Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes

N. Taniguchi; M. Nakao; S. Nishida; I. Adachi; H. Aihara; K. Arinstein; T. Aushev; T. Aziz; A. M. Bakich; V. Balagura; A. Bay; K. Belous; V. Bhardwaj; U. Bitenc; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; M. C. Chang; P. Chang; Y. Chao; A. Chen; K. F. Chen; W. T. Chen; B. G. Cheon; C. C. Chiang; I. S. Cho; Y. Choi; J. Dalseno; M. Dash; A. Drutskoy; W. Dungel; S. Eidelman; B. Golob; H. Ha; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; M. Hazumi; Y. Hoshi; W. S. Hou; H. J. Hyun; T. Iijima; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwabuchi; M. Iwasaki; Y. Iwasaki; N. J. Joshi; D. H. Kah; H. Kaji; J. H. Kang; H. Kawai; T. Kawasaki; H. Kichimi; S. K. Kim; Y. I. Kim; Y. J. Kim; K. Kinoshita; S. Korpar; P. Križan; P. Krokovny; R. Kumar; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; J. S. Lange; J. S. Lee; S. E. Lee; T. Lesiak; A. Limosani; S. W. Lin; C. Liu; Y. Liu; D. Liventsev; F. Mandl; S. McOnie; K. Miyabayashi; Y. Miyazaki; G. R. Moloney; Y. Nagasaka; I. Nakamura; E. Nakano; H. Nakazawa; Z. Natkaniec; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; H. Ozaki; P. Pakhlov; G. Pakhlova; C. W. Park; H. Park; H. K. Park; K. S. Park; L. S. Peak; L. E. Piilonen; H. Sahoo; Y. Sakai; N. Sasao; O. Schneider; J. Schümann; C. Schwanda; A. J. Schwartz; R. Seidl; K. Senyo; M. E. Sevior; M. Shapkin; C. P. Shen; J. G. Shiu; B. Shwartz; J. B. Singh; A. Sokolov; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; S. Y. Suzuki; N. Tamura; G. N. Taylor; Y. Teramoto; I. Tikhomirov; K. Trabelsi; T. Tsuboyama; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; G. Varner; C. H. Wang; M. Z. Wang; P. Wang; X. L. Wang; Y. Watanabe; R. Wedd; J. Wicht; E. Won; B. D. Yabsley; Y. Yamashita; Y. Yusa; Z. P. Zhang; V. Zhilich; V. Zhulanov; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevLett.101.111801

Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes

N. Taniguchi
, M. Nakao
, S. Nishida
, I. Adachi
, H. Aihara
, K. Arinstein
, T. Aushev
, T. Aziz
, A. M. Bakich
, V. Balagura
, A. Bay
, K. Belous
, V. Bhardwaj
, U. Bitenc
, A. Bondar
, A. Bozek
, M. Bračko
, T. E. Browder
, M. C. Chang
, P. Chang

Y. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, C. C. Chiang, I. S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, W. Dungel, S. Eidelman, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, K. Miyabayashi, Y. Miyazaki, G. R. Moloney, Y. Nagasaka, I. Nakamura, E. Nakano, H. Nakazawa, Z. Natkaniec, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, L. S. Peak, L. E. Piilonen, H. Sahoo, Y. Sakai, N. Sasao, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Y. Suzuki, N. Tamura, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

Kyoto University
High Energy Accelerator Research Organization (KEK)
University of Tokyo
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Institute for Theoretical and Experimental Physics
ENAC-IIC-GEL
Tata Institute of Fundamental Research, Mumbai
University of Sydney
Kurchatov Institute
Panjab University
Department of Biochemistry and Molecular and Structural Biology
Institute for Nuclear Physics
University of Maribor
University of Hawaii
Fu Jen Catholic University
National Taiwan University
National Central University
Hanyang University
Yonsei University
Sungkyunkwan University
Virginia Polytechnic Institute and State University
University of Cincinnati
Institut für Hochenergiephysik
University of Ljubljana
Korea University
Osaka University
Nagoya University
Nara Women's University
Tohoku Gakuin University
Kyungpook National University
Saga University
Tokyo Institute of Technology
The Graduate University for Advanced Studies
Chiba University
Niigata University
Seoul National University
Justus-Liebig-Universität Giessen
University of Melbourne
University of Science and Technology of China
Hiroshima Institute of Technology
Osaka City University
Tokyo University of Agriculture and Technology
Toho University
Kanagawa University
Institute of High Energy Physics, Chinese Academy of Sciences
University of Illinois at Urbana-Champaign
Riken BNL Research Center
University of Nova Gorica
Tokyo Metropolitan University
National United University Taiwan
Nippon Dental University

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

43 Citations (Scopus)

Abstract

We report new measurements of the decays B+→ρ+γ, B0→ρ0γ, and B0→ωγ using a data sample of 657×106 B meson pairs accumulated with the Belle detector at the KEKB e+e- collider. We measure branching fractions B(B+→ρ+γ)=(8.7-2.7-1. 1+2.9+0.9)×10-7, B(B0→ρ0γ)=(7.8-1.6-1.0+1.7+0.9)×10- 7, and B(B0→ωγ)=(4.0-1.7+1.9±1.3)×10-7. We also report the isospin asymmetry Δ(ργ)=-0.48-0.19-0.09+0.21+0.08 and the first measurement of the direct CP-violating asymmetry ACP(B+→ρ +γ)=-0.11±0.32±0.09, where the first and second errors are statistical and systematic, respectively.

Original language	English
Article number	111801
Journal	Physical Review Letters
Volume	101
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.101.111801
Publication status	Published - 12 Sept 2008
Externally published	Yes

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10.1103/PhysRevLett.101.111801

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Taniguchi, N., Nakao, M., Nishida, S., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Aziz, T., Bakich, A. M., Balagura, V., Bay, A., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., ... Zyukova, O. (2008). Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes. Physical Review Letters, 101(11), Article 111801. https://doi.org/10.1103/PhysRevLett.101.111801

@article{d22fa776f9ad42d09c8ccd874221d7a6,

title = "Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes",

abstract = "We report new measurements of the decays B+→ρ+γ, B0→ρ0γ, and B0→ωγ using a data sample of 657×106 B meson pairs accumulated with the Belle detector at the KEKB e+e- collider. We measure branching fractions B(B+→ρ+γ)=(8.7-2.7-1. 1+2.9+0.9)×10-7, B(B0→ρ0γ)=(7.8-1.6-1.0+1.7+0.9)×10- 7, and B(B0→ωγ)=(4.0-1.7+1.9±1.3)×10-7. We also report the isospin asymmetry Δ(ργ)=-0.48-0.19-0.09+0.21+0.08 and the first measurement of the direct CP-violating asymmetry ACP(B+→ρ +γ)=-0.11±0.32±0.09, where the first and second errors are statistical and systematic, respectively.",

author = "N. Taniguchi and M. Nakao and S. Nishida and I. Adachi and H. Aihara and K. Arinstein and T. Aushev and T. Aziz and Bakich, \{A. M.\} and V. Balagura and A. Bay and K. Belous and V. Bhardwaj and U. Bitenc and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and Chang, \{M. C.\} and P. Chang and Y. Chao and A. Chen and Chen, \{K. F.\} and Chen, \{W. T.\} and Cheon, \{B. G.\} and Chiang, \{C. C.\} and Cho, \{I. S.\} and Y. Choi and J. Dalseno and M. Dash and A. Drutskoy and W. Dungel and S. Eidelman and B. Golob and H. Ha and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and M. Hazumi and Y. Hoshi and Hou, \{W. S.\} and Hyun, \{H. J.\} and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwabuchi and M. Iwasaki and Y. Iwasaki and Joshi, \{N. J.\} and Kah, \{D. H.\} and H. Kaji and Kang, \{J. H.\} and H. Kawai and T. Kawasaki and H. Kichimi and Kim, \{S. K.\} and Kim, \{Y. I.\} and Kim, \{Y. J.\} and K. Kinoshita and S. Korpar and P. Kri{\v z}an and P. Krokovny and R. Kumar and A. Kuzmin and Kwon, \{Y. J.\} and Kyeong, \{S. H.\} and Lange, \{J. S.\} and Lee, \{J. S.\} and Lee, \{S. E.\} and T. Lesiak and A. Limosani and Lin, \{S. W.\} and C. Liu and Y. Liu and D. Liventsev and F. Mandl and S. McOnie and K. Miyabayashi and Y. Miyazaki and Moloney, \{G. R.\} and Y. Nagasaka and I. Nakamura and E. Nakano and H. Nakazawa and Z. Natkaniec and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, \{S. L.\} and H. Ozaki and P. Pakhlov and G. Pakhlova and Park, \{C. W.\} and H. Park and Park, \{H. K.\} and Park, \{K. S.\} and Peak, \{L. S.\} and Piilonen, \{L. E.\} and H. Sahoo and Y. Sakai and N. Sasao and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, \{A. J.\} and R. Seidl and K. Senyo and Sevior, \{M. E.\} and M. Shapkin and Shen, \{C. P.\} and Shiu, \{J. G.\} and B. Shwartz and Singh, \{J. B.\} and A. Sokolov and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and Suzuki, \{S. Y.\} and N. Tamura and Taylor, \{G. N.\} and Y. Teramoto and I. Tikhomirov and K. Trabelsi and T. Tsuboyama and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and G. Varner and Wang, \{C. H.\} and Wang, \{M. Z.\} and P. Wang and Wang, \{X. L.\} and Y. Watanabe and R. Wedd and J. Wicht and E. Won and Yabsley, \{B. D.\} and Y. Yamashita and Y. Yusa and Zhang, \{Z. P.\} and V. Zhilich and V. Zhulanov and T. Zivko and A. Zupanc and O. Zyukova",

year = "2008",

month = sep,

day = "12",

doi = "10.1103/PhysRevLett.101.111801",

language = "English",

volume = "101",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

Taniguchi, N, Nakao, M, Nishida, S, Adachi, I, Aihara, H, Arinstein, K, Aushev, T, Aziz, T, Bakich, AM, Balagura, V, Bay, A, Belous, K, Bhardwaj, V, Bitenc, U, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chang, P, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chiang, CC, Cho, IS, Choi, Y, Dalseno, J, Dash, M, Drutskoy, A, Dungel, W, Eidelman, S, Golob, B, Ha, H, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Hazumi, M, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwabuchi, M, Iwasaki, M, Iwasaki, Y, Joshi, NJ, Kah, DH, Kaji, H, Kang, JH, Kawai, H, Kawasaki, T, Kichimi, H, Kim, SK, Kim, YI, Kim, YJ, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kumar, R, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, JS, Lee, SE, Lesiak, T, Limosani, A, Lin, SW, Liu, C, Liu, Y, Liventsev, D, Mandl, F, McOnie, S, Miyabayashi, K, Miyazaki, Y, Moloney, GR, Nagasaka, Y, Nakamura, I, Nakano, E, Nakazawa, H, Natkaniec, Z, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Park, HK, Park, KS, Peak, LS, Piilonen, LE, Sahoo, H, Sakai, Y, Sasao, N, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Seidl, R, Senyo, K, Sevior, ME, Shapkin, M, Shen, CP, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Suzuki, SY, Tamura, N, Taylor, GN, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Tsuboyama, T, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Varner, G, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, Y, Wedd, R, Wicht, J, Won, E, Yabsley, BD, Yamashita, Y, Yusa, Y, Zhang, ZP, Zhilich, V, Zhulanov, V, Zivko, T, Zupanc, A & Zyukova, O 2008, 'Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes', Physical Review Letters, vol. 101, no. 11, 111801. https://doi.org/10.1103/PhysRevLett.101.111801

TY - JOUR

T1 - Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes

AU - Taniguchi, N.

AU - Nakao, M.

AU - Nishida, S.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Dash, M.

AU - Drutskoy, A.

AU - Dungel, W.

AU - Eidelman, S.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Joshi, N. J.

AU - Kah, D. H.

AU - Kaji, H.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, S. K.

AU - Kim, Y. I.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kumar, R.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, J. S.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Limosani, A.

AU - Lin, S. W.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Mandl, F.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyazaki, Y.

AU - Moloney, G. R.

AU - Nagasaka, Y.

AU - Nakamura, I.

AU - Nakano, E.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Park, K. S.

AU - Peak, L. S.

AU - Piilonen, L. E.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Sasao, N.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Sokolov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Suzuki, S. Y.

AU - Tamura, N.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Varner, G.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Wicht, J.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2008/9/12

Y1 - 2008/9/12

N2 - We report new measurements of the decays B+→ρ+γ, B0→ρ0γ, and B0→ωγ using a data sample of 657×106 B meson pairs accumulated with the Belle detector at the KEKB e+e- collider. We measure branching fractions B(B+→ρ+γ)=(8.7-2.7-1. 1+2.9+0.9)×10-7, B(B0→ρ0γ)=(7.8-1.6-1.0+1.7+0.9)×10- 7, and B(B0→ωγ)=(4.0-1.7+1.9±1.3)×10-7. We also report the isospin asymmetry Δ(ργ)=-0.48-0.19-0.09+0.21+0.08 and the first measurement of the direct CP-violating asymmetry ACP(B+→ρ +γ)=-0.11±0.32±0.09, where the first and second errors are statistical and systematic, respectively.

AB - We report new measurements of the decays B+→ρ+γ, B0→ρ0γ, and B0→ωγ using a data sample of 657×106 B meson pairs accumulated with the Belle detector at the KEKB e+e- collider. We measure branching fractions B(B+→ρ+γ)=(8.7-2.7-1. 1+2.9+0.9)×10-7, B(B0→ρ0γ)=(7.8-1.6-1.0+1.7+0.9)×10- 7, and B(B0→ωγ)=(4.0-1.7+1.9±1.3)×10-7. We also report the isospin asymmetry Δ(ργ)=-0.48-0.19-0.09+0.21+0.08 and the first measurement of the direct CP-violating asymmetry ACP(B+→ρ +γ)=-0.11±0.32±0.09, where the first and second errors are statistical and systematic, respectively.

U2 - 10.1103/PhysRevLett.101.111801

DO - 10.1103/PhysRevLett.101.111801

M3 - Article

AN - SCOPUS:52249117263

SN - 0031-9007

VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 111801

ER -

Measurement of branching fractions, isospin, and CP-violating asymmetries for exclusive b→dγ modes

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