Abstract
A search for the decays K+→π+νν̄ and K+→π+X0, where X0 is any weakly interacting neutral particle or system of neutral particles with 150<MX0<250 MeV/c2, was performed in the pion kinematic region below the Kπ2 (K+→π+π0) peak. An upper limit on B(K+→π+νν̄) is set at 1.7 × 10-8 (90% C.L.) and B(K+→π+X0) is restricted to the 10-7 level or lower. Limits are also set for the production of K+→π+νν̄ through scalar or tensor interactions at 1.8 × 10-8 and 1.0 × 10-8 (90% C.L.), respectively.
Original language | English (US) |
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Pages (from-to) | R1-R4 |
Journal | Physical Review D |
Volume | 48 |
Issue number | 1 |
DOIs | |
State | Published - 1993 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics