2005/11/30 by Pei-Hong Gu, Xiao-Jun Bi, Xinmin Zhang
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-007-0217-7
published as Eur.Phys.J.C50:655-659,2007 · 10 pages, 2 figures. Typos corrected and references added. To be published in EPJC
arxiv created 2007/02/05 · openalex publication_date 2007/02/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.