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, Daniel Robert Marlow, R. A. McPherson, Peter Daniel 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

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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 - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Adler, S., Atiya, M. S., Chiang, I. H., Frank, J. S., Haggerty, J. S., Kycia, T. F., Li, K. K., Littenberg, L. S., Sambamurti, A., Stevens, A., Strand, R. C., Witzig, C., Louis, W. C., Akerib, D. S., Ardebili, M., Convery, M. R., Ito, M. M., Marlow, D. R., McPherson, R. A., ... Turcot, A. S. (1996). Search for the decay K+ → π+νν¯. Physical review letters, 76(9), 1421-1424. https://doi.org/10.1103/PhysRevLett.76.1421