https://doi.org/10.1140/epjc/s10052-007-0217-7
Regular Article - Theoretical Physics
Dark energy and neutrino CPT-violation
1
Theoretical Physics Division, IHEP, Chinese Academy of Sciences, Beijing, 100049, P.R. China
2
Key Laboratory of Particle Astrophysics, IHEP, Chinese Academy of Sciences, Beijing, 100049, P.R. China
* e-mail: pgu@ictp.it
Received:
30
November
2006
Published online:
13
February
2007
In this paper we study dynamical CPT-violation in the neutrino sector as induced by the dark energy of the universe. Specifically we consider a dark energy model where the dark energy scalar derivatively interacts with the right-handed neutrinos. This type of derivative coupling leads to cosmological CPT-violation during the evolution of the background field of the dark energy. We calculate the induced CPT-violation of left-handed neutrinos and find that the CPT-violation produced in this way is consistent with the present experimental limit and sensitive to future neutrino oscillation experiments such as the neutrino factory.
© Springer-Verlag Berlin Heidelberg, 2007
