학술논문
Neutral strange particle dynamics in Au + Au collisions at AGS energies
Document Type
Article
Author
Collaboration:, P Chung for the E895; Alexander, J M; Ajitanand, N N; Anderson, M; Best, D; Brady, F P; Case, T; Caskey, W; Cebra, D; Chance, J L; Chung, P; Cole, B; Crowe, K; Das, A C; Draper, J E; Gilkes, M L; Gushue, S; Heffner, M; Hirsch, A S; Hjort, E L; Huo, L; Justice, M; Kaplan, M; Keane, D; Kintner, J C; Klay, J; Krofcheck, D; Lacey, Roy A; Lauret, J; Lisa, M A; Liu, H; Liu, Y M; McGrath, R; Milosevich, Z; Odyniec, G; Olson, D L; Panitkin, S; Pinkenburg, C; Porile, N T; Rai, G; Ritter, H G; Romero, J L; Scharenberg, R; Schroed, L
Source
Journal of Physics G: Nuclear and Particle Physics; July 1, 2002, Vol. 28 Issue: 7 p1567-1574, 8p
Subject
Language
ISSN
09543899; 13616471
Abstract
The E895 Collaboration has investigated a number of mixed-particle correlations involving neutral strange particles (K0s and Λ) in 2, 4, 6 and 8 A GeV Au + Au collisions at the AGS. The first measurements for pΛ correlations indicate a correlation magnitude of about 50&percent; with a 26 MeV width. Detailed comparisons between data and theory suggest an emitting source with an effective Gaussian radius close to 4.5 fm. This radius is much larger than the value of 2.8 fm predicted by the relativistic transport code ART. Pairs of pK0, π−Λ and π−K0 are found to display essentially zero correlation at 6 A GeV. The latter observations are not unexpected considering that the protonK0 interaction has a very small scattering length and there are no very well known interactions between pions and Λs or K0s.