U(1) textures and lepton flavor violation
| dc.contributor.author | Gomez, M. E. | en |
| dc.contributor.author | Leontaris, G. K. | en |
| dc.contributor.author | Lola, S. | en |
| dc.contributor.author | Vergados, J. D. | en |
| dc.date.accessioned | 2015-11-24T18:39:33Z | |
| dc.date.available | 2015-11-24T18:39:33Z | |
| dc.identifier.issn | 0556-2821 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/17454 | |
| dc.rights | Default Licence | - |
| dc.subject | broken supersymmetric theories | en |
| dc.subject | neutrino mass matrices | en |
| dc.subject | number-nonconservation | en |
| dc.subject | unified theories | en |
| dc.subject | supergravity theories | en |
| dc.subject | yukawa couplings | en |
| dc.subject | gauge symmetries | en |
| dc.subject | standard model | en |
| dc.subject | string models | en |
| dc.subject | muon-number | en |
| dc.title | U(1) textures and lepton flavor violation | en |
| heal.abstract | U(1) family symmetries have led to successful predictions of the fermion mass spectrum and the mixing angles of the hadronic sector. In the context of the supersymmetric unified theories, they further imply a nontrivial mass structure for the scalar partners, giving rise to new sources of flavor violation. In the present work lepton flavor nontonserving_processes are examined in the context of the minimal supersymmetric standard model augmented by a U(1)-family symmetry. We calculate the mixing effects on the mu-->e gamma and tau-->mu gamma rare decays. All supersymmetric scalar masses involved in the processes are determined at low energies using two loop renormalization group analysis and threshold corrections. Further, various novel effects are considered and found to have important impact on the branching ratios. Thus, a rather interesting result is that when the seesaw mechanism is applied in the 12x12 sneutrino mass matrix, the mixing effects of the Dirac matrix in the effective light sneutrino sector are canceled at first order. In this class of models and for the case that soft term mixing is already present at the GUT scale, tau-->mu gamma decays are mostly expected to arise at rates significantly smaller than the current experimental Limits. On the other hand, the mu-->e gamma rare decays impose important bounds on the model parameters, particularly on the supersymmetric scalar mass spectrum. In the absence of soft term mixing at high energies, the predicted branching ratios for rare decays are, as expected, well below the experimental bounds. [S0556-2821(99)08809-8]. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000080778900069 | - |
| heal.journalName | Physical Review D | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1999 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
Αρχεία
Πρωτότυπος φάκελος/πακέτο
1 - 1 of 1
Φόρτωση...
- Ονομα:
- leontaris-1999-U(1) textures and lepton flavor violation.pdf
- Μέγεθος:
- 230.36 KB
- Μορφότυπο:
- Item-specific Creative Commons license agreed upon to submission
Φάκελος/Πακέτο αδειών
1 - 1 of 1
Φόρτωση...
- Ονομα:
- license.txt
- Μέγεθος:
- 1.74 KB
- Μορφότυπο:
- Item-specific license agreed upon to submission
- Περιγραφή: