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Search for Heavy Neutrino in K->mu nu_h(nu_h-> nu gamma) Decay at ISTRA+ Setup
- Source :
- Phys.Lett.B710:307-317,2012
- Publication Year :
- 2011
-
Abstract
- Heavy neutrino nu_h with m_h < 300MeV/c^2 can be effectively searched for in kaon decays. We put upper limits on mixing matrix element |U_mu_h}|^2 for radiatively decaying nu_h from K->mu nu_h (nu_h -> nu gamma) decay chain in the following parameter region: 30MeV/c^2 < m_h < 80MeV/c^2; 10^{-11}sec < tau_h < 10^{-9}sec. For the whole region |U_{mu h}|^2 < 5 x 10^{-5} for Majorana type of nu_h and | U_{\mu h}|^2 < 8 x 10^{-5} for the Dirac case.<br />Comment: Published in Phys. Lett. B
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys.Lett.B710:307-317,2012
- Publication Type :
- Report
- Accession number :
- edsarx.1110.1610
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physletb.2012.02.087