Neutral to charged kaon yield fluctuations in Pb - Pb collisions at , root S-NN=2.76 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00363847" target="_blank" >RIV/68407700:21340/22:00363847 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2022.137242" target="_blank" >https://doi.org/10.1016/j.physletb.2022.137242</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2022.137242" target="_blank" >10.1016/j.physletb.2022.137242</a>

Result language
angličtina
Original language name
Neutral to charged kaon yield fluctuations in Pb - Pb collisions at , root S-NN=2.76 TeV
Original language description
We present the first measurement of event-by-event fluctuations in the kaon sector in Pb - Pb collisions at root S-NN = 2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator nu(dyn) 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 nu(dyn) [K+,K-] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, nu(dyn)[K-S(0),K-+/-] features a significant deviation from such scaling. Within uncertainties, the value of nu(dyn) [K-S(0), 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. (C) 2022 European Organization for Nuclear Research, ALICE. Published by Elsevier B.V.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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