| Автор | Michaela E. Albrecht |
| Автор | Wolfgang Altmannshofer |
| Автор | Andrzej J. Buras |
| Автор | Diego Guadagnoli |
| Автор | David M. Straub |
| Дата выпуска | 2007-10-01 |
| dc.description | We perform a detailed analysis of the SO(10) SUSY GUT model with D<sub>3</sub> family symmetry of Dermíšek and Raby (DR). The model is specified in terms of 24 parameters and predicts, as a function of them, the whole MSSM set of parameters at low energy scales. Concerning the SM subset of such parameters, the model is able to give a satisfactory description of the quark and lepton masses, of the PMNS matrix and of the CKM matrix. We perform a global fit to the model, including flavour changing neutral current (FCNC) processes B<sub>s</sub> μ<sup>+</sup>μ<sup>−</sup>, B X<sub>s</sub>γ, B X<sub>s</sub>ℓ<sup>+</sup>ℓ<sup>−</sup> and the B<sub>d,s</sub>−B̅<sub>d,s</sub> mass differences ΔM<sub>d,s</sub> as well as the flavour changing (FC) process B<sup>+</sup> τ<sup>+</sup>ν. These observables provide at present the most sensitive probe of the SUSY mass spectrum and couplings predicted by the model. Our analysis demonstrates that the simultaneous description of the FC observables in question represents a serious challenge for the DR model, unless the masses of the scalars are moved to regions which are problematic from the point of view of naturalness and probably beyond the reach of the LHC. We emphasize that this problem could be a general feature of SUSY GUT models with third generation Yukawa unification and weak-scale minimal flavour violation. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Challenging SO(10) SUSY GUTs with family symmetries through FCNC processes |
| Тип | paper |
| DOI | 10.1088/1126-6708/2007/10/055 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2007 |
| Первая страница | 55 |
| Последняя страница | 055 |
| Аффилиация | Michaela E. Albrecht; Physik-Department, Technische Universität München, D-85748 Garching, Germany |
| Аффилиация | Wolfgang Altmannshofer; Physik-Department, Technische Universität München, D-85748 Garching, Germany |
| Аффилиация | Andrzej J. Buras; Physik-Department, Technische Universität München, D-85748 Garching, Germany |
| Аффилиация | Diego Guadagnoli; Physik-Department, Technische Universität München, D-85748 Garching, Germany |
| Аффилиация | David M. Straub; Physik-Department, Technische Universität München, D-85748 Garching, Germany |
| Выпуск | 10 |
