Seesaw mechanism in the sneutrino sector and its consequences
| dc.contributor.author | Dedes, A. | en |
| dc.contributor.author | Haber, H. E. | en |
| dc.contributor.author | Rosiek, J. | en |
| dc.date.accessioned | 2015-11-24T18:35:47Z | |
| dc.date.available | 2015-11-24T18:35:47Z | |
| dc.identifier.issn | 1126-6708 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/17135 | |
| dc.rights | Default Licence | - |
| dc.subject | supersymmetric standard model | en |
| dc.subject | neutrino physics | en |
| dc.subject | rare decays | en |
| dc.subject | supersymmetric standard model | en |
| dc.subject | lepton-flavor violation | en |
| dc.subject | softly broken supersymmetry | en |
| dc.subject | electric-dipole moments | en |
| dc.subject | r-parity breaking | en |
| dc.subject | neutrino masses | en |
| dc.subject | cp violation | en |
| dc.subject | dimensional reduction | en |
| dc.subject | split supersymmetry | en |
| dc.subject | massive neutrinos | en |
| dc.title | Seesaw mechanism in the sneutrino sector and its consequences | en |
| heal.abstract | The seesaw-extended MSSM provides a framework in which the observed light neutrino masses and mixing angles can be generated in the context of a natural theory for the TeV-scale. Sneutrino-mixing phenomena provide valuable tools for connecting the physics of neutrinos and supersymmetry. We examine the theoretical structure of the seesaw-extended MSSM, retaining the full complexity of three generations of neutrinos and sneutrinos. In this general framework, new flavor-changing and CP-violating sneutrino processes are allowed, and are parameterized in terms of two 3x3 matrices that respectively preserve and violate lepton number. The elements of these matrices can be bounded by analyzing the rate for rare flavor-changing decays of charged leptons and the one-loop contribution to neutrino masses. In the former case, new contributions arise in the seesaw extended model which are not present in the ordinary MSSM. In the latter case, sneutrino-antisneutrino mixing generates the leading correction at one-loop to neutrino masses, and could provide the origin of the observed texture of the light neutrino mass matrix. Finally, we derive general formulae for sneutrino-antisneutrino oscillations and sneutrino flavor-oscillations. Unfortunately, neither oscillation phenomena is likely to be observable at future colliders. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000252243700059 | - |
| heal.journalName | Journal of High Energy Physics | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2007 | - |
| 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 |
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