Elliptic flow of Eta and .pi..sup.o./sup. mesons in heavy-ion collisions at 2 A GeV.
Result description
Azimuthal distributions of both Eta and .pi..sup.o./sup. mesons emitted at midrapidity are studied in collisions of 1.9 A GeV .sup.58./sup.Ni+.sup.58./sup.Ni and 2 A GeV .sup.40./sup.Ca+.sup.nat./sup.Ca. The observed anisotropy corresponds to a negativeelliptic flow signal for Eta mesons, indicating a preferred emission perpendicular to the reaction plane. In contrast, only small azimuthal anisotropies are observed for .pi..sup.o./sup. mesons. This may indicate that Eta mesons freeze out earlier from the central interactiregion than pions.
Keywords
relativistic heavy ion collisionsEta and Pion mesonselliptic flow
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Elliptic flow of Eta and .pi..sup.o./sup. mesons in heavy-ion collisions at 2 A GeV.
Original language description
Azimuthal distributions of both Eta and .pi..sup.o./sup. mesons emitted at midrapidity are studied in collisions of 1.9 A GeV .sup.58./sup.Ni+.sup.58./sup.Ni and 2 A GeV .sup.40./sup.Ca+.sup.nat./sup.Ca. The observed anisotropy corresponds to a negativeelliptic flow signal for Eta mesons, indicating a preferred emission perpendicular to the reaction plane. In contrast, only small azimuthal anisotropies are observed for .pi..sup.o./sup. mesons. This may indicate that Eta mesons freeze out earlier from the central interactiregion than pions.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
GA202/00/1668: HADES - tool for study of hadron properties in the nuclear medium
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2000
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Czechoslovak Journal of Physics
ISSN
0011-4626
e-ISSN
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Volume of the periodical
50
Issue of the periodical within the volume
54
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
2
Pages from-to
139-140
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BG - Nuclear, atomic and molecular physics, accelerators
Year of implementation
2000