Broken mu - tau symmetry and leptonic CP violation

Rodejohann, Werner

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Broken mu - tau symmetry and leptonic CP violation

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Rodejohann, Werner
Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Rodejohann, W. (2007). Broken mu - tau symmetry and leptonic CP violation. In M. B. Ceolin (Ed.), Twelfth International Workshop on Neutrino telescopes (pp. 313-328). Padua: edizioni papergraf.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-7DB1-3

Abstract

We introduce the concept of mu - tau symmetry in the lepton sector and summarize different possibilities how to break it. These are direct breaking by modifying the mass matrix, disentangling the contributions from the neutrino and charged lepton sectors to the PMNS matrix, and Planck scale effects vs. renormalization. Leptonic CP violation aspects are crucial for all cases.