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Multiplicity and pseudorapidity distributions of photons in Au+Au collisions at root s(NN)=62.4 GeV
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SYSNO ASEP 0308768 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Multiplicity and pseudorapidity distributions of photons in Au+Au collisions at root s(NN)=62.4 GeV Title Rozdělení multiplicity a pseudorapidity fotonů ve srážkách Au+Au při root s(NN)=62.4 GeV Author(s) Adams, J. (GB)
Bysterský, Michal (UJF-V)
Chaloupka, Petr (UJF-V) RID
Lednický, Richard (FZU-D) RID, ORCID
Šumbera, Michal (UJF-V) RID, ORCID, SAI
Zborovský, Imrich (UJF-V) RID, ORCID, SAISource Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 95, č. 6 (2005), 062301-1-062301-6Number of pages 6 s. Language eng - English Country US - United States Keywords multiplicity ; pseudorapidity ; Au+Au collision Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA202/04/0793 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10480505 - UJF-V (2005-2011) AV0Z10100502 - FZU-D (2005-2011) Annotation We present the first measurement of pseudorapidity distribution of photons in the region 2.3 <= eta <= 3.7 for different centralities in Au+Au collisions at root sNN = 62.4 GeV. We find that the photon yield scales with the number of participating nucleons at all collision centralities studied. The pseudorapidity distribution of photons, dominated by pi(0) decays, has been compared to those of charged pions, photons, and inclusive charged particles from heavy-ion and nucleon-nucleon collisions at various energies. The photon production has been shown to be consistent with the energy and centrality independent limiting fragmentation scenario. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2008
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