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High Energy Physics - Experiment

arXiv:2306.09755 (hep-ex)
[Submitted on 16 Jun 2023 (v1), last revised 11 Oct 2023 (this version, v3)]

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

Authors:LHCb collaboration: R. Aaij, A.S.W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Agapopoulou, C.A. Aidala, Z. Ajaltouni, S. Akar, K. Akiba, P. Albicocco, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Z. Aliouche, P. Alvarez Cartelle, R. Amalric, S. Amato, J.L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, I.B Bachiller Perea, S. Bachmann, M. Bachmayer, J.J. Back, A. Bailly-reyre, P. Baladron Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R.J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J.M. Basels, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I.B. Bediaga, A. Beiter, S. Belin, V. Bellee, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, S. Bernet Andres, D. Berninghoff, H.C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, Ia. Bezshyiko, J. Bhom, L. Bian, M.S. Bieker, N.V. Biesuz, P. Billoir, A. Biolchini, M. Birch, F.C.R. Bishop, A. Bitadze, A. Bizzeti, M.P. Blago, T. Blake, F. Blanc, J.E. Blank, S. Blusk, D. Bobulska, V.B Bocharnikov, J.A. Boelhauve et al. (963 additional authors not shown)  You must enable JavaScript to view entire author list.
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Abstract:Correlations of same-sign charged particles 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 squared. 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.
Comments: All figures and tables, along with any supplementary material and additional information, are available at this https URL (LHCb public pages)
Subjects: High Energy Physics - Experiment (hep-ex)
Report number: LHCb-PAPER-2023-002, CERN-EP-2023-096
Cite as: arXiv:2306.09755 [hep-ex]
  (or arXiv:2306.09755v3 [hep-ex] for this version)
  https://doi.org/10.48550/arXiv.2306.09755
Journal reference: JHEP 09 (2023) 172
Related DOI: https://doi.org/10.1007/JHEP09%282023%29172

Submission history

From: Marcin Kucharczyk [view email]
[v1] Fri, 16 Jun 2023 10:41:41 UTC (826 KB)
[v2] Mon, 9 Oct 2023 08:42:54 UTC (826 KB)
[v3] Wed, 11 Oct 2023 09:50:16 UTC (826 KB)
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