Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c

A. V. Artamonov; B. Bassalleck; B. Bhuyan; E. W. Blackmore; D. A. Bryman; S. Chen; I. H. Chiang; I. A. Christidi; P. S. Cooper; M. V. Diwan; J. S. Frank; T. Fujiwara; J. Hu; J. Ives; D. E. Jaffe; S. Kabe; 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; 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; R. C. Strand; S. Sugimoto; Y. Tamagawa; R. Tschirhart; T. Tsunemi; D. V. Vavilov; B. Viren; Zhe Wang; N. V. Yershov; Y. Yoshimura; T. Yoshioka

doi:10.1103/PhysRevD.79.092004

Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c

A. V. Artamonov, B. Bassalleck, B. Bhuyan, E. W. Blackmore, D. A. Bryman, S. Chen, I. H. Chiang, I. A. Christidi, P. S. Cooper, M. V. Diwan, J. S. Frank, T. Fujiwara, J. Hu, J. Ives, D. E. Jaffe, S. Kabe, S. H. Kettell, M. M. Khabibullin, A. N. Khotjantsev, P. KitchingM. 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, 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, R. C. Strand, S. Sugimoto, Y. Tamagawa, R. Tschirhart, T. Tsunemi, D. V. Vavilov, B. Viren, Zhe Wang, N. V. Yershov, Y. Yoshimura, T. Yoshioka

Research output: Contribution to journal › Article › peer-review

290 Citations (Scopus)

Abstract

Experiment E949 at Brookhaven National Laboratory has observed three new events consistent with the decay K+→π+νν̄ in the pion momentum region 140<Pπ<199MeV/c in an exposure of 1.71×1012 stopped kaons with an estimated total background of 0.93±0.17(stat)-0. 24+0.32(syst) events. This brings the total number of observed K+→π+νν̄ events to seven. Combining this observation with previous results, assuming the pion spectrum predicted by the standard model, results in a branching ratio of B(K+→π+νν̄)=(1.73-1.05+1.15) ×10-10. An interpretation of the results for alternative models of the decay K+→π++nothing is also presented.

Original language	English
Article number	092004
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	79
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.79.092004
Publication status	Published - May 1 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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Artamonov, A. V., Bassalleck, B., Bhuyan, B., Blackmore, E. W., Bryman, D. A., Chen, S., Chiang, I. H., Christidi, I. A., Cooper, P. S., Diwan, M. V., Frank, J. S., Fujiwara, T., Hu, J., Ives, J., Jaffe, D. E., Kabe, S., Kettell, S. H., Khabibullin, M. M., Khotjantsev, A. N., ... Yoshioka, T. (2009). Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c. Physical Review D - Particles, Fields, Gravitation and Cosmology, 79(9), [092004]. https://doi.org/10.1103/PhysRevD.79.092004

Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c. / Artamonov, A. V.; Bassalleck, B.; Bhuyan, B.; Blackmore, E. W.; Bryman, D. A.; Chen, S.; Chiang, I. H.; Christidi, I. A.; Cooper, P. S.; Diwan, M. V.; Frank, J. S.; Fujiwara, T.; Hu, J.; Ives, J.; Jaffe, D. E.; Kabe, S.; 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.; 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.; Strand, R. C.; Sugimoto, S.; Tamagawa, Y.; Tschirhart, R.; Tsunemi, T.; Vavilov, D. V.; Viren, B.; Wang, Zhe; Yershov, N. V.; Yoshimura, Y.; Yoshioka, T.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 79, No. 9, 092004, 01.05.2009.

Research output: Contribution to journal › Article › peer-review

Artamonov, AV, Bassalleck, B, Bhuyan, B, Blackmore, EW, Bryman, DA, Chen, S, Chiang, IH, Christidi, IA, Cooper, PS, Diwan, MV, Frank, JS, Fujiwara, T, Hu, J, Ives, J, Jaffe, DE, Kabe, S, 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, 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, Strand, RC, Sugimoto, S, Tamagawa, Y, Tschirhart, R, Tsunemi, T, Vavilov, DV, Viren, B, Wang, Z, Yershov, NV, Yoshimura, Y & Yoshioka, T 2009, 'Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 79, no. 9, 092004. https://doi.org/10.1103/PhysRevD.79.092004

Artamonov, A. V. ; Bassalleck, B. ; Bhuyan, B. ; Blackmore, E. W. ; Bryman, D. A. ; Chen, S. ; Chiang, I. H. ; Christidi, I. A. ; Cooper, P. S. ; Diwan, M. V. ; Frank, J. S. ; Fujiwara, T. ; Hu, J. ; Ives, J. ; Jaffe, D. E. ; Kabe, S. ; 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. ; 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. ; Strand, R. C. ; Sugimoto, S. ; Tamagawa, Y. ; Tschirhart, R. ; Tsunemi, T. ; Vavilov, D. V. ; Viren, B. ; Wang, Zhe ; Yershov, N. V. ; Yoshimura, Y. ; Yoshioka, T. / Study of the decay K+→π+νν̄ in the momentum region 140<Pπ<199MeV/c. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2009 ; Vol. 79, No. 9.

@article{d203a0dfd68942b49bd9728c87b670f5,

title = "Study of the decay K+→π+ν{\=ν} in the momentum region 140<Pπ<199MeV/c",

abstract = "Experiment E949 at Brookhaven National Laboratory has observed three new events consistent with the decay K+→π+ν{\=ν} in the pion momentum region 140<Pπ<199MeV/c in an exposure of 1.71×1012 stopped kaons with an estimated total background of 0.93±0.17(stat)-0. 24+0.32(syst) events. This brings the total number of observed K+→π+ν{\=ν} events to seven. Combining this observation with previous results, assuming the pion spectrum predicted by the standard model, results in a branching ratio of B(K+→π+ν{\=ν})=(1.73-1.05+1.15) ×10-10. An interpretation of the results for alternative models of the decay K+→π++nothing is also presented.",

author = "Artamonov, {A. V.} and B. Bassalleck and B. Bhuyan and Blackmore, {E. W.} and Bryman, {D. A.} and S. Chen and Chiang, {I. H.} and Christidi, {I. A.} and Cooper, {P. S.} and Diwan, {M. V.} and Frank, {J. S.} and T. Fujiwara and J. Hu and J. Ives and Jaffe, {D. E.} and S. Kabe and Kettell, {S. H.} and Khabibullin, {M. M.} and Khotjantsev, {A. N.} and P. Kitching and M. Kobayashi and Komatsubara, {T. K.} and A. Konaka and Kozhevnikov, {A. P.} and Kudenko, {Yu G.} and A. Kushnirenko and Landsberg, {L. G.} and B. Lewis and Li, {K. K.} and Littenberg, {L. S.} and MacDonald, {J. A.} and J. Mildenberger and Mineev, {O. V.} and M. Miyajima and K. Mizouchi and Mukhin, {V. A.} and N. Muramatsu and T. Nakano and M. Nomachi and T. Nomura and T. Numao and Obraztsov, {V. F.} and K. Omata and Patalakha, {D. I.} and Petrenko, {S. V.} and R. Poutissou and Ramberg, {E. J.} and G. Redlinger and T. Sato and T. Sekiguchi and T. Shinkawa and Strand, {R. C.} and S. Sugimoto and Y. Tamagawa and R. Tschirhart and T. Tsunemi and Vavilov, {D. V.} and B. Viren and Zhe Wang and Yershov, {N. V.} and Y. Yoshimura and T. Yoshioka",

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AU - Artamonov, A. V.

AU - Bassalleck, B.

AU - Bhuyan, B.

AU - Blackmore, E. W.

AU - Bryman, D. A.

AU - Chen, S.

AU - Chiang, I. H.

AU - Christidi, I. A.

AU - Cooper, P. S.

AU - Diwan, M. V.

AU - Frank, J. S.

AU - Fujiwara, T.

AU - Hu, J.

AU - Ives, J.

AU - Jaffe, D. E.

AU - Kabe, S.

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 - 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 - Strand, R. C.

AU - Sugimoto, S.

AU - Tamagawa, Y.

AU - Tschirhart, R.

AU - Tsunemi, T.

AU - Vavilov, D. V.

AU - Viren, B.

AU - Wang, Zhe

AU - Yershov, N. V.

AU - Yoshimura, Y.

AU - Yoshioka, T.

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N2 - Experiment E949 at Brookhaven National Laboratory has observed three new events consistent with the decay K+→π+νν̄ in the pion momentum region 140<Pπ<199MeV/c in an exposure of 1.71×1012 stopped kaons with an estimated total background of 0.93±0.17(stat)-0. 24+0.32(syst) events. This brings the total number of observed K+→π+νν̄ events to seven. Combining this observation with previous results, assuming the pion spectrum predicted by the standard model, results in a branching ratio of B(K+→π+νν̄)=(1.73-1.05+1.15) ×10-10. An interpretation of the results for alternative models of the decay K+→π++nothing is also presented.

AB - Experiment E949 at Brookhaven National Laboratory has observed three new events consistent with the decay K+→π+νν̄ in the pion momentum region 140<Pπ<199MeV/c in an exposure of 1.71×1012 stopped kaons with an estimated total background of 0.93±0.17(stat)-0. 24+0.32(syst) events. This brings the total number of observed K+→π+νν̄ events to seven. Combining this observation with previous results, assuming the pion spectrum predicted by the standard model, results in a branching ratio of B(K+→π+νν̄)=(1.73-1.05+1.15) ×10-10. An interpretation of the results for alternative models of the decay K+→π++nothing is also presented.

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