Study of the decay K^+→π^+ν ν^^- in momentum region 140 < P_π < 199MeV/c

• Material Type: 文書・図像類
• Title: Study of the decay K^+→π^+ν ν^^- in momentum region 140 < P_π < 199MeV/c
• Author/Editor: ARTAMONOV, A.V; BASSALECK, 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
• Author Heading: ARTAMONOV, A.V; BASSALECK, 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
• Publication, Distribution, etc.: American Physical Society
• Publication Date: 2009
• Publication Date (W3CDTF): 2009
• Periodical title: Physical Review D
• No. or year of volume/issue: 79 9
• Volume: 79
• Issue: 9
• Pages: 092004-1-092004-27
• ISSN (Periodical Title): ISSN : 1550-7998
• Text Language Code: eng
• Subject Heading: K-on rare decay
• Target Audience: 一般
• Note (General): Experiment E949 at Brookhaven National Laboratory has observed three new events consistent with the decay K^+ → π^+ VV^^- in the pion momentum region 140<P_π < 199 MeV/c in an exposure of 1.71 × 10^<12> stopped kaons with an estimated total background of 0.93 ± 0.17(stat)^<+0.32>_<-0.24>(syst) events. This brings the total number of observed K^+ → π^+ vv^^- 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^+ vv^^-)=(1.73^<+1.15>_<-1.05>) ×10^<-10>. An interpretation of the results for alternative models of the decay K^+ → π^+ +nothing is also presented.
• Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22136&item_no=1&attribute_id=22&file_no=1
• Access Restrictions: 限定公開
• Rights (production): American Physical Society
• Related Material (DOI): 10.1103/PhysRevD.79.092004
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ