Multi-strange baryon production in Au+Au collisions at {radical}s{sub NN} = 130 GeV

J. R. Adams,C. Adler,Madan M. Aggarwal,Zubayer Ahammed,J. Amonett,B. D. Anderson,Michael W. Anderson,D. Arkhipkin,G. S. Averichev,S. K. Badyal,J. Balewski,O. Barannikova,Lee Stuart Barnby,J. Baudot,S. Bekele,V. V. Belaga,Rene Bellwied,Joram Berger,B. I. Bezverkhny,S. Bhardwaj,P. Bhaskar,A. K. Bhati,H. Bichsel,A. Billmeier,L. C. Bland,C. O. Blyth,B. E. Bonner,M. Botje,A. Boucham,A. V. Brandin,A. Bravar,R. V. Cadman,X. Z. Cai,H. Caines,M. Calderon De La Barca Sanchez,J. B. Carroll,J. Castillo,M. Castro,D. Cebra,P. Chaloupka,Sukalyan Chattopadhyay,H. F. Chen,Yu Chen,S. P. Chernenko,M. Cherney,A. Chikanian,B. Choi,W. Christie,J. P. Coffin,Thomas Michael Cormier,J. G. Cramer,H. J. Crawford,Debasish Das,S. Das,A. A. Derevschikov,L. Didenko,Thomas Dietel,X. Dong,J. E. Draper,F. Du,Anand Kumar Dubey,V. B. Dunin,J. C. Dunlop,M. R. Dutta Majumdar,V. Eckardt,L. G. Efimov,V. Emelianov,J. Engelage,G. Eppley,B. Erazmus,M. Estienne,P. Fachini,V. Faine,Julien Faivre,R. Fatemi,K. Filimonov,P. Filip,E. Finch,Y. Fisyak,D. Flierl,K. J. Foley,J. Fu,C. A. Gagliardi, Ganti,T. D. Gutierrez,N.D. Gagunashvili,J. Gans,L. Gaudichet,Marie Germain,Frank Jm Geurts,V. Ghazikhanian,Premomoy Ghosh,J. E. Gonzalez,O. A. Grachov,V. Grigoriev,S. Gronstal,D. Grosnick,M. Guedon,S. M. Guertin,A. Gupta

Physical Review Letters（2003）

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摘要

The transverse mass spectra and mid-rapidity yields for {Xi}s and {Omega}s plus their anti-particles are presented. The 10% most central collision yields suggest that the amount of multi-strange particles produced per produced charged hadron increases from SPS to RHIC energies. A hydrodynamically inspired model fit to the spectra, which assumes a thermalized source, seems to indicate that these multi-strange particles experience a significant transverse flow effect, but are emitted when the system is hotter and the flow is smaller than values obtained from a combined fit to {pi}, K, p and {lambda}s.

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关键词

baryons,production,spectra,hadrons,mass spectra

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