Enhancement of low-mass dileptons in heavy ion collisions

Enhancement of low-mass dileptons in heavy ion collisions

Using a relativistic transport model for the expansion stage of S+Au collisions at 200 GeV/nucleon, we show that the recently observed enhancement of low-mass dileptons by the CERES Collaboration can be explained by the decrease of vector meson masses in hot and dense hadronic matter. {copyright} {i...

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Veröffentlicht in:Physical Review Letters 1995-11, Vol.75 (22), p.4007-4010
Hauptverfasser: Li, GQ, Ko, CM, Brown, GE
Format: Artikel
Sprache:eng
Schlagworte:
ALUMINIUM 27 TARGET
HEAVY ION REACTIONS
LEPTONS
MASS
PAIR PRODUCTION
PHYSICS
QUANTUM CHROMODYNAMICS
SULFUR 32 REACTIONS
SUM RULES
TEV RANGE
TRANSPORT
VECTOR MESONS
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Zusammenfassung:Using a relativistic transport model for the expansion stage of S+Au collisions at 200 GeV/nucleon, we show that the recently observed enhancement of low-mass dileptons by the CERES Collaboration can be explained by the decrease of vector meson masses in hot and dense hadronic matter. {copyright} {ital 1995} {ital The} {ital American} {ital Physical} {ital Society}.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.75.4007