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Neutral to charged kaon yield fluctuations in Pb-Pb collisions at √sNN=2.76 TeV

We present the first measurement of event-by-event fluctuations in the kaon sector in Pb - Pb collisions at sNN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, a...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Berdnikova, Anastasia (Author) , Bergmann, Luisa (Author) , Danisch, Meike (Author) , Feuillard, Victor (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Kim, Minjung (Author) , Kroesen, Martin (Author) , López, Jorge (Author) , Martin, Nicole Alice (Author) , Nath, Abhishek (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmah, Alexander (Author) , Schmidt, Marten Ole (Author) , Skorodumovs, Georgijs (Author) , Stachel, Johanna (Author) , Stiefelmaier, Stephan (Author) , Völkel, Benedikt (Author) , Völkl, Martin (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author) , Zanone, Federica (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: [10 September 2022]
In: Physics letters
Year: 2022, Volume: 832, Pages: 1-12
ISSN:1873-2445
DOI:10.1016/j.physletb.2022.137242
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2022.137242
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269322003768
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Author Notes:ALICE Collaboration
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Summary:We present the first measurement of event-by-event fluctuations in the kaon sector in Pb - Pb collisions at sNN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator νdyn[K+,K−] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, νdyn[KS0,K±] features a significant deviation from such scaling. Within uncertainties, the value of νdyn[KS0,K±] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS-LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb - Pb collisions.
Item Description:ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M. Kroesen, J.A. Lopez, N.A. Martin, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, B. Volkel, M.A. Völkl, B. Windelband, A. Yuncu, F. Zanone und 1000 weitere
Available online 9 June 2022
sNN steht im Titel unter dem Wurzelsymbol, s steht über NN
Gesehen am 17.01.2023
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2022.137242

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