Speaker
Takuya Morozumi
(Hiroshima University)
Description
"We investigate the Space time evolution of the lepton number densities.
The formulation is constructed as the time evolution of a lepton family number density operator.
The expectation value of the density operator is evaluated for the initial state with a Gaussian distribution for the momentum amplitude.
This enables us to study wave-packet-like decoherence effects.
We show in the non-relativistic regime, the type of neutrino mass (Dirac or Majorana) are distinguishable even under the presence of wave-packet-like decoherence effects."