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Study of Λ hypernuclei in the quark mean-field model

被引：31
|
作者：
Shen, H
Toki, H
机构：
[1] CCAST, World Lab, Beijing 100080, Peoples R China
[2] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China
[3] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
[4] Osaka Univ, RCNP, Ibaraki, Osaka 5670047, Japan
来源：
NUCLEAR PHYSICS A | 2002年 / 707卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
quark mean-field model; constituent quark model; Lambda hypernuclei;
D O I：
10.1016/S0375-9474(02)00961-2
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We extend the quark mean-field model to the study of Lambda hypernuclei. Without adjusting parameters, the properties of Lambda hypernuclei can be described reasonably well. The small spin-orbit splittings for Lambda in hypernuclei are achieved, while the A single-particle energies in the present model are slightly underestimated as compared with the experimental values. About 3% deviation from the quark model prediction for the omega-Lambda couplings is required in order to reproduce the experimental single-particle energies. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：469 / 476
页数：8
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