Measurement of ψ (2S) production as a function of charged-particle pseudorapidity density in pp collisions at √s = 13 TeV and p–Pb collisions at √sNN = 8.16 TeV with ALICE at the LHC

• Titel: Measurement of ψ (2S) production as a function of charged-particle pseudorapidity density in pp collisions at √s = 13 TeV and p–Pb collisions at √sNN = 8.16 TeV with ALICE at the LHC
• Mitwirkende: Acharya, Shreyasi [VerfasserIn]
• Mitwirkende: Angelov, Venelin [VerfasserIn]
• Mitwirkende: Berdnikova, Anastasia [VerfasserIn]
• Mitwirkende: Bergmann, Luisa [VerfasserIn]
• Mitwirkende: Crkovská, Jana [VerfasserIn]
• Mitwirkende: Danisch, Meike [VerfasserIn]
• Mitwirkende: Feuillard, Victor [VerfasserIn]
• Mitwirkende: Fokin, Ilya D. [VerfasserIn]
• Mitwirkende: Glässel, Peter [VerfasserIn]
• Mitwirkende: Kim, Jiyoung [VerfasserIn]
• Mitwirkende: Kim, Minjung [VerfasserIn]
• Mitwirkende: Kroesen, Martin [VerfasserIn]
• Mitwirkende: López, Jorge [VerfasserIn]
• Mitwirkende: Martin, Nicole Alice [VerfasserIn]
• Mitwirkende: Nath, Abhishek [VerfasserIn]
• Mitwirkende: Pachmayer, Yvonne C. [VerfasserIn]
• Mitwirkende: Reygers, Klaus [VerfasserIn]
• Mitwirkende: Schicker, Rainer [VerfasserIn]
• Mitwirkende: Schmah, Alexander [VerfasserIn]
• Mitwirkende: Skorodumovs, Georgijs [VerfasserIn]
• Mitwirkende: Stachel, Johanna [VerfasserIn]
• Mitwirkende: Stiefelmaier, Stephan [VerfasserIn]
• Mitwirkende: Veen, Casper Arie van [VerfasserIn]
• Mitwirkende: Völkl, Martin [VerfasserIn]
• Mitwirkende: Windelband, Bernd [VerfasserIn]
• Mitwirkende: Yüncü, Alperen [VerfasserIn]
• Mitwirkende: Zanone, Federica [VerfasserIn]
• Körperschaft: ALICE (Körperschaft) [VerfasserIn]
• Verf.angabe: The ALICE collaboration: S. Acharya, A. Berdnikova, L. Bergmann, J. Crkovská, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, J. Kim, M. Kim, M. Kroesen, N.A. Martin, A. Nath, Y. Pachmayer, K. Reygers, G. Skorodumovs, J. Stachel, S. Stiefelmaier, C.A. van Veen, M. Völkl, B. Windelband, A. Yuncu, F. Zanone ... [und 1006 weitere]
• E-Jahr: 2023
• Jahr: 23 June 2023
• Umfang: 28 S.
• Fussnoten: Im Titel ist "NN" nach "s" tiefgestellt, der ganze Ausdruck "sNN" steht unter dem Wurzelsymbol ; Gesehen am 11.04.2023
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2023
• Band/Heft Quelle: (2023), 6, Artikel-ID 147, Seite 1-28
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP06(2023)147
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Jets and Jet Substructure
• Sach-SW: Properties of Hadrons
• K10plus-PPN: 1885633343

Abstract

Production of inclusive charmonia in pp collisions at center-of-mass energy of √s= 13 TeV and p-Pb collisions at center-of-mass energy per nucleon pair of √sNN = 8.16 TeV is studied as a function of charged-particle pseudorapidity density with ALICE. Ground and excited charmonium states (J/ψ, ψ(2S)) are measured from their dimuon decays in the interval of rapidity in the center-of-mass frame 2.5 < ycms < 4.0 for pp collisions, and 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96 for p-Pb collisions. The charged-particle pseudorapidity density is measured around midrapidity (|η| < 1.0). In pp collisions, the measured charged-particle multiplicity extends to about six times the average value, while in p-Pb collisions at forward (backward) rapidity a multiplicity corresponding to about three (four) times the average is reached. The ψ(2S) yield increases with the charged-particle pseudorapidity density. The ratio of ψ(2S) over J/ψ yield does not show a significant multiplicity dependence in either colliding system, suggesting a similar behavior of J/ψ and ψ(2S) yields with respect to charged-particle pseudorapidity density. Results for the ψ(2S) yield and its ratio with respect to J/ψ agree with available model calculations.