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Elliptic flow of Eta and ă.sup.o./sup. mesons in heavy-ion collisions at 2 A GeV

SYSNO ASEP	0185692
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Elliptic flow of Eta and ă^o mesons in heavy-ion collisions at 2 A GeV
Author(s)	Taranenko, Arkadij (UJF-V) Kugler, Andrej (UJF-V)_{RID, ORCID, SAI}
Source Title	Czechoslovak Journal of Physics. - : Springer - ISSN 0011-4626 Roč. 50, č. 54 (2000), s. 139-140
Number of pages	2 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	relativistic heavy ion collisions ; Eta and Pion mesons ; elliptic flow
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
R&D Projects	GA202/00/1668 GA ČR - Czech Science Foundation (CSF)
Annotation	Azimuthal distributions of both Eta and ă^o mesons emitted at midrapidity are studied in collisions of 1.9 A GeV ⁵⁸Ni+⁵⁸Ni and 2 A GeV ⁴⁰Ca+^natCa. The observed anisotropy corresponds to a negative elliptic flow signal for Eta mesons, indicating a preferred emission perpendicular to the reaction plane. In contrast, only small azimuthal anisotropies are observed for ă^o mesons. This may indicate that Eta mesons freeze out earlier from the central interactiregion than pions.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2003

Number of the records: 1