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Strange baryon resonance production in sNN=200GeV p+p and Au+Au collisions

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成果类型:
期刊论文
作者:
Abelev B.I.;Aggarwal M.M.;Ahammed Z.;Amonett J.;Anderson B.D.;...
通讯作者:
Abelev, B.I.
作者机构:
[Spinka H.M.; Krueger K.; McClain C.J.; Cadman R.V.; Underwood D.G.] Argonne National Laboratory, Argonne, IL 60439, United States
[Gaillard L.; Jones P.G.; Timmins A.R.; Burton T.P.; Barnby L.S.; Nelson J.M.] University of Birmingham, Birmingham, United Kingdom
[Ullrich T.; Love W.A.; Longacre R.S.; Didenko L.; Christie W.; Potekhin M.; Sorensen P.; Perevoztchikov V.; Ljubicic T.; Hallman T.J.; Dunlop J.C.; van Buren G.; de Phillips M.; Lebedev A.; Zhang H.; Lauret J.; Bravar A.; Ludlam T.; Laue F.; Fachini P.; Bland L.C.; Fisyak Y.; Panitkin S.Y.; LeVine M.J.; Lynn D.; Landgraf J.M.; Fine V.; Tang A.H.; Xu Z.; Ogawa A.] Brookhaven National Laboratory, Upton, NY 11973, United States
[Relyea D.; Hughes E.W.] California Institute of Technology, Pasadena, CA 91125, United States
[Crawford H.J.; Judd E.G.; Engelage J.; Perkins C.] University of California, Berkeley, CA 94720, United States
通讯机构:
[Abelev, B.I.] Y
Yale University, New Haven, CT 06520, United States
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2006
卷:
97
期:
13
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
We report the measurements of Σ(1385) and Λ(1520) production in p+p and Au+Au collisions at sNN=200GeV from the STAR Collaboration. The yields and the pT spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central Au+Au collisions. Our results indicate that there may be a time span between chemical and thermal freeze-out during which elastic hadroni...

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