Stodolsky effect in the framework of general neutrino interactions

by Ujjal Kumar Dey (IISER Berhampur)

Thursday 9 Jul 2026, 16:00 → 17:00 Australia/Sydney

Stodolsky effect is a spin-dependent energy shift experienced by electrons usually induced by a neutrino background. Historically it has been discussed in the context of cosmic neutrino background detection. In this talk we will discuss the Stodolsky effect utilizing the most general form of neutrino interactions with electrons by considering all possible Lorentz invariant operators respecting the symmetry of the Standard Model. We consider both Dirac and Majorana neutrinos and find that in the most general setting, only the non-standard neutrino interactions and the tensor interaction terms provide a non-zero contribution, apart from the Standard Model contribution. We investigate the implications for the possible detection of the cosmic neutrino background by analysing the energy shifts that are characteristic of the Stodolsky effect.