Search for the rare decays pi(+)->mu(+)nu(mu)nu(nu)over-bar and pi(+)-> e(+)nu(e)nu(nu)over-bar

Aguilar-Arevalo, A; Aoki, M; Blecher, M; Britton, DI; vom Bruch, D; Bryman, DA; Chen, S; Comfort, J; Cuen-Rochin, S; Doria, L; Gumplinger, P; Hussein, A; Igarashi, Y; Ito, S; Kettell, S; Kurchaninov, L; Littenberg, LS; Malbrunot, C; Mischke, RE; Numao, T; Protopopescu, D; Sher, A; Sullivan, T; Vavilov, D; Gorbunov, D; Kalashnikov, D

Ito, S (corresponding author), Osaka Univ, Phys Dept, Toyonaka, Osaka 5600043, Japan.

PHYSICAL REVIEW D, 2020; 102 (1):

Abstract

The rare pion decays pi(+)->mu(+)nu(mu)nu(nu) over bar and pi(+)-> e(+)nu(e)nu(nu) over bar are allowed in the Standard Model but highly suppres......

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