Orateur
Description
Neutrino oscillations are among the most promising sources of information on leptonic CP
violating phase, which can be obtained from the measurement of oscillation probabilities.
Matter can both suppress and enhance those probabilities and therefore affect the prospects
for successful measurement of this quantity. In my talk, I'll summarize results of a recent
study (2005.07719) in which we analyzed oscillations of neutrinos traversing an arbitrary number of Earth layers of variable density before hitting the detector. As a result, we were able to derive very
accurate and compact analytic expressions for averaged oscillation probabilities in terms of
only two analytically calculable effective parameters, which then allowed us to estimate the
magnitude of CP violating effects in our setup and to propose an observable optimized for
such measurement
