夸克平均场模型的有限核及超核研究(英文)  

Quark Mean Field Model for Finite Nuclei and Hypernuclei

作　　者：申虹[1] 

机构地区：[1]南开大学物理系

出　　处：《高能物理与核物理》2004年第12期1313-1316,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金 (10 13 5 0 3 0 );国家教育部优秀青年教师基金资助~~

摘　　要：夸克平均场模型采用组分夸克模型描述重子 ,已被用于研究有限核及超核的性质 .介子平均场直接与核子内的组分夸克相互作用 ,从而改变了核介质内重子的性质 .夸克平均场模型能够给出令人满意的球型核及超核的性质 ,该模型也预言了核介质中核子体积的膨胀及核子有效质量的降低 .The quark mean field model, which describes the baryon using the constituent quark model, is applied to study the properties of finite nuclei and hypernuclei. The meson mean fields couple directly with the quarks and change the properties of baryons in nuclear medium. The quark mean field model provides satisfactory results on the properties of spherical nuclei and hypernuclei. It also predicts an increasing size of the nucleon as well as a reduction of the effective mass in the nuclear environment.

关 键 词：超核 平均场 夸克 有限核 重子 核子 核介质 改变 子体 研究 

分 类 号：O572.3[理学—粒子物理与原子核物理]