Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-01-15
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
3 pages; contribution to appear in the Proceedings of the MG11 Meeting on General Relativity, Berlin, July 23-29, 2006; prepar
Scientific paper
We show that under gravity the effective masses for neutrino and antineutrino are different which opens a possible window of neutrino-antineutrino oscillation even if the rest masses of the corresponding eigenstates are same. This is due to CPT violation and possible to demonstrate if the neutrino mass eigenstates are expressed as a combination of neutrino and antineutrino eigenstates, as of the neutral kaon system, with the plausible breaking of lepton number conservation. In early universe, in presence of various lepton number violating processes, this oscillation might lead to neutrino-antineutrino asymmetry which resulted baryogenesis from the B-L symmetry by electro-weak sphaleron processes. On the other hand, for Majorana neutrinos, this oscillation is expected to affect the inner edge of neutrino dominated accretion disks around a compact object by influencing the neutrino sphere which controls the accretion dynamics, and then the related type-II supernova evolution and the r-process nucleosynthesis.
No associations
LandOfFree
Possible Neutrino-Antineutrino Oscillation Under Gravity and its Consequences does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Possible Neutrino-Antineutrino Oscillation Under Gravity and its Consequences, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible Neutrino-Antineutrino Oscillation Under Gravity and its Consequences will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-584730