{omega}{sup -} and {omega}{sup +} Production in Central Pb+Pb collisions at 40 and 158A GeV

Results are presented on {omega} production in central Pb+Pb collisions at 40 and 158A GeV beam energy. For the first time in heavy ion reactions, rapidity distributions and total yields were measured for the sum {omega}{sup -}+{omega}{sup +} at 40A GeV and for {omega}{sup -} and {omega}{sup +} sepa...

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Veröffentlicht in:	Physical review letters 2005-05, Vol.94 (19)
Hauptverfasser:	Alt, C., Billmeier, A., Blume, C., Bramm, R., Dinkelaker, P., Flierl, D., Kliemant, M., Kniege, S., Kollegger, T., Lungwitz, B., Meurer, C., Mitrovski, M., Renfordt, R., Richard, A., Stock, R., Stroebele, H., Wetzler, A., Zaranek, J., Anticic, T., Kadija, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	COLLIDING BEAMS GEV RANGE 10-100 GEV RANGE 100-1000 LEAD 208 BEAMS LEAD 208 REACTIONS LEAD 208 TARGET NUCLEAR PHYSICS AND RADIATION PHYSICS OMEGA MINUS PARTICLES PAIR PRODUCTION PARTICLE RAPIDITY SIGMA BARYONS
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Zusammenfassung:	Results are presented on {omega} production in central Pb+Pb collisions at 40 and 158A GeV beam energy. For the first time in heavy ion reactions, rapidity distributions and total yields were measured for the sum {omega}{sup -}+{omega}{sup +} at 40A GeV and for {omega}{sup -} and {omega}{sup +} separately at 158A GeV. The yields are strongly underpredicted by the string-hadronic UrQMD model but agree better with predictions from hadron gas models.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.94.192301