Effect of pentaquark Θ+ on the equation of state of nuclear matter

被引：0
|
作者：
Gao Yuan [1 ]
Li Xi-Guo
Li Yong-Qing
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
[3] Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION | 2007年 / 31卷 / 01期
关键词：
pentaquark Theta(+); density dependent; the energy per baryon;
D O I：
暂无
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：
Assuming Theta(+) interacts with nucleon or Theta(+) by exchanging isoscalar mesons sigma and omega, the equation of state of {p, n, Theta(+)} and possible metastable state are studied in the framwork of the density dependent relativistic hadron field theory(DDRH). The ratio of the proton isospin to the neutron isospin with different baryon densities and the effect of the Theta(+) component on the binding energy per baryon of the system are also discussed. It is shown that when the binding energy per baryon of the system takes the maximal value, Theta(+) might be bound in the nuclear matter.
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页码：48 / 51
页数：4
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