Measurement of the K+→π+νν̄ branching ratio

S. Adler, V. V. Anisimovsky, M. Aoki, M. Ardebili, A. V. Artamonov, M. Atiya, B. Bassalleck, A. O. Bazarko, B. Bhuyan, E. W. Blackmore, D. A. Bryman, S. Chen, I. H. Chiang, I. A. Christidi, M. R. Convery, P. S. Cooper, M. V. Diwan, J. S. Frank, T. Fujiwara, J. HaggertyJ. Hu, T. Inagaki, M. M. Ito, A. P. Ivashkin, D. E. Jaffe, S. Kabe, M. Kazumori, Y. Kuno, M. Kuriki, S. H. Kettell, M. M. Khabibullin, A. N. Khotjantsev, P. Kitching, M. Kobayashi, T. K. Komatsubara, A. Konaka, A. P. Kozhevnikov, Yu G. Kudenko, A. Kushnirenko, L. G. Landsberg, B. Lewis, K. K. Li, L. S. Littenberg, J. A. Macdonald, D. R. Marlow, R. A. McPherson, P. D. Meyers, J. Mildenberger, O. V. Mineev, M. Miyajima, K. Mizouchi, V. A. Mukhin, N. Muramatsu, T. Nakano, M. Nomachi, T. Nomura, T. Numao, V. F. Obraztsov, K. Omata, D. I. Patalakha, S. V. Petrenko, R. Poutissou, E. J. Ramberg, G. Redlinger, T. Sato, T. Sekiguchi, T. Shinkawa, F. C. Shoemaker, A. J.S. Smith, J. R. Stone, R. C. Strand, S. Sugimoto, Y. Tamagawa, R. Tschirhart, T. Tsunemi, D. V. Vavilov, B. Viren, N. V. Yershov, Y. Yoshimura, T. Yoshioka

研究成果: ジャーナルへの寄稿学術誌査読

115 被引用数 (Scopus)

抄録

Experiment E949 at Brookhaven National Laboratory studied the rare decay K+→π+νν̄ and other processes with an exposure of 1.77×1012 K+'s. The data were analyzed using a blind analysis technique yielding one candidate event with an estimated background of 0.30±0.03 events. Combining this result with the observation of two candidate events by the predecessor experiment E787 gave the branching ratio B(K+→π+νν ̄)=(1.47-0.89+1.30)×10-10, consistent with the standard model prediction of (0.74±0.20)×10-10. This is a more detailed report of results previously published.

本文言語英語
論文番号052003
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
77
5
DOI
出版ステータス出版済み - 3月 13 2008
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

フィンガープリント

「Measurement of the K+→π+νν̄ branching ratio」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル