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

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Abstract

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.

Original languageEnglish
Article number052003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number5
DOIs
Publication statusPublished - Mar 13 2008

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 77, No. 5, 052003, 13.03.2008.

Research output: Contribution to journalArticle

Adler, S, Anisimovsky, VV, Aoki, M, Ardebili, M, Artamonov, AV, Atiya, M, Bassalleck, B, Bazarko, AO, Bhuyan, B, Blackmore, EW, Bryman, DA, Chen, S, Chiang, IH, Christidi, IA, Convery, MR, Cooper, PS, Diwan, MV, Frank, JS, Fujiwara, T, Haggerty, J, Hu, J, Inagaki, T, Ito, MM, Ivashkin, AP, Jaffe, DE, Kabe, S, Kazumori, M, Kuno, Y, Kuriki, M, Kettell, SH, Khabibullin, MM, Khotjantsev, AN, Kitching, P, Kobayashi, M, Komatsubara, TK, Konaka, A, Kozhevnikov, AP, Kudenko, YG, Kushnirenko, A, Landsberg, LG, Lewis, B, Li, KK, Littenberg, LS, Macdonald, JA, Marlow, DR, McPherson, RA, Meyers, PD, Mildenberger, J, Mineev, OV, Miyajima, M, Mizouchi, K, Mukhin, VA, Muramatsu, N, Nakano, T, Nomachi, M, Nomura, T, Numao, T, Obraztsov, VF, Omata, K, Patalakha, DI, Petrenko, SV, Poutissou, R, Ramberg, EJ, Redlinger, G, Sato, T, Sekiguchi, T, Shinkawa, T, Shoemaker, FC, Smith, AJS, Stone, JR, Strand, RC, Sugimoto, S, Tamagawa, Y, Tschirhart, R, Tsunemi, T, Vavilov, DV, Viren, B, Yershov, NV, Yoshimura, Y & Yoshioka, T 2008, 'Measurement of the K+→π+νν̄ branching ratio', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 77, no. 5, 052003. https://doi.org/10.1103/PhysRevD.77.052003
Adler S, Anisimovsky VV, Aoki M, Ardebili M, Artamonov AV, Atiya M et al. Measurement of the K+→π+νν̄ branching ratio. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2008 Mar 13;77(5). 052003. https://doi.org/10.1103/PhysRevD.77.052003
Adler, S. ; Anisimovsky, V. V. ; Aoki, M. ; Ardebili, M. ; Artamonov, A. V. ; Atiya, M. ; Bassalleck, B. ; Bazarko, A. O. ; Bhuyan, B. ; Blackmore, E. W. ; Bryman, D. A. ; Chen, S. ; Chiang, I. H. ; Christidi, I. A. ; Convery, M. R. ; Cooper, P. S. ; Diwan, M. V. ; Frank, J. S. ; Fujiwara, T. ; Haggerty, J. ; Hu, J. ; Inagaki, T. ; Ito, M. M. ; Ivashkin, A. P. ; Jaffe, D. E. ; Kabe, S. ; Kazumori, M. ; Kuno, Y. ; Kuriki, M. ; Kettell, S. H. ; Khabibullin, M. M. ; Khotjantsev, A. N. ; Kitching, P. ; Kobayashi, M. ; Komatsubara, T. K. ; Konaka, A. ; Kozhevnikov, A. P. ; Kudenko, Yu G. ; Kushnirenko, A. ; Landsberg, L. G. ; Lewis, B. ; Li, K. K. ; Littenberg, L. S. ; Macdonald, J. A. ; Marlow, D. R. ; McPherson, R. A. ; Meyers, P. D. ; Mildenberger, J. ; Mineev, O. V. ; Miyajima, M. ; Mizouchi, K. ; Mukhin, V. A. ; Muramatsu, N. ; Nakano, T. ; Nomachi, M. ; Nomura, T. ; Numao, T. ; Obraztsov, V. F. ; Omata, K. ; Patalakha, D. I. ; Petrenko, S. V. ; Poutissou, R. ; Ramberg, E. J. ; Redlinger, G. ; Sato, T. ; Sekiguchi, T. ; Shinkawa, T. ; Shoemaker, F. C. ; Smith, A. J.S. ; Stone, J. R. ; Strand, R. C. ; Sugimoto, S. ; Tamagawa, Y. ; Tschirhart, R. ; Tsunemi, T. ; Vavilov, D. V. ; Viren, B. ; Yershov, N. V. ; Yoshimura, Y. ; Yoshioka, T. / Measurement of the K+→π+νν̄ branching ratio. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2008 ; Vol. 77, No. 5.
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title = "Measurement of the K+→π+νν̄ branching ratio",
abstract = "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.",
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T1 - Measurement of the K+→π+νν̄ branching ratio

AU - Adler, S.

AU - Anisimovsky, V. V.

AU - Aoki, M.

AU - Ardebili, M.

AU - Artamonov, A. V.

AU - Atiya, M.

AU - Bassalleck, B.

AU - Bazarko, A. O.

AU - Bhuyan, B.

AU - Blackmore, E. W.

AU - Bryman, D. A.

AU - Chen, S.

AU - Chiang, I. H.

AU - Christidi, I. A.

AU - Convery, M. R.

AU - Cooper, P. S.

AU - Diwan, M. V.

AU - Frank, J. S.

AU - Fujiwara, T.

AU - Haggerty, J.

AU - Hu, J.

AU - Inagaki, T.

AU - Ito, M. M.

AU - Ivashkin, A. P.

AU - Jaffe, D. E.

AU - Kabe, S.

AU - Kazumori, M.

AU - Kuno, Y.

AU - Kuriki, M.

AU - Kettell, S. H.

AU - Khabibullin, M. M.

AU - Khotjantsev, A. N.

AU - Kitching, P.

AU - Kobayashi, M.

AU - Komatsubara, T. K.

AU - Konaka, A.

AU - Kozhevnikov, A. P.

AU - Kudenko, Yu G.

AU - Kushnirenko, A.

AU - Landsberg, L. G.

AU - Lewis, B.

AU - Li, K. K.

AU - Littenberg, L. S.

AU - Macdonald, J. A.

AU - Marlow, D. R.

AU - McPherson, R. A.

AU - Meyers, P. D.

AU - Mildenberger, J.

AU - Mineev, O. V.

AU - Miyajima, M.

AU - Mizouchi, K.

AU - Mukhin, V. A.

AU - Muramatsu, N.

AU - Nakano, T.

AU - Nomachi, M.

AU - Nomura, T.

AU - Numao, T.

AU - Obraztsov, V. F.

AU - Omata, K.

AU - Patalakha, D. I.

AU - Petrenko, S. V.

AU - Poutissou, R.

AU - Ramberg, E. J.

AU - Redlinger, G.

AU - Sato, T.

AU - Sekiguchi, T.

AU - Shinkawa, T.

AU - Shoemaker, F. C.

AU - Smith, A. J.S.

AU - Stone, J. R.

AU - Strand, R. C.

AU - Sugimoto, S.

AU - Tamagawa, Y.

AU - Tschirhart, R.

AU - Tsunemi, T.

AU - Vavilov, D. V.

AU - Viren, B.

AU - Yershov, N. V.

AU - Yoshimura, Y.

AU - Yoshioka, T.

PY - 2008/3/13

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AB - 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.

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