QUARK, LEPTON AND NEUTRINO MASSES IN HORAVA-WITTEN INSPIRED MODELS

Abstract

String Phenomenology, pp. 83-87 (2003) No AccessQUARK, LEPTON AND NEUTRINO MASSES IN HORAVA-WITTEN INSPIRED MODELSR. ARNOWITT, B. DUTTA and B. HUR. ARNOWITTCenter For Theoretical Physics, Department of Physics, Texas A&M University, College Station TX 77843-4242, USA, B. DUTTACenter For Theoretical Physics, Department of Physics, Texas A&M University, College Station TX 77843-4242, USAPRESENT ADDRESS: DEPARTMENT OF PHYSICS, UNIVERSITY OF REGINA, REGINA SK, S4S 0A2 CANADA. and B. HUCenter For Theoretical Physics, Department of Physics, Texas A&M University, College Station TX 77843-4242, USAhttps://doi.org/10.1142/9789812704917_0013Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: Horava-Witten M-Theory offers new ways in achieving the quark and lepton mass hierarchies not naturally available in supergravity unified models. In previous work, based on a torus fibered Calabi-Yau manifold with a del Pezzo base dP7,a three generation SU(5)model with Wilson line breaking to the Standard Model was constructed. It was seen that if the additional 5- branes clustered near the distant orbifold plane, it was possible that such models could generate the observed hierarchies of quark masses without undue fine tuning. We update these results here and extend them to include the charged leptons. A new mechanism for generating small neutrino masses (different from the ususal seesaw mechanism)arises naturally from a possible cubic holomorphic term in the Kahler potential when supersymmetry is broken. We show that the LMA solution to neutrino masses can occur, with a good fit to all neutrino oscillation data. The model implies the existance of the µ → eγ decay even for universal slepton soft breaking masses, at rates accessible to the next round of experiments. FiguresReferencesRelatedDetails String PhenomenologyMetrics History PDF download

Locations

• arXiv (Cornell University) - View - PDF
• DataCite API - View