Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions

	Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions
	Yang, Z; Cheng, J
刊名	MODERN PHYSICS LETTERS A
	2007
卷号	22 期号:2 页码:#REF!
关键词	HBT intensity interferometry momentum correlations fermion statistics heavy-ion collisions
通讯作者	Yang, Z (reprint author), Tsinghua Univ, Dept Engn Phys, Ctr High Energy Phys, Room 429, Beijing 100084, Peoples R China.
英文摘要	The Hanbury-Brown and Twiss (HBT) effects predict a Bose-Einstein enhancement of the two-particle momentum correlations of identical bosons at small relative momentum. However, the parallel momentum correlations between identical fermions are less argued. The momentum correlations can be altered by many factors, among which the spin interaction effects are discussed in this paper. It is found that the spin interaction plays an important role on the momentum correlations of identical fermions. For spin triplet state, a full Fermi-Dirac suppression represents as expected. On the contrary, a fake Bose-Einstein enhancement shows up for spin singlet state. The measured momentum correlations of fermions could hence provide some hints of spin interactions between them if all other factors such as Coulomb interactions were removed. Spin interactions make it more complicated to extract physical information from momentum correlations between fermions.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
收录类别	SCI
WOS记录号	WOS:000250970700005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/226384]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Yang, Z,Cheng, J. Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions[J]. MODERN PHYSICS LETTERS A,2007,22(2):#REF!.
APA	Yang, Z,&Cheng, J.(2007).Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions.MODERN PHYSICS LETTERS A,22(2),#REF!.
MLA	Yang, Z,et al."Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions".MODERN PHYSICS LETTERS A 22.2(2007):#REF!.