Search for direct CP violation in B→Kπ decays

K. Abe; K. Abe; R. Abe; I. Adachi; Byoung Sup Ahn; H. Aihara; M. Akatsu; Y. Asano; T. Aso; V. Aulchenko; T. Aushev; A. M. Bakich; E. Banas; S. Behari; P. K. Behera; A. Bondar; A. Bozek; T. E. Browder; B. C.K. Casey; P. Chang; Y. Chao; K. Chen; B. G. Cheon; R. Chistov; S. Choi; Y. Choi; L. Y. Dong; J. Dragic; A. Drutskoy; S. Eidelman; R. Enomoto; F. Fang; H. Fujii; C. Fukunaga; M. Fukushima; A. Garmash; A. Gordon; K. Gotow; R. Guo; J. Haba; H. Hamasaki; K. Hanagaki; F. Handa; K. Hara; T. Hara; N. C. Hastings; H. Hayashii; M. Hazumi; E. M. Heenan; I. Higuchi; T. Higuchi; H. Hirano; T. Hojo; T. Hokuue; Y. Hoshi; S. R. Hou; W. S. Hou; S. Hsu; H. Huang; Y. Igarashi; T. Iijima; H. Ikeda; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; G. Iwai; H. Iwasaki; Y. Iwasaki; D. J. Jackson; P. Jalocha; H. K. Jang; M. Jones; J. H. Kang; J. S. Kang; P. Kapusta; N. Katayama; H. Kawai; H. Kawai; Y. Kawakami; N. Kawamura; T. Kawasaki; H. Kichimi; D. W. Kim; Heejong Kim; H. J. Kim; Hyunwoo Kim; S. K. Kim; T. H. Kim; K. Kinoshita; H. Konishi; P. Krokovny; R. Kulasiri; S. Kumar; E. Kurihara; A. Kuzmin; Y. Kwon; J. S. Lange; S. H. Lee; D. Liventsev; R. Lu; D. Marlow; T. Matsubara; S. Matsui; S. Matsumoto; T. Matsumoto; Y. Mikami; K. Miyabayashi; H. Miyake; H. Miyata; G. R. Moloney; T. Mori; A. Murakami; T. Nagamine; Y. Nagasaka; Y. Nagashima; E. Nakano; M. Nakao; J. W. Nam; S. Narita; Z. Natkaniec; K. Neichi; S. Nishida; S. Noguchi; T. Nozaki; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; H. Ozaki; P. Pakhlov; H. Palka; C. S. Park; C. W. Park; H. Park; L. S. Peak; M. Peters; L. E. Piilonen; E. Prebys; N. Root; M. Rozanska; K. Rybicki; J. Ryuko; H. Sagawa; Y. Sakai; H. Sakamoto; M. Satapathy; A. Satpathy; S. Schrenk; S. Semenov; K. Senyo; M. E. Sevior; H. Shibuya; B. Shwartz; S. Stanič; A. Sugiyama; K. Sumisawa; T. Sumiyoshi; J. Suzuki; K. Suzuki; S. Suzuki; S. Y. Suzuki; S. K. Swain; T. Takahashi; F. Takasaki; M. Takita; K. Tamai; N. Tamura; J. Tanaka; M. Tanaka; Y. Tanaka; G. N. Taylor; Y. Teramoto; M. Tomoto; T. Tomura; S. N. Tovey; K. Trabelsi; T. Tsuboyama; T. Tsukamoto; S. Uehara; K. Ueno; Y. Unno; S. Uno; Y. Ushiroda; K. E. Varvell; C. C. Wang; C. H. Wang; J. G. Wang; M. Wang; Y. Watanabe; Eunil Won; B. D. Yabsley; Y. Yamada; M. Yamaga; A. Yamaguchi; H. Yamamoto; Y. Yamashita; M. Yamauchi; S. Yanaka; K. Yoshida; Y. Yusa; H. Yuta; J. Zhang; H. W. Zhao; Y. Zheng; V. Zhilich; D. Žontar

doi:10.1103/PhysRevD.64.071101

Search for direct CP violation in B→Kπ decays

K. Abe, K. Abe, R. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, E. Banas, S. Behari, P. K. Behera, A. Bondar, A. Bozek, T. E. Browder, B. C.K. Casey, P. ChangY. Chao, K. Chen, B. G. Cheon, R. Chistov, S. Choi, Y. Choi, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, R. Enomoto, F. Fang, H. Fujii, C. Fukunaga, M. Fukushima, A. Garmash, A. Gordon, K. Gotow, R. Guo, J. Haba, H. Hamasaki, K. Hanagaki, F. Handa, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, H. Hirano, T. Hojo, T. Hokuue, Y. Hoshi, S. R. Hou, W. S. Hou, S. Hsu, H. Huang, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, G. Iwai, H. Iwasaki, Y. Iwasaki, D. J. Jackson, P. Jalocha, H. K. Jang, M. Jones, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, Hyunwoo Kim, S. K. Kim, T. H. Kim, K. Kinoshita, H. Konishi, P. Krokovny, R. Kulasiri, S. Kumar, E. Kurihara, A. Kuzmin, Y. Kwon, J. S. Lange, S. H. Lee, D. Liventsev, R. Lu, D. Marlow, T. Matsubara, S. Matsui, S. Matsumoto, T. Matsumoto, Y. Mikami, K. Miyabayashi, H. Miyake, H. Miyata, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, Y. Nagashima, E. Nakano, M. Nakao, J. W. Nam, S. Narita, Z. Natkaniec, K. Neichi, S. Nishida, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, H. Ozaki, P. Pakhlov, H. Palka, C. S. Park, C. W. Park, H. Park, L. S. Peak, M. Peters, L. E. Piilonen, E. Prebys, N. Root, M. Rozanska, K. Rybicki, J. Ryuko, H. Sagawa, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, S. Schrenk, S. Semenov, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, S. Stanič, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, J. Suzuki, K. Suzuki, S. Suzuki, S. Y. Suzuki, S. K. Swain, T. Takahashi, F. Takasaki, M. Takita, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, Y. Tanaka, G. N. Taylor, Y. Teramoto, M. Tomoto, T. Tomura, S. N. Tovey, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Wang, Y. Watanabe, Eunil Won, B. D. Yabsley, Y. Yamada, M. Yamaga, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, S. Yanaka, K. Yoshida, Y. Yusa, H. Yuta, J. Zhang, H. W. Zhao, Y. Zheng, V. Zhilich, D. Žontar

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

15 Citations (Scopus)

Abstract

We search for direct CP violation in flavor specific B → Kπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 10⁶ BB events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry A_CP of -0.25<A_CP(K^∓π^±)<0.37, -0.40<A_CP(K^∓π⁰)<0.36, and -0.53 <A _CP (K⁰π^∓)<0.82. By combining the K^∓π^± and K^∓π⁰ final states, we conclude that -0.22 <A_CP(K^∓(π^± + π⁰))<0.25 at the 90% confidence level.

Original language	English
Article number	071101
Journal	Physical Review D
Volume	64
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.64.071101
Publication status	Published - 2001 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

Access to Document

10.1103/PhysRevD.64.071101

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Abe, K., Abe, K., Abe, R., Adachi, I., Ahn, B. S., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Aushev, T., M. Bakich, A., Banas, E., Behari, S., Behera, P. K., Bondar, A., Bozek, A., E. Browder, T., Casey, B. C. K., ... Žontar, D. (2001). Search for direct CP violation in B→Kπ decays. Physical Review D, 64(7), [071101]. https://doi.org/10.1103/PhysRevD.64.071101

Abe, K, Abe, K, Abe, R, Adachi, I, Ahn, BS, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aulchenko, V, Aushev, T, M. Bakich, A, Banas, E, Behari, S, Behera, PK, Bondar, A, Bozek, A, E. Browder, T, Casey, BCK, Chang, P, Chao, Y, Chen, K, Cheon, BG, Chistov, R, Choi, S, Choi, Y, Dong, LY, Dragic, J, Drutskoy, A, Eidelman, S, Enomoto, R, Fang, F, Fujii, H, Fukunaga, C, Fukushima, M, Garmash, A, Gordon, A, Gotow, K, Guo, R, Haba, J, Hamasaki, H, Hanagaki, K, Handa, F, Hara, K, Hara, T, Hastings, NC, Hayashii, H, Hazumi, M, Heenan, EM, Higuchi, I, Higuchi, T, Hirano, H, Hojo, T, Hokuue, T, Hoshi, Y, Hou, SR, Hou, WS, Hsu, S, Huang, H, Igarashi, Y, Iijima, T, Ikeda, H, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwai, G, Iwasaki, H, Iwasaki, Y, Jackson, DJ, Jalocha, P, Jang, HK, Jones, M, Kang, JH, Kang, JS, Kapusta, P, Katayama, N, Kawai, H, Kawai, H, Kawakami, Y, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, DW, Kim, H, Kim, HJ, Kim, H, Kim, SK, Kim, TH, Kinoshita, K, Konishi, H, Krokovny, P, Kulasiri, R, Kumar, S, Kurihara, E, Kuzmin, A, Kwon, Y, Lange, JS, Lee, SH, Liventsev, D, Lu, R, Marlow, D, Matsubara, T, Matsui, S, Matsumoto, S, Matsumoto, T, Mikami, Y, Miyabayashi, K, Miyake, H, Miyata, H, Moloney, GR, Mori, T, Murakami, A, Nagamine, T, Nagasaka, Y, Nagashima, Y, Nakano, E, Nakao, M, Nam, JW, Narita, S, Natkaniec, Z, Neichi, K, Nishida, S, Noguchi, S, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Ozaki, H, Pakhlov, P, Palka, H, Park, CS, Park, CW, Park, H, Peak, LS, Peters, M, Piilonen, LE, Prebys, E, Root, N, Rozanska, M, Rybicki, K, Ryuko, J, Sagawa, H, Sakai, Y, Sakamoto, H, Satapathy, M, Satpathy, A, Schrenk, S, Semenov, S, Senyo, K, Sevior, ME, Shibuya, H, Shwartz, B, Stanič, S, Sugiyama, A, Sumisawa, K, Sumiyoshi, T, Suzuki, J, Suzuki, K, Suzuki, S, Suzuki, SY, Swain, SK, Takahashi, T, Takasaki, F, Takita, M, Tamai, K, Tamura, N, Tanaka, J, Tanaka, M, Tanaka, Y, Taylor, GN, Teramoto, Y, Tomoto, M, Tomura, T, Tovey, SN, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Ueno, K, Unno, Y, Uno, S, Ushiroda, Y, Varvell, KE, Wang, CC, Wang, CH, Wang, JG, Wang, M, Watanabe, Y, Won, E, Yabsley, BD, Yamada, Y, Yamaga, M, Yamaguchi, A, Yamamoto, H, Yamashita, Y, Yamauchi, M, Yanaka, S, Yoshida, K, Yusa, Y, Yuta, H, Zhang, J, Zhao, HW, Zheng, Y, Zhilich, V & Žontar, D 2001, 'Search for direct CP violation in B→Kπ decays', Physical Review D, vol. 64, no. 7, 071101. https://doi.org/10.1103/PhysRevD.64.071101

@article{2ed8a4f83eec4642b8ed358c9a463162,

title = "Search for direct CP violation in B→Kπ decays",

abstract = "We search for direct CP violation in flavor specific B → Kπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 106 BB events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry ACP of -0.25<ACP(K∓π±)<0.37, -0.40<ACP(K∓π0)<0.36, and -0.53 <A CP (K0π∓)<0.82. By combining the K∓π± and K∓π0 final states, we conclude that -0.22 <ACP(K∓(π± + π0))<0.25 at the 90% confidence level.",

author = "K. Abe and K. Abe and R. Abe and I. Adachi and Ahn, {Byoung Sup} and H. Aihara and M. Akatsu and Y. Asano and T. Aso and V. Aulchenko and T. Aushev and {M. Bakich}, A. and E. Banas and S. Behari and Behera, {P. K.} and A. Bondar and A. Bozek and {E. Browder}, T. and Casey, {B. C.K.} and P. Chang and Y. Chao and K. Chen and Cheon, {B. G.} and R. Chistov and S. Choi and Y. Choi and Dong, {L. Y.} and J. Dragic and A. Drutskoy and S. Eidelman and R. Enomoto and F. Fang and H. Fujii and C. Fukunaga and M. Fukushima and A. Garmash and A. Gordon and K. Gotow and R. Guo and J. Haba and H. Hamasaki and K. Hanagaki and F. Handa and K. Hara and T. Hara and Hastings, {N. C.} and H. Hayashii and M. Hazumi and Heenan, {E. M.} and I. Higuchi and T. Higuchi and H. Hirano and T. Hojo and T. Hokuue and Y. Hoshi and Hou, {S. R.} and Hou, {W. S.} and S. Hsu and H. Huang and Y. Igarashi and T. Iijima and H. Ikeda and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and G. Iwai and H. Iwasaki and Y. Iwasaki and Jackson, {D. J.} and P. Jalocha and Jang, {H. K.} and M. Jones and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and N. Katayama and H. Kawai and H. Kawai and Y. Kawakami and N. Kawamura and T. Kawasaki and H. Kichimi and Kim, {D. W.} and Heejong Kim and Kim, {H. J.} and Hyunwoo Kim and Kim, {S. K.} and Kim, {T. H.} and K. Kinoshita and H. Konishi and P. Krokovny and R. Kulasiri and S. Kumar and E. Kurihara and A. Kuzmin and Y. Kwon and Lange, {J. S.} and Lee, {S. H.} and D. Liventsev and R. Lu and D. Marlow and T. Matsubara and S. Matsui and S. Matsumoto and T. Matsumoto and Y. Mikami and K. Miyabayashi and H. Miyake and H. Miyata and Moloney, {G. R.} and T. Mori and A. Murakami and T. Nagamine and Y. Nagasaka and Y. Nagashima and E. Nakano and M. Nakao and Nam, {J. W.} and S. Narita and Z. Natkaniec and K. Neichi and S. Nishida and S. Noguchi and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. S.} and Park, {C. W.} and H. Park and Peak, {L. S.} and M. Peters and Piilonen, {L. E.} and E. Prebys and N. Root and M. Rozanska and K. Rybicki and J. Ryuko and H. Sagawa and Y. Sakai and H. Sakamoto and M. Satapathy and A. Satpathy and S. Schrenk and S. Semenov and K. Senyo and Sevior, {M. E.} and H. Shibuya and B. Shwartz and S. Stani{\v c} and A. Sugiyama and K. Sumisawa and T. Sumiyoshi and J. Suzuki and K. Suzuki and S. Suzuki and Suzuki, {S. Y.} and Swain, {S. K.} and T. Takahashi and F. Takasaki and M. Takita and K. Tamai and N. Tamura and J. Tanaka and M. Tanaka and Y. Tanaka and Taylor, {G. N.} and Y. Teramoto and M. Tomoto and T. Tomura and Tovey, {S. N.} and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and K. Ueno and Y. Unno and S. Uno and Y. Ushiroda and Varvell, {K. E.} and Wang, {C. C.} and Wang, {C. H.} and Wang, {J. G.} and M. Wang and Y. Watanabe and Eunil Won and Yabsley, {B. D.} and Y. Yamada and M. Yamaga and A. Yamaguchi and H. Yamamoto and Y. Yamashita and M. Yamauchi and S. Yanaka and K. Yoshida and Y. Yusa and H. Yuta and J. Zhang and Zhao, {H. W.} and Y. Zheng and V. Zhilich and D. {\v Z}ontar",

note = "Publisher Copyright: {\textcopyright} 2001 The American Physical Society.",

year = "2001",

month = jan,

day = "1",

doi = "10.1103/PhysRevD.64.071101",

language = "English",

volume = "64",

journal = "Physical review D: Particles and fields",

issn = "0556-2821",

publisher = "American Institute of Physics Publising LLC",

number = "7",

}

TY - JOUR

T1 - Search for direct CP violation in B→Kπ decays

AU - Abe, K.

AU - Abe, R.

AU - Adachi, I.

AU - Ahn, Byoung Sup

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - M. Bakich, A.

AU - Banas, E.

AU - Behari, S.

AU - Behera, P. K.

AU - Bondar, A.

AU - Bozek, A.

AU - E. Browder, T.

AU - Casey, B. C.K.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, K.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S.

AU - Choi, Y.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Enomoto, R.

AU - Fang, F.

AU - Fujii, H.

AU - Fukunaga, C.

AU - Fukushima, M.

AU - Garmash, A.

AU - Gordon, A.

AU - Gotow, K.

AU - Guo, R.

AU - Haba, J.

AU - Hamasaki, H.

AU - Hanagaki, K.

AU - Handa, F.

AU - Hara, K.

AU - Hara, T.

AU - Hastings, N. C.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heenan, E. M.

AU - Higuchi, I.

AU - Higuchi, T.

AU - Hirano, H.

AU - Hojo, T.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S. R.

AU - Hou, W. S.

AU - Hsu, S.

AU - Huang, H.

AU - Igarashi, Y.

AU - Iijima, T.

AU - Ikeda, H.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwai, G.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Jackson, D. J.

AU - Jalocha, P.

AU - Jang, H. K.

AU - Jones, M.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawakami, Y.

AU - Kawamura, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, D. W.

AU - Kim, Heejong

AU - Kim, H. J.

AU - Kim, Hyunwoo

AU - Kim, S. K.

AU - Kim, T. H.

AU - Kinoshita, K.

AU - Konishi, H.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, S.

AU - Kurihara, E.

AU - Kuzmin, A.

AU - Kwon, Y.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Liventsev, D.

AU - Lu, R.

AU - Marlow, D.

AU - Matsubara, T.

AU - Matsui, S.

AU - Matsumoto, S.

AU - Matsumoto, T.

AU - Mikami, Y.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Moloney, G. R.

AU - Mori, T.

AU - Murakami, A.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nagashima, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nam, J. W.

AU - Narita, S.

AU - Natkaniec, Z.

AU - Neichi, K.

AU - Nishida, S.

AU - Noguchi, S.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. S.

AU - Park, C. W.

AU - Park, H.

AU - Peak, L. S.

AU - Peters, M.

AU - Piilonen, L. E.

AU - Prebys, E.

AU - Root, N.

AU - Rozanska, M.

AU - Rybicki, K.

AU - Ryuko, J.

AU - Sagawa, H.

AU - Sakai, Y.

AU - Sakamoto, H.

AU - Satapathy, M.

AU - Satpathy, A.

AU - Schrenk, S.

AU - Semenov, S.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Stanič, S.

AU - Sugiyama, A.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, J.

AU - Suzuki, K.

AU - Suzuki, S.

AU - Suzuki, S. Y.

AU - Swain, S. K.

AU - Takahashi, T.

AU - Takasaki, F.

AU - Takita, M.

AU - Tamai, K.

AU - Tamura, N.

AU - Tanaka, J.

AU - Tanaka, M.

AU - Tanaka, Y.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tomoto, M.

AU - Tomura, T.

AU - Tovey, S. N.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Ueno, K.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varvell, K. E.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, J. G.

AU - Wang, M.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Yabsley, B. D.

AU - Yamada, Y.

AU - Yamaga, M.

AU - Yamaguchi, A.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yanaka, S.

AU - Yoshida, K.

AU - Yusa, Y.

AU - Yuta, H.

AU - Zhang, J.

AU - Zhao, H. W.

AU - Zheng, Y.

AU - Zhilich, V.

AU - Žontar, D.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - We search for direct CP violation in flavor specific B → Kπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 106 BB events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry ACP of -0.25<ACP(K∓π±)<0.37, -0.40<ACP(K∓π0)<0.36, and -0.53 <A CP (K0π∓)<0.82. By combining the K∓π± and K∓π0 final states, we conclude that -0.22 <ACP(K∓(π± + π0))<0.25 at the 90% confidence level.

AB - We search for direct CP violation in flavor specific B → Kπ decays by measuring the rate asymmetry between charge conjugate modes. The search is performed on a data sample of 11.1 × 106 BB events recorded on the Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confidence intervals in the partial rate asymmetry ACP of -0.25<ACP(K∓π±)<0.37, -0.40<ACP(K∓π0)<0.36, and -0.53 <A CP (K0π∓)<0.82. By combining the K∓π± and K∓π0 final states, we conclude that -0.22 <ACP(K∓(π± + π0))<0.25 at the 90% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=14344273766&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=14344273766&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.64.071101

DO - 10.1103/PhysRevD.64.071101

M3 - Article

AN - SCOPUS:14344273766

VL - 64

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 071101

ER -

Search for direct CP violation in B→Kπ decays

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