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hep-ph2005
Dark Energy and Right-Handed Neutrinos
Riccardo Barbieri, Lawrence J. Hall, Steven J. Oliver +1
We explore the possibility that a CP violating phase of the neutrino mass matrix is promoted to a pseudo-Goldstone-boson field and is identified as the quintessence field for Dark…
hep-ph2003
CMB Signals of Neutrino Mass Generation
Z. Chacko, Lawrence J. Hall, Takemichi Okui +1
We propose signals in the cosmic microwave background to probe the type and spectrum of neutrino masses. In theories that have spontaneous breaking of approximate lepton flavor sym…