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Bai, D; Wu, YL; Bai, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Bai, D (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
Quadratic contributions of softly broken supersymmetry in the light of loop regularization
发表期刊EUROPEAN PHYSICAL JOURNAL C
语种英语
摘要Loop regularization (LORE) is a novel regularization scheme in modern quantum field theories. It makes no change to the spacetime structure and respects both gauge symmetries and supersymmetry. As a result, LORE should be useful in calculating loop corrections in supersymmetry phenomenology. To further demonstrate its power, in this article we revisit in the light of LORE the old issue of the absence of quadratic contributions (quadratic divergences) in softly broken supersymmetric field theories. It is shown explicitly by Feynman diagrammatic calculations that up to two loops the Wess-Zumino model with soft supersymmetry breaking terms (WZ' model), one of the simplest models with the explicit supersymmetry breaking, is free of quadratic contributions. All the quadratic contributions cancel with each other perfectly, which is consistent with results dictated by the supergraph techniques.
2017
卷号77期号:9页码:617
学科领域Physics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-017-5201-2
项目资助者National Science Foundation of China (NSFC) [11690022, 11475237] ; National Science Foundation of China (NSFC) [11690022, 11475237] ; National Science Foundation of China (NSFC) [11690022, 11475237] ; National Science Foundation of China (NSFC) [11690022, 11475237] ; Chinese Academy of Sciences (CAS) [XDB23030100] ; Chinese Academy of Sciences (CAS) [XDB23030100] ; Chinese Academy of Sciences (CAS) [XDB23030100] ; Chinese Academy of Sciences (CAS) [XDB23030100] ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP) ; CAS Center for Excellence in Particle Physics (CCEPP)
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21965
专题理论物理所科研产出_SCI论文
通讯作者Bai, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Bai, D (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
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Bai, D,Wu, YL,Bai, D ,et al. Quadratic contributions of softly broken supersymmetry in the light of loop regularization[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(9):617.
APA Bai, D,Wu, YL,Bai, D ,&Bai, D .(2017).Quadratic contributions of softly broken supersymmetry in the light of loop regularization.EUROPEAN PHYSICAL JOURNAL C,77(9),617.
MLA Bai, D,et al."Quadratic contributions of softly broken supersymmetry in the light of loop regularization".EUROPEAN PHYSICAL JOURNAL C 77.9(2017):617.
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