Quantum field-theoretical description of neutrino and neutral kaon oscillationsстатья
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
Аннотация:It is shown that the neutrino and neutral kaon oscillation
processes can be consistently described in quantum field theory
using only plane waves of the mass eigenstates of neutrinos and
neutral kaons. To this end the standard perturbative S-matrix
formalism is modified so that it can be used for calculating the
amplitudes of the processes passing at finite distances and finite
time intervals. The distance-dependent and time-dependent parts of
the amplitudes of the neutrino and neutral kaon oscillation
processes are calculated and the results turn out to be in accord
with those of the standard quantum mechanical description of these
processes based on the notion of neutrino flavor states and
neutral kaon states with definite strangeness. However, the
physical picture of the phenomena changes radically: now there are
no oscillations of flavor or definite strangeness states, but,
instead of it, there is interference of amplitudes due to
different virtual mass eigenstates.