Phys. Rev. D 30, 1605–1608 (1984)Two- and three-pion production by νμd reactions near threshold: The implications for nucleon-decay experiments
We use νμ-deuteron reactions into exclusive multipion final states to determine the extent to which atmospheric ν interactions can imitate nucleon decay. For decays N→lcπcπc (lcπcπcπ0), neutrinos induce background events at the rate 0.07±0.06 (0.03±0.02) per kiloton year. By requiring a multipion final state to be consistent with a ρ, ω, or η, a fivefold reduction of the background is obtained. Thus presentgeneration experiments are capable of searching for such decays at a lifetime level corresponding to many kiloton years of detector exposure. © 1984 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.30.1605
DOI:
10.1103/PhysRevD.30.1605
PACS:
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