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. ChangY. 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

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

36 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 - Sept 12 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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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

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

@article{63fd0dc60e724f7f9faeb7aa097bf679,

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",

}

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.

UR - http://www.scopus.com/inward/record.url?scp=52249117263&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=52249117263&partnerID=8YFLogxK

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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