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Strangeness Enhancement in Cu-Cu and Au-Au Collisions at root s(NN)=200 GeV
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SYSNO ASEP 0384970 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Strangeness Enhancement in Cu-Cu and Au-Au Collisions at root s(NN)=200 GeV Author(s) Agakishiev, G. (RU)
Aggarwal, M. M. (IN)
Ahammed, Z. (IN)
Alakhverdyants, A. V. (RU)
Alekseev, I. (RU)
Alford, J. (US)
Anderson, B. D. (US)
Anson, C. (US)
Arkhipkin, D. (US)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Chaloupka, Petr (UJF-V) RID
Chung, Paul (UJF-V)
Hajková, O. (CZ)
Kapitán, Jan (UJF-V)
Kushpil, Vasilij (UJF-V) ORCID, SAI
Pachr, M. (CZ)
Rusnak, J. (CZ)
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Tlustý, David (UJF-V)Number of authors 375 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 108, č. 6 (2012), 072301/1-072301/6Number of pages 6 s. Language eng - English Country US - United States Keywords heavy ion collision Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects LA09013 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UJF-V - RVO:61389005 UT WOS 000300246000007 DOI 10.1103/PhysRevLett.108.072301 Annotation We report new STAR measurements of midrapidity yields for the Lambda, (Lambda) over bar, K-S(0), Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+) particles in Cu + Cu collisions at root s(NN) = 200 GeV, and midrapidity yields for the Lambda, (Lambda) over bar, K-S(0) particles in Au + Au at root s(NN) = 200 GeV. We show that, at a given number of participating nucleons, the production of strange hadrons is higher in Cu + Cu collisions than in Au + Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parametrization based on the fraction of participants that undergo multiple collisions. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2013
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