Testing CPT Invariance with Neutrinos

Abstract

We investigate possible tests of CPT invariance on the level of event rates at neutrino factories. We do not assume any specific model, but phenomenological differences in the neutrino-antineutrino masses and mixing angles in a Lorentz invariance preserving context, which could be induced by physics beyond the Standard Model. We especially focus on the muon neutrino and antineutrino disappearance channels in order to obtain constraints on the neutrino-antineutrino mass and mixing angle differences. In a typical neutrino factory setup simulation, we find, for example, that $|m_3-{\bar{m}}_3|\lesssim 1.9\cdot 10^{-4}\mathrm{eV}$ and $|{\theta }_{23}-{\bar{\theta }}_{23}|\lesssim 2^{\circ }$.

4 pages, 1 figure, LaTeX. Talk presented at the XXXIst International Conference on High Energy Physics (ICHEP 2002), Amsterdam, The Netherlands, July 24-31, 2002. In collaboration with: Samoil M. Bilenky, Martin Freund, Manfred Lindner, and Walter Winter

References in corpus (9)

• Systematic Exploration of the Neutrino Factory Parameter Space including Errors and Correlations
• Interpreting the LSND anomaly: sterile neutrinos or CPT-violation or...?
• CPT Violation and the Nature of Neutrinos
• How accurately can one test CPT conservation with reactor and solar neutrino experiments?
• Medium effects for terrestrial and atmospheric neutrino oscillations
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Cited by in corpus (1)

• Atmospheric Neutrinos as a Probe of CPT Violation