Can We Extract Lambda-Lambda Interaction from Two-Particle Momentum Correlation ?
Abstract
We analyze the invariant mass spectrum of Lambda-Lambda in reaction at P(K^+)=1.65 GeV/c by using a combined framework of IntraNuclear Cascade (INC) model and the correlation function technique. The observed enhancement at low-invariant masses can be well reproduced with attractive Lambda-Lambda interactions with the scattering length either in the range a = -6 \sim -4 fm (no bound state) or a = 7 \sim 12 fm (with bound state). We also discuss Lambda-Lambda correlation functions in central relativistic heavy-ion collisions as a possible way to eliminate this discrete ambiguity.
Cite
@article{arxiv.nucl-th/9903021,
title = {Can We Extract Lambda-Lambda Interaction from Two-Particle Momentum Correlation ?},
author = {A. Ohnishi and Y. Hirata and Y. Nara and S. Shinmura and Y. Akaishi},
journal= {arXiv preprint arXiv:nucl-th/9903021},
year = {2009}
}
Comments
4 Pages, LaTeX with psfig, embedded 4 ps figures. Talk given at KEK-Tanashi Int. Symp. on "Physics of Hadrons and Nuclei", 14-17 Dec. 1998, Tokyo, Japan, Nuclear Physics A, to appear