Search for the Decay K+ -> pi+ pi0 nu nubar

E787; :; S. Adler; M. Aoki; M. Ardebili; M. S. Atiya; P. C. Bergbusch; E. W. Blackmore; D. A. Bryman; I-H. Chiang; M. R. Convery; M. V. Diwan; J. S. Frank; J. S. Haggerty; T. Inagaki; M. M. Ito; S. Kabe; S. H. Kettell; Y. Kishi; P. Kitching; M. Kobayashi; T. K. Komatsubara; A. Konaka; Y. Kuno; M. Kuriki; T. F. Kycia; K. K. Li; L. S. Littenberg; J. A. Macdonald; R. A. McPherson; P. D. Meyers; J. Mildenberger; N. Muramatsu; T. Nakano; C. Ng; T. Numao; J. -M. Poutissou; R. Poutissou; G. Redlinger; T. Sato; T. Shinkawa; F. C. Shoemaker; R. Soluk; J. R. Stone; R. C. Strand; S. Sugimoto; C. Witzig; Y. Yoshimura

doi:10.1103/physrevd.63.032004

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Search for the Decay K+ -> pi+ pi0 nu nubar

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Abstract

The first search for the decay K^+ -> pi^+ pi^0 nu nubar has been performed with the E787 detector at BNL. Based on zero events observed in the kinematical search region defined by 90 MeV/c < P_{pi^+} < 188 MeV/c and 135 MeV < E_{pi^0} < 180 MeV, an upper limit B(K^+ -> pi^+ pi^0 nu nubar) < 4.3 x 10^{-5} at 90% confidence level is established.

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E787, :, S. Adler, M. Aoki, M. Ardebili, M. S. Atiya, P. C. Bergbusch, E. W. Blackmore, D. A. Bryman, I-H. Chiang, M. R. Convery, M. V. Diwan, J. S. Frank, J. S. Haggerty, T. Inagaki, M. M. Ito, S. Kabe, S. H. Kettell, Y. Kishi, P. Kitching, M. Kobayashi, T. K. Komatsubara, A. Konaka, Y. Kuno, M. Kuriki, T. F. Kycia, K. K. Li, L. S. Littenberg, J. A. Macdonald, R. A. McPherson, P. D. Meyers, J. Mildenberger, N. Muramatsu, T. Nakano, C. Ng, T. Numao, J. -M. Poutissou, R. Poutissou, G. Redlinger, T. Sato, T. Shinkawa, F. C. Shoemaker, R. Soluk, J. R. Stone, R. C. Strand, S. Sugimoto, C. Witzig, Y. Yoshimura. 2000-09-26. Search for the Decay K+ -> pi+ pi0 nu nubar. https://doi.org/10.1103/physrevd.63.032004

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