Neutrino charge radius in the minimal supersymmetric standard model

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题名:	Neutrino charge radius in the minimal supersymmetric standard model
作者:	K.L.Ng
贡献者:	Department of Bioinformatics
日期:	1992
上传时间:	2010-03-19 08:25:00 (UTC+0)
出版者:	Asia University
摘要:	Abstract As recently suggested by Degrassi, Marciano, and Sirlin, the electromagnetic form factor of the neutrino extracted from low energy elastic scattering cross sections ofv e and can be used to define the neutrino charge radius in the Standard Model in a gauge-invariant way. The complete one-loop contributions to the form factor consist not only the induced vertex but also the Z vertex corrections and theW andZ propagators arise from the counterterm diagrams, and theWW andZZ box diagrams. We show that the neutrino charge radius is a finite and gauge independent quantity in the Minimal Supersymmetric Standard Model. We consider only the oblique corrections to the neutrino charge radius in our numerical work, because the vertex and box contributions are small. The dependence of the oblique corrections on the supersymmetric parameters in each of the three sectors: Higgs, scalar matter and gaugino sectors are studied by taking into account of the current experimental bounds from LEP.
關聯:	Zeitschrift f?r Physik C Particles and Fields 55: 145-152
显示于类别:	[生物資訊與醫學工程學系 ] 期刊論文

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