Improved measurement of the partial-rate CP asymmetry in B +→K0π+ and B -→K̄0π- decays

Y. Unno; K. Suzuki; K. Abe; K. Abe; T. Abe; I. Adachi; H. Aihara; M. Akatsu; Y. Asano; T. Aso; V. Aulchenko; T. Aushev; S. Bahinipati; A. M. Bakich; Y. Ban; S. Banerjee; A. Bay; I. Bedny; P. K. Behera; I. Bizjak; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; B. C.K. Casey; P. Chang; Y. Chao; K. F. Chen; B. G. Cheon; R. Chistov; S. K. Choi; Y. Choi; Y. K. Choi; M. Danilov; L. Y. Dong; J. Dragic; A. Drutskoy; S. Eidelman; V. Eiges; Y. Enari; F. Fang; N. Gabyshev; A. Garmash; T. Gershon; B. Golob; R. Guo; J. Haba; F. Handa; H. Hayashii; M. Hazumi; L. Hinz; T. Hokuue; Y. Hoshi; W. S. Hou; H. C. Huang; T. Iijima; K. Inami; A. Ishikawa; R. Itoh; H. Iwasaki; Y. Iwasaki; H. K. Jang; J. H. Kang; J. S. Kang; P. Kapusta; S. U. Kataoka; N. Katayama; H. Kawai; H. Kawai; N. Kawamura; T. Kawasaki; H. Kichimi; D. W. Kim; H. J. Kim; Hyunwoo Kim; J. H. Kim; S. K. Kim; K. Kinoshita; S. Kobayashi; S. Korpar; P. Križan; P. Krokovny; R. Kulasiri; S. Kumar; A. Kuzmin; Y. J. Kwon; J. S. Lange; G. Leder; S. H. Lee; J. Li; A. Limosani; S. W. Lin; D. Liventsev; J. MacNaughton; F. Mandl; D. Marlow; H. Matsumoto; T. Matsumoto

doi:10.1103/PhysRevD.68.011103

Improved measurement of the partial-rate CP asymmetry in B ⁺→K⁰π⁺ and B ^-→K̄⁰π^- decays

Y. Unno, K. Suzuki, K. Abe, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, A. Bay, I. Bedny, P. K. Behera, I. BizjakA. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, B. C.K. Casey, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, F. Handa, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, W. S. Hou, H. C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, H. J. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, S. Kobayashi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, S. W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, D. Marlow, H. Matsumoto, T. Matsumoto

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Abstract

We report an improved measurement of the partial-rate CP asymmetry in B^±→K⁰π^± decays. The analysis is based on a data sample of 85×10⁶ BB̄ pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e ⁺e^- storage ring. We measure A_CP(K ⁰π^±) = 0.07-_0.08^+0.09 _+0.03^+0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10 <A_CP(K⁰π^±) <0.22.

Original language	English (US)
Article number	011103
Journal	Physical Review D
Volume	68
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.68.011103
State	Published - 2003

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevD.68.011103

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Unno, Y., Suzuki, K., Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Ban, Y., Banerjee, S., Bay, A., Bedny, I., Behera, P. K., ... Matsumoto, T. (2003). Improved measurement of the partial-rate CP asymmetry in B ⁺→K⁰π⁺ and B ^-→K̄⁰π^- decays. Physical Review D, 68(1), Article 011103. https://doi.org/10.1103/PhysRevD.68.011103

@article{38a569a4639e4fbe82179df941452d9d,

title = "Improved measurement of the partial-rate CP asymmetry in B +→K0π+ and B -→{\=K}0π- decays",

abstract = "We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample of 85×106 B{\=B} pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e +e- storage ring. We measure ACP(K 0π±) = 0.07-0.08+0.09 +0.03+0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10 CP(K0π±) <0.22.",

author = "Y. Unno and K. Suzuki and K. Abe and K. Abe and T. Abe and I. Adachi and H. Aihara and M. Akatsu and Y. Asano and T. Aso and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, {A. M.} and Y. Ban and S. Banerjee and A. Bay and I. Bedny and Behera, {P. K.} and I. Bizjak and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Casey, {B. C.K.} and P. Chang and Y. Chao and Chen, {K. F.} and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and Choi, {Y. K.} and M. Danilov and Dong, {L. Y.} and J. Dragic and A. Drutskoy and S. Eidelman and V. Eiges and Y. Enari and F. Fang and N. Gabyshev and A. Garmash and T. Gershon and B. Golob and R. Guo and J. Haba and F. Handa and H. Hayashii and M. Hazumi and L. Hinz and T. Hokuue and Y. Hoshi and Hou, {W. S.} and Huang, {H. C.} and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and H. Iwasaki and Y. Iwasaki and Jang, {H. K.} and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and H. Kawai and H. Kawai and N. Kawamura and T. Kawasaki and H. Kichimi and Kim, {D. W.} and Kim, {H. J.} and Hyunwoo Kim and Kim, {J. H.} and Kim, {S. K.} and K. Kinoshita and S. Kobayashi and S. Korpar and P. Kri{\v z}an and P. Krokovny and R. Kulasiri and S. Kumar and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and Lee, {S. H.} and J. Li and A. Limosani and Lin, {S. W.} and D. Liventsev and J. MacNaughton and F. Mandl and D. Marlow and H. Matsumoto and T. Matsumoto",

year = "2003",

doi = "10.1103/PhysRevD.68.011103",

language = "English (US)",

volume = "68",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Physical Society",

number = "1",

}

Unno, Y, Suzuki, K, Abe, K, Abe, K, Abe, T, Adachi, I, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Ban, Y, Banerjee, S, Bay, A, Bedny, I, Behera, PK, Bizjak, I, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Casey, BCK, Chang, P, Chao, Y, Chen, KF, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Choi, YK, Danilov, M, Dong, LY, Dragic, J, Drutskoy, A, Eidelman, S, Eiges, V, Enari, Y, Fang, F, Gabyshev, N, Garmash, A, Gershon, T, Golob, B, Guo, R, Haba, J, Handa, F, Hayashii, H, Hazumi, M, Hinz, L, Hokuue, T, Hoshi, Y, Hou, WS, Huang, HC, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, H, Iwasaki, Y, Jang, HK, Kang, JH, Kang, JS, Kapusta, P, Kataoka, SU, Katayama, N, Kawai, H, Kawai, H, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, DW, Kim, HJ, Kim, H, Kim, JH, Kim, SK, Kinoshita, K, Kobayashi, S, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kumar, S, Kuzmin, A, Kwon, YJ, Lange, JS, Leder, G, Lee, SH, Li, J, Limosani, A, Lin, SW, Liventsev, D, MacNaughton, J, Mandl, F, Marlow, D, Matsumoto, H & Matsumoto, T 2003, 'Improved measurement of the partial-rate CP asymmetry in B ⁺→K⁰π⁺ and B ^-→K̄⁰π^- decays', Physical Review D, vol. 68, no. 1, 011103. https://doi.org/10.1103/PhysRevD.68.011103

TY - JOUR

T1 - Improved measurement of the partial-rate CP asymmetry in B +→K0π+ and B -→K̄0π- decays

AU - Unno, Y.

AU - Suzuki, K.

AU - Abe, K.

AU - Abe, T.

AU - Adachi, I.

AU - Aihara, H.

AU - Akatsu, M.

AU - Asano, Y.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Banerjee, S.

AU - Bay, A.

AU - Bedny, I.

AU - Behera, P. K.

AU - Bizjak, I.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Casey, B. C.K.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, K. F.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Danilov, M.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Fang, F.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Golob, B.

AU - Guo, R.

AU - Haba, J.

AU - Handa, F.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hinz, L.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Huang, H. C.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Jang, H. K.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawamura, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, D. W.

AU - Kim, H. J.

AU - Kim, Hyunwoo

AU - Kim, J. H.

AU - Kim, S. K.

AU - Kinoshita, K.

AU - Kobayashi, S.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, S.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Leder, G.

AU - Lee, S. H.

AU - Li, J.

AU - Limosani, A.

AU - Lin, S. W.

AU - Liventsev, D.

AU - MacNaughton, J.

AU - Mandl, F.

AU - Marlow, D.

AU - Matsumoto, H.

AU - Matsumoto, T.

PY - 2003

Y1 - 2003

N2 - We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample of 85×106 BB̄ pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e +e- storage ring. We measure ACP(K 0π±) = 0.07-0.08+0.09 +0.03+0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10 CP(K0π±) <0.22.

AB - We report an improved measurement of the partial-rate CP asymmetry in B±→K0π± decays. The analysis is based on a data sample of 85×106 BB̄ pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e +e- storage ring. We measure ACP(K 0π±) = 0.07-0.08+0.09 +0.03+0.01, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10 CP(K0π±) <0.22.

UR - http://www.scopus.com/inward/record.url?scp=84860037023&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860037023&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.68.011103

DO - 10.1103/PhysRevD.68.011103

M3 - Article

AN - SCOPUS:84860037023

SN - 0556-2821

VL - 68

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 011103

ER -

Improved measurement of the partial-rate CP asymmetry in B ⁺→K⁰π⁺ and B ^-→K̄⁰π^- decays

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