Neutrino symmetries from high to low scales
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005 (India)
Proposed symmetry relations, e.g., quark-lepton complementarity (QLC) or tribimaximal mixing (TBM), need to be imposed at a high scale and {approx}10{sup 12} GeV characterising the large masses of right-handed neutrinos required to implement the seesaw mechanism. RG evolution down to the laboratory scale {lambda}{approx}10{sup 3} GeV, generically prone to spoil these relations and their predicted neutrino mixing patterns, can be made to preserve them by appropriately constraining the Majorana phases {alpha}{sub 2,3}. This is explicitly demonstrated in the MSSM for two versions of QLC and two versions of TBM. A preference for {alpha}{sub 2}{approx_equal}{pi} (i.e. m{sub 1}{approx_equal}-m{sub 2}) emerges in each case. Discrimination among the four cases is shown to be possible by future measurements of {theta}{sub 13}.
- OSTI ID:
- 21035966
- Journal Information:
- AIP Conference Proceedings, Vol. 939, Issue 1; Conference: International workshop on theoretical high energy physics, Roorkee (India), 15-20 Mar 2007; Other Information: DOI: 10.1063/1.2803817; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Quark-lepton complementarity and tribimaximal neutrino mixing from discrete symmetry
Corrections to tribimaximal neutrino mixing: Renormalization and Planck scale effects