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

LHCb Collaboration; Aaij, Roel; Chobanova, Veronika; Kucharczyk, Marcin

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http://hdl.handle.net/2183/42106

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

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Chobanova_Veronika_2023_Study_Bose-Einstein_correlations.pdf (943.87 KB)

Identifiers

URI: http://hdl.handle.net/2183/42106

DOI: https://doi.org/10.1007/JHEP09(2023)172

Publication date

2023-09

Authors

LHCb Collaboration

Aaij, Roel

Chobanova, Veronika

Kucharczyk, Marcin

Bibliographic citation

The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions. J. High Energ. Phys. 2023, 172 (2023). https://doi.org/10.1007/JHEP09(2023)172

Abstract

[Abstract] 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 1.06nb¯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.