CPT invariance and neutrino physics

Understand

CPT invariance in neutrino physics has attracted attention after the revival of the hypothetical idea that neutrino and antineutrino might have nonequal masses ($m_{\bar\nu} \neq m_{\nu}$) when realizing neutrino oscillations as a new sensitive phenomenon to search for the violation of this fundamental symmetry.

• Moreover, the profound relation between the CPT and Lorentz symmetries turns the studies of CPT and Lorentz invariance violations into the {\bf one two-sided} problem.
• We present a guide for non-experts through the literature on neutrino physics.
• The basic works are reviewed thoroughly while for the other papers only current results or discussion issues are quoted.