A NEW EVALUATION OF THE T-]CH DECAY WIDTH IN THE STANDARD MODEL

Authors
MELE B PETRARCA S SODDU A
Citation
B. Mele et al., A NEW EVALUATION OF THE T-]CH DECAY WIDTH IN THE STANDARD MODEL, Physics letters. Section B, 435(3-4), 1998, pp. 401-406
Citations number
28
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
435
Issue
3-4
Year of publication
1998
Pages
401 - 406
Database
ISI
SICI code
0370-2693(1998)435:3-4<401:ANEOTT>2.0.ZU;2-K
Abstract
We present a new calculation of the t --> cH decay rate in the standar d model. We find that the corresponding branching fraction is B(t --> cH) similar or equal to 10(-13) divided by 10(-14) for M-z less than o r similar to m(H) less than or similar to 2 M-w, that is about 6 order s of magnitude less than previously evaluated, and usually quoted in t he literature. (C) 1998 Published by Elsevier Science B.V. All rights reserved.