Original scientific paper

Flavour-changing radiative top quark decay

Surath Kumar Biswas ; Theoretical Physics Department, Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700032, India
V. P. Gautam ; Theoretical Physics Department, Indian Association for the Cultivation of Science, Jadavpur, Calcutta, 700032, India

Abstract

The flavour-changing radiative decay of the t quark has been considered at one loop level in a nonlinear Rξ gauge within the standard model and beyond. The electroweak penguin diagrams involving one insertion of the W boson and/or scalar particle have been considered, and we have also calculated the contribution arising from those diagrams using the fourth generation CKM matrix elements.

Keywords

radiative t quark decay; change of flavour; nonlinear Rξ gauge; electroweak penguin diagrams; fourth generation CKM matrix

Hrčak ID:

305478

URI

https://hrcak.srce.hr/305478

Publication date:

1.9.1999.

Article data in other languages: croatian

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