Searches for heavy neutrinos in the decays of positively charged kaons
According to predictions of the ν MSM model, a heavy neutrino may exist in the mass range below 1 GeV. Searches for rare kaon decays make it possible to study the heavy-neutrino-mass range M π < m ν H < M K . A preliminary analysis of data from the E949 experiment performed at the Brookhaven N...
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Veröffentlicht in: | Physics of atomic nuclei 2011-05, Vol.74 (5), p.788-793 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
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Zusammenfassung: | According to predictions of the
ν
MSM model, a heavy neutrino may exist in the mass range below 1 GeV. Searches for rare kaon decays make it possible to study the heavy-neutrino-mass range
M
π
<
m
ν
H
<
M
K
. A preliminary analysis of data from the E949 experiment performed at the Brookhaven National Laboratory (BNL, USA) is performed in the present study. Basic background processes are studied, and it is shown that a sensitivity at a level of 4 × 10
−8
to the
K
+
→ µ
+
ν
H
branching ratio can be reached for the mass value of
m
ν
H
= 250 MeV. |
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ISSN: | 1063-7788 1562-692X |
DOI: | 10.1134/S1063778811050206 |