Helicity of spin-extended chiral particles

doi:10.1016/j.physleta.2016.03.016

	Helicity of spin-extended chiral particles
	Elbistan, M.1; Duval, C.2; Horvathy, P. A.1,3; Zhang, P. -M.1
刊名	PHYSICS LETTERS A
	2016-04-29
卷号	380 页码:1677-1683
关键词	Helicity Chiral particle Poincare invariance
ISSN号	0375-9601
DOI	10.1016/j.physleta.2016.03.016
英文摘要	The helicity of a free massless relativistic particle, chi(0) = s.P/vertical bar P vertical bar, is generalized, for a particle in an electromagnetic field, to chi = s . p/epsilon where epsilon is energy. Both chi(0) and chi coincide and are conserved for minimal coupling (gyromagnetic ratio g = 0) but are different and neither of them is conserved when the coupling is non-minimal, g not equal 0, generating non-zero effective mass. For a chiral particle with g = 2 in a constant electric field both helicities converge asymptotically to the same value. Helicity is also conserved for minimal gravitational coupling. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	Major State Basic Research Development Program in China[2015CB856903] ; National Natural Science Foundation of China[11035006] ; National Natural Science Foundation of China[11175215]
WOS关键词	ELECTROMAGNETIC-FIELD ; BERRY PHASE ; FERMIONS ; ELECTRON ; DYNAMICS ; MODEL
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000374601200001
资助机构	Major State Basic Research Development Program in China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/42552]
专题	中国科学院近代物理研究所
通讯作者	Elbistan, M.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 2.Univ Sud Toulon Var, Aix Marseille Univ, CNRS, UMR 7332, F-13288 Marseille 9, France 3.Univ Tours, Lab Math & Phys Theor, F-37041 Tours, France
推荐引用方式 GB/T 7714	Elbistan, M.,Duval, C.,Horvathy, P. A.,et al. Helicity of spin-extended chiral particles[J]. PHYSICS LETTERS A,2016,380:1677-1683.
APA	Elbistan, M.,Duval, C.,Horvathy, P. A.,&Zhang, P. -M..(2016).Helicity of spin-extended chiral particles.PHYSICS LETTERS A,380,1677-1683.
MLA	Elbistan, M.,et al."Helicity of spin-extended chiral particles".PHYSICS LETTERS A 380(2016):1677-1683.