo, J
TI Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2023
BP 172
EP 29pp
VL 09
IS 9
DI 10.1007/JHEP09(2023)172
LA English
DE Hadron-Hadron Scattering; Particle Correlations and Fluctuations; QCD
AB 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 5.02TeV, 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.
ER