Speaker
Dr.
Victor Semikoz
(IZMIRAN)
Description
The neutrino asymmetry can be generated due to the Berry curvature
in the momentum space that modifies the known Boltzmann equations
for neutrinos and antineutrinos interacting with plasma in Standard Model
both before and after electroweak phase transition in early Universe.
If magnetic fields are unstable due to neutrino
asymmetry one can put a lower bound on that asymmetry in agreement
with the known (Dolgov et al. 2002) upper (BBN) bound $\xi_{\nu_e}\leq 0.07$
for electron neutrinos.
Primary author
Dr.
Victor Semikoz
(IZMIRAN)
