Search for the decay K+ → π+νν¯

S. Adler, M. S. Atiya, I. H. Chiang, J. S. Frank, J. S. Haggerty, T. F. Kycia, K. K. Li, L. S. Littenberg, A. Sambamurti, A. Stevens, R. C. Strand, C. Witzig, W. C. Louis, D. S. Akerib, M. Ardebili, M. R. Convery, M. M. Ito, D. R. Marlow, R. A. McPherson, P. D. MeyersM. A. Selen, F. C. Shoemaker, A. J.S. Smith, E. W. Blackmore, D. A. Bryman, L. Felawka, P. Kitching, A. Konaka, V. A. Kujala, Y. Kuno, J. A. Macdonald, T. Nakano, T. Numao, P. Padley, J. M. Poutissou, R. Poutissou, J. Roy, R. Soluk, A. S. Turcot

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

An upper limit on the branching ratio for the decay K+ → π + νν¯ is set at 2.4 × 10−9 at the 90\% C.L. using pions in the kinematic region 214 MeV/c < Pπ < 231 MeV/c. An upper limit of 5.2 × 10−10 is found on the branching ratio for decays K+ → π+X0, where X0 is any massless, weakly interacting neutral particle. Limits are also set for cases where MX0 > 0.

Original languageEnglish (US)
Pages (from-to)1421-1424
Number of pages4
JournalPhysical review letters
Volume76
Issue number9
DOIs
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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