Comparison of source images for protons, pi-'s, and lambda's in 6A GeV Au+Au collisions.

P Chung, N N Ajitanand, J M Alexander, M Anderson,D Best, F P Brady, T Case, W Caskey, D Cebra, J L Chance,B Cole, K Crowe,A C Das,J E Draper, M L Gilkes, S Gushue,M Heffner, A S Hirsch, E L Hjort, W Holzmann, L Huo, M Issah,M Justice,M Kaplan,D Keane, J C Kintner,J Klay, D Krofcheck, R A Lacey,J Lauret, M A Lisa, H Liu, Y M Liu,R McGrath,Z Milosevich, G Odyniec, D L Olson, S Panitkin, N T Porile,G Rai,H G Ritter, J L Romero, R Scharenberg, B Srivastava,N T B Stone,T J M Symons,A Taranenko,J Whitfield, R Witt,L Wood, W N Zhang,D Brown, S Pratt, F Wang, P Danielewicz,

PHYSICAL REVIEW LETTERS（2003）

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摘要

Source images are extracted from two-particle correlations constructed from strange and nonstrange hadrons produced in 6A GeV Au+Au collisions. Very different source images result from pp vs p Lambda vs pi(-)pi(-) correlations. Scaling by transverse mass can describe the apparent source size ratio for p/pi(-) but not for Lambda/pi(-) or Lambda/p. These observations suggest important differences in the space-time emission histories for protons, pions, and neutral strange baryons produced in the same events.

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