arXiv:nucl-th/9711063·v2·Nuclear Theory
Quantum fluctuation effects on hyperfragment formation from Xi^- absorption at rest on 12C
Y. Hirata (Hokkaido Univ.)🇯🇵 · Y. Nara (Japan Atomic Energy Research Inst.)🇯🇵 · A. Ohnishi (Hokkaido Univ.)🇯🇵 · T. Harada (Sapporo Gakuin Univ.)🇯🇵 · J. Randrup (Lawrence Berkeley National Lab.)🇺🇸
Abstract
Formation mechanisms of single, twin, and double hypernuclei from Xi^- absorption at rest on 12C are investigated with an refined microscopic transport model, that incorporates the recently developed Quantal Langevin treatment into Antisymmetrized Molecular Dynamics. The quantum fluctuations suppress the formation probability of double hyperfragments to around 10%, which is comparable to the experimental data, and the dynamical formation of twin hyperfragment can be described qualitatively.
Comments: 30 pages, PTP-TeX with epsf, and embedded 8 PS figures, Largely revised