|
|||||
|
|
Strange baryon resonance production in sqrt s NN=200 GeV p+p and Au+Au collisions |
|
| Authors: | Abelev B I Aggarwal M M Ahammed Z Amonett J Anderson B D Anderson M Arkhipkin D Averichev G S Bai Y Balewski J Barannikova O Barnby L S Baudot J Bekele S Belaga V V Bellingeri-Laurikainen A Bellwied R Benedosso F Bhardwaj S Bhasin A Bhati A K Bichsel H Bielcik J Bielcikova J Bland L C Blyth S-L Bonner B E Botje M Bouchet J Brandin A V Bravar A Burton T P Bystersky M Cadman R V Cai X Z Caines H Calderón de la Barca Sánchez M Castillo J Catu O Cebra D Chajecki Z Chaloupka P Chattopadhyay S Chen H F Chen J H Cheng J Cherney M Chikanian A Christie W Coffin J P Cormier T M Cosentino M R Cramer J G |
| Institution: | Yale University, New Haven, Connecticut 06520, USA. |
| Abstract: | We report the measurements of Sigma(1385) and Lambda(1520) production in p+p and Au+Au collisions at sqrts{NN}]=200 GeV from the STAR Collaboration. The yields and the p(T) 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 hadronic interactions occur. |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ | |