Production of K*(892).sup.0./sup. and ɸ(1020) in pp and Pb-Pb collisions at √s.sub.NN./sub.=5.02 TeV

Acharya, S.; Adamová, Dagmar; Adler, A.; Adolfsson, J.; Bielčík, J.; Bielčíková, Jana; Broz, M.; Contreras, J. G.; Herman, T.; Horák, D.; Isakov, Artem; Kotliarov, Artem; Křížek, Filip; Křížková Gajdošová, K.; Kushpil, Svetlana; Lavička, R.; Mareš, Jiří A.; Petráček, V.; Šafařík, K.; Šumbera, Michal; Torres, S. R.; Trzeciak, B. A.; Závada, Petr

doi:https://dx.doi.org/10.1103/PhysRevC.106.034907

Number of the records: 1

Production of K*(892).sup.0./sup. and ɸ(1020) in pp and Pb-Pb collisions at √s.sub.NN./sub.=5.02 TeV

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SYSNO ASEP	0565626
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Production of K*(892)⁰ and ɸ(1020) in pp and Pb-Pb collisions at √s_NN=5.02 TeV
Author(s)	Acharya, S. (IN) Adamová, Dagmar (UJF-V)_{RID, ORCID, SAI} Adler, A. (DE) Adolfsson, J. (SE) Bielčík, J. (CZ) Bielčíková, Jana (UJF-V)_{RID, ORCID, SAI} Broz, M. (CZ) Contreras, J. G. (CZ) Herman, T. (CZ) Horák, D. (CZ) Isakov, Artem (UJF-V)_{ORCID, SAI} Kotliarov, Artem (UJF-V)_{ORCID, SAI} Křížek, Filip (UJF-V)_{RID, ORCID, SAI} Křížková Gajdošová, K. (CZ) Kushpil, Svetlana (UJF-V)_{RID, ORCID, SAI} Lavička, R. (CZ) Mareš, Jiří A. (FZU-D)_{RID, ORCID} Petráček, V. (CZ) Šafařík, K. (CZ) Šumbera, Michal (UJF-V)_{RID, ORCID, SAI} Torres, S. R. (CZ) Trzeciak, B. A. (CZ) Závada, Petr (FZU-D)_{RID, ORCID}
Number of authors	1026
Article number	034907
Source Title	Physical Review C. - : American Physical Society - ISSN 2469-9985 Roč. 106, č. 3 (2022)
Number of pages	20 s.
Publication form	Print - P
Language	eng - English
Country	US - United States
Keywords	ALICE collaboration ; heavy ion collisions ; LHC
OECD category	Nuclear physics
R&D Projects	LTT17018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Research Infrastructure	CERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271 ; UJF-V - RVO:61389005
UT WOS	000890202900004
EID SCOPUS	85140581730
DOI	10.1103/PhysRevC.106.034907
Annotation	The production of K (892)(0) and phi(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at root s(NN) = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (p(T)) distributions of K(892)(0) and phi(1020) mesons have been measured at midrapidity (vertical bar y vertical bar < 0.5) up to p(T) = 20 GeV/c in inelastic pp collisions and for several Pb-Pb collision centralities. The collision centrality and collision energy dependence of the average transverse momenta agree with the radial flow scenario observed with stable hadrons, showing that the effect is stronger for more central collisions and higher collision energies. The K(0)/K ratio is found to be suppressed in Pb-Pb collisions relative to pp collisions: this indicates a loss of the measured K (892)(0) signal due to rescattering of its decay products in the hadronic phase. In contrast, for the longer-lived phi(1020) mesons, no such suppression is observed. The nuclear modification factors (R-AA) of K(892)(0) and phi(1020) mesons are calculated using pp reference spectra at the same collision energy. In central Pb-Pb collisions for p(T) > 8 GeV/c, the R-AA values of K (892)(0) and phi(1020) are below unity and observed to be similar to those of pions, kaons, and (anti)protons. The R-AA values at high pT (>8 GeV/c) for K*(892)0 and f(1020) mesons are in agreement within uncertainties for root s(NN) = 5.02 and 2.76 TeV.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2023
Electronic address	https://doi.org/10.1103/PhysRevC.106.034907

Number of the records: 1