包 含 Δ 共 振 态 的 核 物 质

包含 Δ 共振态的核物质

王红岩^1，2，特木尔·巴根^1，3，蒋红梅¹，刘广洲¹

1. 吉林大学物理学院理论物理中心，长春 130023； 2. 北华大学理学院物理系，吉林 132013；3. 内蒙古民族大学物理学院物理系，通辽 028043

收稿日期:2003-12-29 修回日期:1900-01-01 出版日期:2004-07-26 发布日期:2004-07-26
通讯作者: 刘广洲

Nuclear matter including delta isobars

WANG Hong-yan^1,2, Temur·Bagen^1,3, JIANG Hong-mei^{1, LIU Guang-zhou¹}

1. Center of Theoretical Physics, College of Physics, Jilin University, Changchun 130023, China;2. Department of Physics, College of Normal Science, Beihua University, Jilin 132013, China;3. Department of Physics, College of Physics, Inner Mongolian University for Nationalities, Tongliao 028043, China

Received:2003-12-29 Revised:1900-01-01 Online:2004-07-26 Published:2004-07-26
Contact: LIU Guang-zhou

摘要/Abstract

摘要： 在相对论平均场理论框架下研究了包括Δ共振态核物质的状态方程. 研究表明，随着Δ粒子相对数密度的增加，饱和点处的结合能下降，并向总粒子数密度增加方向移动，状态方程逐渐变软. 结果表明，包括Δ粒子的中子星物质是中子星一个可能的相结构.

关键词: 相对论平均场, Δ共振态, 状态方程

Abstract: In the theoretical framework of the relativistic mean field, nuclear matter including delta isobars is studied. An analysis shows that with the increase of the relative delta isobar density the binding energy at saturation point goes down and moves toward the direction of the increase in density, then the equation of state becomes soft. We proposed that the neutron star matter including delta isobars may be possible phase structure for neutron stars.

Key words: relativistic mean field, delta isobar, equation of state

中图分类号:

O413.3

王红岩，特木尔·巴根，蒋红梅，刘广洲. 包含 Δ 共振态的核物质[J]. J4, 2004, 42(03): 405-409.

WANG Hong-yan, Temur·Bagen, JIANG Hong-mei, LIU Guang-zhou. Nuclear matter including delta isobars[J]. J4, 2004, 42(03): 405-409.

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