Three-pion Bose-Einstein correlations measured in proton-proton collisions

LHCb Collaboration

doi:10.1007/JHEP08(2025)174

Three-pion Bose-Einstein correlations measured in proton-proton collisions

LHCb Collaboration

Physics and Astronomy

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Abstract

A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of √s = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb⁻¹. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature of hadronisation in terms of coherence, being consistent with the presence of coherent emission of pions.

Original language	English
Article number	174
Number of pages	26
Journal	Journal of High Energy Physics
Volume	2025
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2025)174
Publication status	Published - 21 Aug 2025

Bibliographical note

Copyright:
© The Author(s) 2025.

Keywords

Hadron-Hadron Scattering
Multi-Parton Interactions
Particle Correlations and Fluctuations
QCD

ASJC Scopus subject areas

Nuclear and High Energy Physics

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title = "Three-pion Bose-Einstein correlations measured in proton-proton collisions",

abstract = "A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of √s = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb−1. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature of hadronisation in terms of coherence, being consistent with the presence of coherent emission of pions.",

keywords = "Hadron-Hadron Scattering, Multi-Parton Interactions, Particle Correlations and Fluctuations, QCD",

author = "\{LHCb Collaboration\} and M. Kucharczyk and D. Johnson and C. Lazzeroni and Madurai, \{M. J.\} and N. Sahoo and A. Sergi and Slater, \{M. W.\} and Thompson, \{D. J.D.\} and Volle, \{F. C.\} and Watson, \{N. K.\} and E. Whiter",

note = "Copyright: {\textcopyright} The Author(s) 2025.",

year = "2025",

month = aug,

day = "21",

doi = "10.1007/JHEP08(2025)174",

language = "English",

volume = "2025",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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TY - JOUR

T1 - Three-pion Bose-Einstein correlations measured in proton-proton collisions

AU - LHCb Collaboration

AU - Kucharczyk, M.

AU - Johnson, D.

AU - Lazzeroni, C.

AU - Madurai, M. J.

AU - Sahoo, N.

AU - Sergi, A.

AU - Slater, M. W.

AU - Thompson, D. J.D.

AU - Volle, F. C.

AU - Watson, N. K.

AU - Whiter, E.

PY - 2025/8/21

Y1 - 2025/8/21

N2 - A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of √s = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb−1. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature of hadronisation in terms of coherence, being consistent with the presence of coherent emission of pions.

AB - A study on the Bose-Einstein correlations for triplets of same-sign pions is presented. The analysis is performed using proton-proton collisions at a centre-of-mass energy of √s = 7 TeV, recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb−1. For the first time, the results are interpreted in the core-halo model. The parameters of the model are determined in regions of charged-particle multiplicity. This measurement provides insight into the nature of hadronisation in terms of coherence, being consistent with the presence of coherent emission of pions.

KW - Hadron-Hadron Scattering

KW - Multi-Parton Interactions

KW - Particle Correlations and Fluctuations

KW - QCD

UR - https://www.scopus.com/pages/publications/105016762778

U2 - 10.1007/JHEP08(2025)174

DO - 10.1007/JHEP08(2025)174

M3 - Article

AN - SCOPUS:105016762778

SN - 1126-6708

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 174

ER -

Three-pion Bose-Einstein correlations measured in proton-proton collisions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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