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oai:recercat.cat:2445/2206332025-12-05T16:16:17Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions  Alfonso Albero, Alejandro Garcia Moreno, Paula Garrido Beltrán, Lluís Gironella Gironell, Pere Gomez Fernandez, S. Graugés Pous, Eugeni Lobo Salvia, Aniol López Huertas, Albert Manera Escalero, Rafel Marin Benito, Carla Mauricio, J. Vazquez Gomez, Ricardo LHCb collaboration Hadrons Física de partícules Bosons Hadrons Particle physics Bosons 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 diference. 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. 2025-04-25T14:03:27Z 2025-04-25T14:03:27Z 2023 2025-04-25T14:03:27Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.1007/JHEP09(2023)172 Journal of High Energy Physics, 2023, vol. 2023, num.172, p. 1-29 https://doi.org/10.1007/JHEP09(2023)172 cc-by (c) LHCb collaboration, 2023 http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Springer Verlag Articles publicats en revistes (Física Quàntica i Astrofísica)