On finite energy monopole solutions in Weinberg-Salam model

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	On finite energy monopole solutions in Weinberg-Salam model
	Pak, DG; Zhang, PM; Zou, LP
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2015
卷号	30 期号:27 页码:1550164
关键词	Monopoles Weinberg-Salam model
通讯作者	Pak, DG (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
英文摘要	We study the problem of existence of finite energy monopole solutions in the WeinbergSalam model starting with the most general ansatz for static axially-symmetric electro-weak magnetic fields. The ansatz includes an explicit construction of field configurations with various topologies described by the monopole and Hopf charges. We introduce a unique SU(2) gauge invariant definition for the electromagnetic field. It has been proved that the magnetic charge of any finite energy monopole solution must be screened at far distance. This implies nonexistence of finite energy monopole solutions with a nonzero total magnetic charge. In the case of a special axially-symmetric Dashen-Hasslacher-Neveu ansatz, we revise the structure of the sphaleron solution and show that sphaleron represents a nontrivial system of monopole and antimonopole with their centers located in one point. This is different from the known interpretation of the sphaleron as a monopole-antimonopole pair like Nambu's "dumb-bell." In general, the axially-symmetric magnetic field may admit a helical structure. We conjecture that such a solution exists and estimate an upper bound for its energy, E-bound = 4.65 TeV.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
关键词[WOS]	MIXING ANGLE ; GAUGE-THEORY ; FIELD-THEORY ; SPHALERONS ; CONFIGURATIONS ; SPECTRUM
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20848]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Pak, DG,Zhang, PM,Zou, LP. On finite energy monopole solutions in Weinberg-Salam model[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2015,30(27):1550164.
APA	Pak, DG,Zhang, PM,&Zou, LP.(2015).On finite energy monopole solutions in Weinberg-Salam model.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,30(27),1550164.
MLA	Pak, DG,et al."On finite energy monopole solutions in Weinberg-Salam model".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 30.27(2015):1550164.