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Charged-particle multiplicity distributions over a wide pseudorapidity range in p-Pb collisions at √sNN=5.02 TeV

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This paper presents the primary charged-particle multiplicity distributions in proton-lead collisions at a centre-of-mass energy per nucleon-nucleon collision of √sNN=5.02 TeV. The distributions are reported for non-single diffractive collisions in different pseudorapidity ranges. The measurements a...

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Hauptverfasser: Acharya, Shreyasi (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Berdnikova, Anastasia (VerfasserIn) , Bergmann, Luisa (VerfasserIn) , Bórquez Cárcamo, Andrés G. (VerfasserIn) , Danisch, Meike (VerfasserIn) , Feuillard, Victor (VerfasserIn) , Fokin, Ilya D. (VerfasserIn) , Glässel, Peter (VerfasserIn) , Grünwald, Nadine (VerfasserIn) , Menzel, Marius (VerfasserIn) , Nath, Abhishek (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Schlepper, Felix (VerfasserIn) , Seo, Jinjoo (VerfasserIn) , Skorodumovs, Georgijs (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Stiefelmaier, Stephan (VerfasserIn) , Veen, Casper Arie van (VerfasserIn) , Windelband, Bernd (VerfasserIn) , Yüncü, Alperen (VerfasserIn) , Zanone, Federica (VerfasserIn) , Zhang, Biao (VerfasserIn)
Körperschaft: ALICE (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 29 August 2025
In: The European physical journal. C, Particles and fields
Year: 2025, Jahrgang: 85, Heft: 8, Pages: 1-20
ISSN:1434-6052
DOI:10.1140/epjc/s10052-025-14577-0
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-025-14577-0
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Verfasserangaben:ALICE Collaboration*
Beschreibung
Zusammenfassung:This paper presents the primary charged-particle multiplicity distributions in proton-lead collisions at a centre-of-mass energy per nucleon-nucleon collision of √sNN=5.02 TeV. The distributions are reported for non-single diffractive collisions in different pseudorapidity ranges. The measurements are performed using the combined information from the Silicon Pixel Detector and the Forward Multiplicity Detector of ALICE. The multiplicity distributions are parametrised with a double negative binomial distribution function which provides satisfactory descriptions of the distributions for all the studied pseudorapidity intervals. The data are compared to models and analysed quantitatively, evaluating the first four moments (mean, standard deviation, skewness, and kurtosis). The shape evolution of the measured multiplicity distributions is studied in terms of KNO variables and it is found that none of the considered models reproduces the measurements. This paper also reports on the average charged-particle multiplicity, normalised by the average number of participating nucleon pairs, as a function of the collision energy. The multiplicity results are then compared to measurements made in proton-proton and nucleus-nucleus collisions across a wide range of collision energies.
Beschreibung:Veröffentlicht: 29. August 2025
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol
*ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, A.G. Borquez Carcamo, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, N.A. Grunwald, M.W. Menzel, A. Nath, K. Reygers, R. Schicker, F. Schlepper, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, B. Windelband, A. Yuncu, F. Zanone, B. Zhang [und sehr viele weitere Personen]
Gesehen am 04.02.2026
Beschreibung:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-025-14577-0

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