Speaker
Mikhail Shaposhnikov
(EPFL Lausanne)
Description
The Standard Model cannot explain neutrino masses and oscillations, does
not provide a candidate for dark matter particle and does not explain
why the universe contains more matter than antimatter. A unified
solution of these problems appears if the neutral fermion sector of the
Standard Model is constructed in analogy with the structures we have in
quarks or in charged leptons. Namely, every left-handed fermion can be
required to have its right-handed counterpart. The properties of the new
particles - relatively light neutral leptons, can be severely
constrained by existing experiments and cosmology. Their mass is
expected to be in a few GeV region, while their couplings to ordinary
leptons are bounded both from above and from below. We will argue that
the dedicated experiments with the use of intensive SPS and PS beams can
provide an excellent opportunity for sensitive searches for
these new particles.
Summary
The same as abstract
Primary author
Mikhail Shaposhnikov
(EPFL Lausanne)
Co-authors
Dr
Dmitry Gorbunov
(INR, Moscow)
Dr
Sergei Gninenko
(INR, Moscow and CERN)
