M. Hirsch, J. Romão, S. Skadhauge, J. Valle, Albert Villanova del Moral
{"title":"Degenerate neutrinos from a supersymmetric A4 model","authors":"M. Hirsch, J. Romão, S. Skadhauge, J. Valle, Albert Villanova del Moral","doi":"10.22323/1.010.0010","DOIUrl":"https://doi.org/10.22323/1.010.0010","url":null,"abstract":"We investigate the supersymmetric A_4 model recently proposed by Babu, Ma and Valle. The model naturally gives quasi-degenerate neutrinos that are bi-largely mixed, in agreement with observations. Furthermore, the mixings in the quark sector are constrained to be small, making it a complete model of the flavor structure. Moreover, it has the interesting property that CP-violation in the leptonic sector is maximal (unless vanishing). The model exhibit a close relation between the slepton and lepton sectors and we derive the slepton spectra that are compatible with neutrino data and the present bounds on flavor-violating charged lepton decays. The prediction for the branching ratio of the decay tau -> mu gamma has a lower limit of 10^{-9}. In addition, the overall neutrino mass scale is constrained to be larger than 0.3 eV. Thus, the model will be tested in the very near future.","PeriodicalId":340808,"journal":{"name":"Proceedings of International Workshop on Astroparticle and High Energy Physics — PoS(AHEP2003)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121707760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}