Study of B 0 → ρ±π∓ time-dependent CP violation at Belle

C. C. Wang; K. Abe; K. Abe; T. Abe; I. Adachi; H. Aihara; Y. Asano; T. Aushev; A. M. Bakich; Y. Ban; A. Bay; I. Bedny; U. Bitenc; I. Bizjak; S. Blyth; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; P. Chang; Y. Chao; K. F. Chen; W. T. Chen; B. C. Cheon; S. K. Choi; Y. Choi; A. Chuvikov; S. Cole; M. Dash; L. Y. Dong; J. Dragic; A. Drutskoy; S. Eidelman; V. Eiges; T. Gershon; G. Gokhroo; R. Guo; J. Haba; N. C. Hastings; K. Hayasaka; H. Hayashii; M. Hazumi; T. Hokuue; Y. Hoshi; S. Hou; W. S. Hou; Y. B. Hsiung; T. Iijima; A. Imoto; K. Inami; A. Ishikawa; H. Ishino; K. Itoh; R. Itoh; H. Iwasaki; Y. Iwasaki; H. Kakuno; J. H. Kang; J. S. Kang; P. Kapusta; N. Katayama; T. Kawasaki; H. R. Khan; H. Kichimi; H. J. Kim; K. Kinoshita; P. Križan; P. Krokovny; S. Kumar; Y. J. Kwon; J. S. Lange; S. E. Lee; Y. J. Lee; T. Lesiak; J. Li; A. Limosani; S. W. Lin; J. MacNaughton; T. Matsumoto; A. Matyja; Y. Mikami; W. Mitaroff; H. Miyata; R. Mizuk; D. Mohapatra; T. Mori; Y. Nagasaka; T. Nakadaira; E. Nakano; M. Nakao; Z. Natkaniec; S. Nishida; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; S. L. Olsen

doi:10.1103/PhysRevLett.94.121801

Study of B ⁰ → ρ±π∓ time-dependent CP violation at Belle

C. C. Wang, K. Abe, K. Abe, T. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aushev, A. M. Bakich, Y. Ban, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, P. ChangY. Chao, K. F. Chen, W. T. Chen, B. C. Cheon, S. K. Choi, Y. Choi, A. Chuvikov, S. Cole, M. Dash, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, T. Gershon, G. Gokhroo, R. Guo, J. Haba, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, K. Itoh, R. Itoh, H. Iwasaki, Y. Iwasaki, H. Kakuno, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, K. Kinoshita, P. Križan, P. Krokovny, S. Kumar, Y. J. Kwon, J. S. Lange, S. E. Lee, Y. J. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, J. MacNaughton, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, H. Miyata, R. Mizuk, D. Mohapatra, T. Mori, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen

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Abstract

We present a time-dependent analysis of CP violation in B ⁰→ rho;±π∓ decays based on a 140 fb ^-1 data sample collected at the υ(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A _CP ^ρπ = -0.16 ±0.10(stat) ±0.02(syst). An unbinned maximum-likelihood fit to the Δt distributions yields C _ρπ = 0.25 ± 0.17(stat) _-0.02 ^+0.02(syst), ΔC _ρπ = 0.38 ±0.18(stat) _-0.04 ^+0.02(syst), S _ρπ = -0.28 ±0.23(stat) _-0.08 ^+0.10(syst), and ΔS _ρπ = -0.30 ±0.24(stat) ±0.09(syst). The direct CP violation parameters for B→ρ ⁺π ^-B→ρ ^-π ⁺ decays are A _ρπ ^+- = -0.02 ±0.16(stat) _-0.02 ^+0.5(syst) and A _ρπ ^-+ = -0.53 ±0.29(stat) _-0.04 ^+0.9(syst).

Original language	English
Article number	121801
Journal	Physical Review Letters
Volume	94
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.94.121801
State	Published - 1 Apr 2005

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10.1103/PhysRevLett.94.121801

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Wang, C. C., Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., Asano, Y., Aushev, T., Bakich, A. M., Ban, Y., Bay, A., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., ... Olsen, S. L. (2005). Study of B ⁰ → ρ±π∓ time-dependent CP violation at Belle. Physical Review Letters, 94(12), Article 121801. https://doi.org/10.1103/PhysRevLett.94.121801

@article{b9b2d0d2def14c05b51e1e155a779488,

title = "Study of B 0 → ρ±π∓ time-dependent CP violation at Belle",

abstract = "We present a time-dependent analysis of CP violation in B 0→ rho;±π∓ decays based on a 140 fb -1 data sample collected at the υ(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A CP ρπ = -0.16 ±0.10(stat) ±0.02(syst). An unbinned maximum-likelihood fit to the Δt distributions yields C ρπ = 0.25 ± 0.17(stat) -0.02 +0.02(syst), ΔC ρπ = 0.38 ±0.18(stat) -0.04 +0.02(syst), S ρπ = -0.28 ±0.23(stat) -0.08 +0.10(syst), and ΔS ρπ = -0.30 ±0.24(stat) ±0.09(syst). The direct CP violation parameters for B→ρ +π -B→ρ -π + decays are A ρπ +- = -0.02 ±0.16(stat) -0.02 +0.5(syst) and A ρπ -+ = -0.53 ±0.29(stat) -0.04 +0.9(syst).",

author = "Wang, {C. C.} and K. Abe and K. Abe and T. Abe and I. Adachi and H. Aihara and Y. Asano and T. Aushev and Bakich, {A. M.} and Y. Ban and A. Bay and I. Bedny and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and P. Chang and Y. Chao and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. C.} and Choi, {S. K.} and Y. Choi and A. Chuvikov and S. Cole and M. Dash and Dong, {L. Y.} and J. Dragic and A. Drutskoy and S. Eidelman and V. Eiges and T. Gershon and G. Gokhroo and R. Guo and J. Haba and Hastings, {N. C.} and K. Hayasaka and H. Hayashii and M. Hazumi and T. Hokuue and Y. Hoshi and S. Hou and Hou, {W. S.} and Hsiung, {Y. B.} and T. Iijima and A. Imoto and K. Inami and A. Ishikawa and H. Ishino and K. Itoh and R. Itoh and H. Iwasaki and Y. Iwasaki and H. Kakuno and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and N. Katayama and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {H. J.} and K. Kinoshita and P. Kri{\v z}an and P. Krokovny and S. Kumar and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {S. E.} and Lee, {Y. J.} and T. Lesiak and J. Li and A. Limosani and Lin, {S. W.} and J. MacNaughton and T. Matsumoto and A. Matyja and Y. Mikami and W. Mitaroff and H. Miyata and R. Mizuk and D. Mohapatra and T. Mori and Y. Nagasaka and T. Nakadaira and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.}",

year = "2005",

month = apr,

day = "1",

doi = "10.1103/PhysRevLett.94.121801",

language = "English",

volume = "94",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

Wang, CC, Abe, K, Abe, K, Abe, T, Adachi, I, Aihara, H, Asano, Y, Aushev, T, Bakich, AM, Ban, Y, Bay, A, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chao, Y, Chen, KF, Chen, WT, Cheon, BC, Choi, SK, Choi, Y, Chuvikov, A, Cole, S, Dash, M, Dong, LY, Dragic, J, Drutskoy, A, Eidelman, S, Eiges, V, Gershon, T, Gokhroo, G, Guo, R, Haba, J, Hastings, NC, Hayasaka, K, Hayashii, H, Hazumi, M, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Imoto, A, Inami, K, Ishikawa, A, Ishino, H, Itoh, K, Itoh, R, Iwasaki, H, Iwasaki, Y, Kakuno, H, Kang, JH, Kang, JS, Kapusta, P, Katayama, N, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kinoshita, K, Križan, P, Krokovny, P, Kumar, S, Kwon, YJ, Lange, JS, Lee, SE, Lee, YJ, Lesiak, T, Li, J, Limosani, A, Lin, SW, MacNaughton, J, Matsumoto, T, Matyja, A, Mikami, Y, Mitaroff, W, Miyata, H, Mizuk, R, Mohapatra, D, Mori, T, Nagasaka, Y, Nakadaira, T, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S & Olsen, SL 2005, 'Study of B ⁰ → ρ±π∓ time-dependent CP violation at Belle', Physical Review Letters, vol. 94, no. 12, 121801. https://doi.org/10.1103/PhysRevLett.94.121801

TY - JOUR

T1 - Study of B 0 → ρ±π∓ time-dependent CP violation at Belle

AU - Wang, C. C.

AU - Abe, K.

AU - Abe, T.

AU - Adachi, I.

AU - Aihara, H.

AU - Asano, Y.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Bay, A.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. C.

AU - Choi, S. K.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dash, M.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Eiges, V.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Guo, R.

AU - Haba, J.

AU - Hastings, N. C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Iijima, T.

AU - Imoto, A.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, K.

AU - Itoh, R.

AU - Iwasaki, H.

AU - Iwasaki, Y.

AU - Kakuno, H.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kinoshita, K.

AU - Križan, P.

AU - Krokovny, P.

AU - Kumar, S.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, S. E.

AU - Lee, Y. J.

AU - Lesiak, T.

AU - Li, J.

AU - Limosani, A.

AU - Lin, S. W.

AU - MacNaughton, J.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mikami, Y.

AU - Mitaroff, W.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohapatra, D.

AU - Mori, T.

AU - Nagasaka, Y.

AU - Nakadaira, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

PY - 2005/4/1

Y1 - 2005/4/1

N2 - We present a time-dependent analysis of CP violation in B 0→ rho;±π∓ decays based on a 140 fb -1 data sample collected at the υ(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A CP ρπ = -0.16 ±0.10(stat) ±0.02(syst). An unbinned maximum-likelihood fit to the Δt distributions yields C ρπ = 0.25 ± 0.17(stat) -0.02 +0.02(syst), ΔC ρπ = 0.38 ±0.18(stat) -0.04 +0.02(syst), S ρπ = -0.28 ±0.23(stat) -0.08 +0.10(syst), and ΔS ρπ = -0.30 ±0.24(stat) ±0.09(syst). The direct CP violation parameters for B→ρ +π -B→ρ -π + decays are A ρπ +- = -0.02 ±0.16(stat) -0.02 +0.5(syst) and A ρπ -+ = -0.53 ±0.29(stat) -0.04 +0.9(syst).

AB - We present a time-dependent analysis of CP violation in B 0→ rho;±π∓ decays based on a 140 fb -1 data sample collected at the υ(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A CP ρπ = -0.16 ±0.10(stat) ±0.02(syst). An unbinned maximum-likelihood fit to the Δt distributions yields C ρπ = 0.25 ± 0.17(stat) -0.02 +0.02(syst), ΔC ρπ = 0.38 ±0.18(stat) -0.04 +0.02(syst), S ρπ = -0.28 ±0.23(stat) -0.08 +0.10(syst), and ΔS ρπ = -0.30 ±0.24(stat) ±0.09(syst). The direct CP violation parameters for B→ρ +π -B→ρ -π + decays are A ρπ +- = -0.02 ±0.16(stat) -0.02 +0.5(syst) and A ρπ -+ = -0.53 ±0.29(stat) -0.04 +0.9(syst).

UR - http://www.scopus.com/inward/record.url?scp=18144420439&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.94.121801

DO - 10.1103/PhysRevLett.94.121801

M3 - Article

AN - SCOPUS:18144420439

SN - 0031-9007

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 121801

ER -

Study of B ⁰ → ρ±π∓ time-dependent CP violation at Belle

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