Leading supersymmetric electroweak corrections to top quark decay into a neutralino and light stop

Authors
Yang, YS Li, CS Cao, QH Liu, HX
Citation
Ys. Yang et al., Leading supersymmetric electroweak corrections to top quark decay into a neutralino and light stop, COMM TH PHY, 33(1), 2000, pp. 21-26
Citations number
31
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN journal
02536102 → ACNP
Volume
33
Issue
1
Year of publication
2000
Pages
21 - 26
Database
ISI
SICI code
0253-6102(20000130)33:1<21:LSECTT>2.0.ZU;2-F
Abstract
We calculate the leading supersymmetric electroweak corrections to t --> (t ) over tilde(1)<(chi)over tilde>(0)(j) using dimensional reduction scheme w ithin an approximation of low tan beta, which can easily be extended to t - -> <(chi)over tilde>(+)(j)(b) over tilde(i). The numerical results show tha t such corrections can exceed -12% for tan beta = 2 and -6% for tan beta = 11, respectively. And these corrections vary insensitively with m((t) over tilde 1) in the region allowed by the kinematics except for ones near the t hreshold.