The two-loop phi(4) kink mass

doi:10.1016/j.physletb.2021.136628

	The two-loop phi(4) kink mass
	Evslin, Jarah 1,2
刊名	PHYSICS LETTERS B
	2021-11-10
卷号	822 页码:4
ISSN号	0370-2693
DOI	10.1016/j.physletb.2021.136628
通讯作者	Evslin, Jarah(jarah@impcas.ac.cn)
英文摘要	At one loop, quantum kinks are described by a free theory. The nonlinearity and so the interesting phenomenology arrives at two loops, where, for example, internal excitations couple to continuum excitations. We calculate the two-loop mass of a scalar kink. Unlike previous calculations, we include a counterterm which cancels the vacuum energy density at this order, so that our result for the kink mass is finite even when the vacuum energy density is nonzero. This allows us to apply our result to the phi(4) kink, for which we obtain a two-loop mass contribution of 0.0126 lambda/m in terms of the coupling lambda and the meson mass m evaluated at the minimum of the potential. (C) 2021 The Author(s). Published by Elsevier B.V.
资助项目	CAS Key Research Program of Frontier Sciences grant[QYZDY-SSW-SLH006] ; NSFC[11875296] ; NSFC[11675223] ; Recruitment Program of High-end Foreign Experts
WOS关键词	SOLITON
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000700102900004
资助机构	CAS Key Research Program of Frontier Sciences grant ; NSFC ; Recruitment Program of High-end Foreign Experts
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136530]
专题	中国科学院近代物理研究所
通讯作者	Evslin, Jarah
作者单位	1.Inst Modern Phys, NanChangLu 509, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, YuQuanLu 19A, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Evslin, Jarah. The two-loop phi(4) kink mass[J]. PHYSICS LETTERS B,2021,822:4.
APA	Evslin, Jarah.(2021).The two-loop phi(4) kink mass.PHYSICS LETTERS B,822,4.
MLA	Evslin, Jarah."The two-loop phi(4) kink mass".PHYSICS LETTERS B 822(2021):4.