YANG, JM , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
部门归属:
ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; HENAN NORMAL UNIV,DEPT PHYS,XINXIANG 453002,PEOPLES R CHINA; CHONGQING UNIV,DEPT APPL PHYS,SICHUAN 630044,PEOPLES R CHINA
英文摘要:
The one-loop electroweak contributions of genuine supersymmetric particles (charginos, neutralinos and sfermions) to the SM top decay t --> W+ b are calculated in the minimal supersymmetric model. The analytic expression is given for the renormalized decay rate. The numerical example shows that the corrections can reduce the width by a few percent if the squarks take their lowest allowed masses. Also, we compare these corrections with the corrections of SUSY QCD and extra Higgs bosons.
