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The b -> s gamma decay in SUSY models with non-universal A-terms

GABRIELLI, Emidio
•
S. Khalil
•
E. Torrente Lujan
2001
  • journal article

Periodico
NUCLEAR PHYSICS. B
Abstract
We analyse the predictions for the inclusive branching ratio for B --> X(s)gamma in a class of string-inspired SUSY models with non-universal soft-breaking A-terms. These models are particularly interesting since the non-universality of the A-terms plays an important role in providing new significant contributions to CP violation effects in kaon physics while respecting the severe bounds on electric dipole moments. We show that b --> s gamma do not severely constrain the non-universality of these models. In particular, at low tan B (tan B similar or equal to 2), our predictions are close to the universal case. For large tan beta (tan beta greater than or similar to 15), the effect of non-universality is enhanced and stronger constraints hold. We find that the parameter regions which are important for generating sizeable contribution to epsilon'/epsilon, of order 2 x 10(-3), are not excluded. (C) 2001 Elsevier Science B.V. All rights reserved.
DOI
10.1016/S0550-3213(00)00597-6
Archivio
http://hdl.handle.net/11368/2634211
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0002363184
Diritti
metadata only access
Soggetti
  • supersimmetria

  • B mesons

Web of Science© citazioni
20
Data di acquisizione
Mar 15, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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