Neutrinos as the messengers of CPT violation

Details Neutrinos as the messengers of CPT violation Neutrinos as the messengers of CPT violation

2001-08-23

arxiv.org/abs/hep-ph/0108199v2

JHEP 0210 (2002) 001

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages latex, 1 eps fig, footnote added, enhanced referencing

Scientific paper

10.1088/1126-6708/2002/10/001

CPT violation has the potential to explain all three existing neutrino anomalies without enlarging the neutrino sector. CPT violation in the Dirac mass terms of the three neutrino flavors preserves Lorentz invariance, but generates independent masses for neutrinos and antineutrinos. This specific signature is strongly motivated by braneworld scenarios with extra dimensions, where neutrinos are the natural messengers for Standard Model physics of CPT violation in the bulk. A simple model of maximal CPT violation is sufficient to explain the exisiting neutrino data quite neatly, while making dramatic predictions for the upcoming KamLAND and MiniBooNE experiments. Furthermore we obtain a promising new mechanism for baryogenesis.

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