Third family corrections to tri-bimaximal lepton mixing and a new sum rule
Antusch, Stefan, King, Stephen F. and Malinsky, Michal (2007) Third family corrections to tri-bimaximal lepton mixing and a new sum rule. Pre-print, 1-5. (arXiv:0711.4727v2).
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Description/Abstract
We investigate the theoretical stability of the predictions of tri-bimaximal neutrino mixing with respect to third family wave-function corrections. Such third family wave-function corrections can arise from either the canonical normalisation of the kinetic terms or renormalisation group running effects. At leading order both sorts of corrections can be subsumed into a single universal parameter. For hierarchical neutrinos, this leads to a new testable lepton mixing sum rule 's = r cos delta + 2/3 a' (where s, r, a describe the deviations of solar, reactor and atmospheric mixing angles from their tri-bimaximal values, and 'delta' is the observable Dirac CP phase) which is stable under all leading order third family wave-function corrections, as well as Cabibbo-like charged lepton mixing effects.
| Item Type: | Article |
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| Related URLs: | |
| Subjects: | Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Physics and Astronomy |
| Item ID: | 56982 |
| Date Deposited: | 13 Aug 2008 |
| Last Modified: | 02 Mar 2012 12:51 |
| Contributors: | Antusch, Stefan (Author) King, Stephen F. (Author) Malinsky, Michal (Author) |
| Date: | 5 December 2007 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/56982 |
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