Search for the decay K+ → π+νν̄ in the momentum region Pπ < 195 MeV/c

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

研究成果: Article

38 引用 (Scopus)

抜粋

We have searched for the decay K+ → π+νν̄ in the kinematic region with pion momentum below the K+ → π+π0 peak. One event was observed, consistent with the background estimate of 0.73 ± 0.18. This implies an upper limit on B(K+ → π+ νν̄ < 4.2 × 10-9 (90% C.L.), consistent with the recently measured branching ratio of (1.57+-0.82+1.75) × 10-10, obtained using the standard model spectrum and the kinematic region above the K+ → π+π0 peak. The same data were used to search for K+ → π+X0, where X0 is a weakly interacting neutral particle or system of particles with 150 < MX0 < 250 MeV/c2.

元の言語English
ページ(範囲)211-216
ページ数6
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
537
発行部数3-4
DOI
出版物ステータスPublished - 2002 6 20
外部発表Yes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

フィンガープリント Search for the decay K<sup>+</sup> → π<sup>+</sup>νν̄ in the momentum region P<sub>π</sub> < 195 MeV/c' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Adler, S., Aoki, M., Ardebili, M., Atiya, M. S., Bazarko, A. O., Bergbusch, P. C., Bhuyan, B., Blackmore, E. W., Bryman, D. A., Chiang, I. H., Convery, M. R., Diwan, M. V., Frank, J. S., Haggerty, J. S., Inagaki, T., Ito, M., Jain, V., Jaffe, D. E., Kabe, S., ... Witzig, C. (2002). Search for the decay K+ → π+νν̄ in the momentum region Pπ < 195 MeV/c. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 537(3-4), 211-216. https://doi.org/10.1016/S0370-2693(02)01911-1