3,625 research outputs found
Extended Grimus-Stockinger theorem and inverse square law violation in quantum field theory
We study higher-order corrections to the Grimus-Stockinger theorem dealing
with the large-distance asymptotic behavior of the wave-packet modified
neutrino propagator within the framework of field-theoretical description of
the neutrino oscillation phenomenon. We discuss the possibility that these
corrections are responsible for breakdown of the classical inverse-square law
(ISL) at the macroscopic distances. In particular the ISL violation can be an
explanation of the well-known reactor antineutrino anomaly.Comment: 11 pages, no figures. Some additions are done and references are
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The Fermion Generations Problem in the Gust in the Free World-Sheet Fermion Formulation
In the framework of the four dimensional heterotic superstring with free
fermions we present a revised version of the rank eight Grand Unified String
Theories (GUST) which contain the -gauge family symmetry. We also
develop some methods for building of corresponding string models. We explicitly
construct GUST with gauge symmetry and or
and consider the full massless spectrum for our string models.
We consider for the observable gauge symmetry the diagonal subgroup
of the rank 16 group or . We discuss the possible fermion matter and Higgs sectors in
these theories. We study renormalizable and nonrenormolizable contributions to
the superpotential. There has to exist "superweak" light chiral matter () in GUST under consideration. The understanding of quark and lepton mass
spectra and family mixing leaves a possibility for the existence of an
unusually low mass breaking scale of the family gauge symmetry (some
TeV).Comment: 68 page
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