# Semileptonic decays of charmed and beauty baryons with sterile neutrinos in the final state.

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Semileptonic decays of charmed and beauty baryons with sterile neutrinos in the final state

Decays of mesons: 1) D s l + N 2) D K + l + N 3) B D* + l + N Decays of baryons: 1) Λ c Λ + l + N 2) Λ b Λ c +l + N Decays of mesons and baryons that give the biggest contribution to production of sterile neutrinos

Matrix element

Λ c Λ + l + N M N, GeV Branching ratio Br as the function of sterile neutrino mass M N

Λ b Λ c + l + N M N, GeV Branching ratio Br as the function of sterile neutrino mass M N

Λ c Λ + l + N E Λ, GeV Differential branching ratiosover the outgoing baryon energy E Λ

Λ b Λ c + l + N E Λ c, GeV Differential branching ratiosover the outgoing baryon energy E Λ c

Λ c Λ + l + N E l, GeV Differential branching ratiosover charged lepton energy E l

Λ b Λ c + l + N E l, GeV Differential branching ratiosover charged lepton energy E l

Λ c Λ + l + N E N, GeV Differential branching ratiosover charged lepton energy E N

Λ b Λ c + l + N E N, GeV over charged lepton energy E N Differential branching ratios

Comparing of branching ratios

Constrains on mixing angles at sterile neutrino masses ranging within 2 < M N < 3 GeV (PRS collaboration), but these constrains seem to be very weak. Accordingly to the results of NuTeV collaboration: ifGeV

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