Leptogenesis with Friedberg-Lee Symmetry

Abstract

We consider the $\mu -\tau$ symmetric Friedberg-Lee (FL) symmetry for the neutrino sector and show that a specific FL translation leads to the tribimaximal mixing pattern of the Maki-Nakagawa-Sakata (MNS) matrix. We also apply the symmetry to the type-I seesaw framework and address the baryon asymmetry of the universe through the leptogenesis mechanism. We try to establish a relation between the net baryon asymmetry and CP phases included in the MNS matrix.

Talk given at International Workshop on Dark Matter, Dark Energy and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, 20-21 Nov. 2009, to be published in Modern Physics Letters A, reference added

References in corpus (12)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Results from a search for the $0\nu \beta \beta$-decay of ${}^{130}Te$
• Connecting Leptogenesis to CP Violation in Neutrino Mixings in a Tri-bimaximal Mixing model
• A dynamical approach to link low energy phases with leptogenesis
• Friedberg-Lee Symmetry Breaking and Its Prediction for theta_13
• Hidden Symmetry of the CKM and Neutrino Mapping Matrices
• Neutrino oscillations, global analysis and theta(13)
• Neutrino Sector with Majorana Mass Terms and Friedberg-Lee Symmetry
• Generalization of Friedberg-Lee Symmetry
• Tri-Bimaximal Mixing from Twisted Friedberg-Lee Symmetry
• Generic Friedberg-Lee Symmetry of Dirac Neutrinos
• Leptogenesis in a model with Friedberg-Lee symmetry