Dark Energy and Neutrino CPT Violation

Details Dark Energy and Neutrino CPT Violation Dark Energy and Neutrino CPT Violation

2005-11-03

arxiv.org/abs/hep-ph/0511027v2

Eur.Phys.J.C50:655-659,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures. Typos corrected and references added. To be published in EPJC

Scientific paper

10.1140/epjc/s10052-007-0217-7

In this paper we study the dynamical CPT violation in the neutrino sector 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 a 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 the CPT violation produced in this way is consistent with the present experimental limit and sensitive to the future neutrino oscillation experiments, such as the neutrino factory.

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