Measurement of the B→L*γ branching fractions and asymmetries

M. Nakao, 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, A. Bay, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bračko & 147 others T. E. Browder, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, M. Danilov, M. Dash, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, M. Iwasaki, Ju Hwan Kang, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, T. H. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, A. Kuzmin, Youngjoon Kwon, J. S. Lange, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, H. Nakazawa, K. Neichi, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, P. Pakhlov, H. Palka, H. Park, N. Parslow, L. S. Peak, L. E. Piilonen, F. J. Ronga, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, B. Shwartz, J. B. Singh, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, T. Tomura, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, M. Z. Wang, M. Watanabe, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yang, J. Ying, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, V. Zhilich, T. Ziegler, D. Žontar

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

We report measurements of the radiative decay B→K*γ. The analysis is based on a data sample containing 85.0 × 10 6 B meson pairs collected by the Belle detector at the KEKB storage ring. We measure branching fractions of β(B 0→K* 0γ) = (4.01±0.21±0.17)× 10 -5 and β(B + →K* + γ) = (4.25±0.31±0.24)× 10 -5, where the first and second errors are statistical and systematic, respectively. The isospin asymmetry between B 0 and B + decay widths is measured to be Δ 0+ = + 0.012±0.044±0.026, assuming an equal production rate for B 00 and B +B - pairs from the γ(4S) resonance. We search for a partial rate asymmetry between CP conjugate modes, and find A CP(B→K*γ) = -0.015±0.0447plusmn;0.012.

Original languageEnglish
Article number112001
JournalPhysical Review D
Volume69
Issue number11
DOIs
Publication statusPublished - 2004 Dec 1

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asymmetry
decay
mesons
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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Nakao, M., Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., ... Žontar, D. (2004). Measurement of the B→L*γ branching fractions and asymmetries. Physical Review D, 69(11), [112001]. https://doi.org/10.1103/PhysRevD.69.112001
Nakao, M. ; 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. ; Bay, A. ; Bitenc, U. ; Bizjak, I. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, P. ; Chao, Y. ; Chen, K. F. ; Cheon, B. G. ; Chistov, R. ; Choi, Y. ; Chuvikov, A. ; Cole, S. ; Danilov, M. ; Dash, M. ; Dong, L. Y. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Eiges, V. ; Enari, Y. ; Fang, F. ; Fratina, S. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Hayashii, H. ; Hazumi, M. ; Higuchi, T. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, W. S. ; Hsiung, Y. B. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, H. ; Iwasaki, M. ; Kang, Ju Hwan ; Kang, J. S. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Kichimi, H. ; Kim, H. J. ; Kim, J. H. ; Kim, S. K. ; Kim, T. H. ; Kinoshita, K. ; Koppenburg, P. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kuzmin, A. ; Kwon, Youngjoon ; Lange, J. S. ; Lee, S. H. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Lin, S. W. ; MacNaughton, J. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Mikami, Y. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Mohapatra, D. ; Moloney, G. R. ; Mori, T. ; Nagamine, T. ; Nagasaka, Y. ; Nakano, E. ; Nakazawa, H. ; Neichi, K. ; Nishida, S. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Ostrowicz, W. ; Pakhlov, P. ; Palka, H. ; Park, H. ; Parslow, N. ; Peak, L. S. ; Piilonen, L. E. ; Ronga, F. J. ; Rozanska, M. ; Sagawa, H. ; Saitoh, S. ; Sakai, Y. ; Sarangi, T. R. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Semenov, S. ; Senyo, K. ; Seuster, R. ; Sevior, M. E. ; Shwartz, B. ; Singh, J. B. ; Soni, N. ; Stamen, R. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Suzuki, S. ; Tajima, O. ; Takasaki, F. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tomura, T. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Uno, S. ; Ushiroda, Y. ; Varner, G. ; Varvell, K. E. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Watanabe, M. ; Yamada, Y. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yang, H. ; Ying, J. ; Yusa, Y. ; Zhang, C. C. ; Zhang, J. ; Zhang, Z. P. ; Zhilich, V. ; Ziegler, T. ; Žontar, D. / Measurement of the B→L*γ branching fractions and asymmetries. In: Physical Review D. 2004 ; Vol. 69, No. 11.
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title = "Measurement of the B→L*γ branching fractions and asymmetries",
abstract = "We report measurements of the radiative decay B→K*γ. The analysis is based on a data sample containing 85.0 × 10 6 B meson pairs collected by the Belle detector at the KEKB storage ring. We measure branching fractions of β(B 0→K* 0γ) = (4.01±0.21±0.17)× 10 -5 and β(B + →K* + γ) = (4.25±0.31±0.24)× 10 -5, where the first and second errors are statistical and systematic, respectively. The isospin asymmetry between B 0 and B + decay widths is measured to be Δ 0+ = + 0.012±0.044±0.026, assuming an equal production rate for B 0B̄ 0 and B +B - pairs from the γ(4S) resonance. We search for a partial rate asymmetry between CP conjugate modes, and find A CP(B→K*γ) = -0.015±0.0447plusmn;0.012.",
author = "M. Nakao 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 A. Bay and U. Bitenc and I. Bizjak and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and P. Chang and Y. Chao and Chen, {K. F.} and Cheon, {B. G.} and R. Chistov and Y. Choi and A. Chuvikov and S. Cole and M. Danilov and M. Dash and Dong, {L. Y.} and J. Dragic and A. Drutskoy and S. Eidelman and V. Eiges and Y. Enari and F. Fang and S. Fratina and N. Gabyshev and A. Garmash and T. Gershon and G. Gokhroo and B. Golob and H. Hayashii and M. Hazumi and T. Higuchi and L. Hinz and T. Hokuue and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and H. Iwasaki and M. Iwasaki and Kang, {Ju Hwan} and Kang, {J. S.} and N. Katayama and H. Kawai and T. Kawasaki and H. Kichimi and Kim, {H. J.} and Kim, {J. H.} and Kim, {S. K.} and Kim, {T. H.} and K. Kinoshita and P. Koppenburg and S. Korpar and P. Križan and P. Krokovny and A. Kuzmin and Youngjoon Kwon and Lange, {J. S.} and Lee, {S. H.} and T. Lesiak and J. Li and A. Limosani and Lin, {S. W.} and J. MacNaughton and G. Majumder and F. Mandl and T. Matsumoto and Y. Mikami and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and D. Mohapatra and Moloney, {G. R.} and T. Mori and T. Nagamine and Y. Nagasaka and E. Nakano and H. Nakazawa and K. Neichi 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.} and W. Ostrowicz and P. Pakhlov and H. Palka and H. Park and N. Parslow and Peak, {L. S.} and Piilonen, {L. E.} and Ronga, {F. J.} and M. Rozanska and H. Sagawa and S. Saitoh and Y. Sakai and Sarangi, {T. R.} and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and S. Semenov and K. Senyo and R. Seuster and Sevior, {M. E.} and B. Shwartz and Singh, {J. B.} and N. Soni and R. Stamen and S. Stanič and M. Starič and T. Sumiyoshi and S. Suzuki and O. Tajima and F. Takasaki and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and T. Tomura and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and S. Uno and Y. Ushiroda and G. Varner and Varvell, {K. E.} and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and M. Watanabe and Y. Yamada and A. Yamaguchi and Y. Yamashita and M. Yamauchi and H. Yang and J. Ying and Y. Yusa and Zhang, {C. C.} and J. Zhang and Zhang, {Z. P.} and V. Zhilich and T. Ziegler and D. Žontar",
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Nakao, M, 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, Bay, A, Bitenc, U, Bizjak, I, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, P, Chao, Y, Chen, KF, Cheon, BG, Chistov, R, Choi, Y, Chuvikov, A, Cole, S, Danilov, M, Dash, M, Dong, LY, Dragic, J, Drutskoy, A, Eidelman, S, Eiges, V, Enari, Y, Fang, F, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Golob, B, Hayashii, H, Hazumi, M, Higuchi, T, Hinz, L, Hokuue, T, Hoshi, Y, Hou, WS, Hsiung, YB, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, H, Iwasaki, M, Kang, JH, Kang, JS, Katayama, N, Kawai, H, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, JH, Kim, SK, Kim, TH, Kinoshita, K, Koppenburg, P, Korpar, S, Križan, P, Krokovny, P, Kuzmin, A, Kwon, Y, Lange, JS, Lee, SH, Lesiak, T, Li, J, Limosani, A, Lin, SW, MacNaughton, J, Majumder, G, Mandl, F, Matsumoto, T, Mikami, Y, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Mohapatra, D, Moloney, GR, Mori, T, Nagamine, T, Nagasaka, Y, Nakano, E, Nakazawa, H, Neichi, K, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ostrowicz, W, Pakhlov, P, Palka, H, Park, H, Parslow, N, Peak, LS, Piilonen, LE, Ronga, FJ, Rozanska, M, Sagawa, H, Saitoh, S, Sakai, Y, Sarangi, TR, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Semenov, S, Senyo, K, Seuster, R, Sevior, ME, Shwartz, B, Singh, JB, Soni, N, Stamen, R, Stanič, S, Starič, M, Sumiyoshi, T, Suzuki, S, Tajima, O, Takasaki, F, Tanaka, M, Taylor, GN, Teramoto, Y, Tomura, T, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Uno, S, Ushiroda, Y, Varner, G, Varvell, KE, Wang, CC, Wang, CH, Wang, MZ, Watanabe, M, Yamada, Y, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yang, H, Ying, J, Yusa, Y, Zhang, CC, Zhang, J, Zhang, ZP, Zhilich, V, Ziegler, T & Žontar, D 2004, 'Measurement of the B→L*γ branching fractions and asymmetries', Physical Review D, vol. 69, no. 11, 112001. https://doi.org/10.1103/PhysRevD.69.112001

Measurement of the B→L*γ branching fractions and asymmetries. / Nakao, M.; 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.; Bay, A.; Bitenc, U.; Bizjak, I.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, K. F.; Cheon, B. G.; Chistov, R.; Choi, Y.; Chuvikov, A.; Cole, S.; Danilov, M.; Dash, M.; Dong, L. Y.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Eiges, V.; Enari, Y.; Fang, F.; Fratina, S.; Gabyshev, N.; Garmash, A.; Gershon, T.; Gokhroo, G.; Golob, B.; Hayashii, H.; Hazumi, M.; Higuchi, T.; Hinz, L.; Hokuue, T.; Hoshi, Y.; Hou, W. S.; Hsiung, Y. B.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, H.; Iwasaki, M.; Kang, Ju Hwan; Kang, J. S.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, J. H.; Kim, S. K.; Kim, T. H.; Kinoshita, K.; Koppenburg, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Youngjoon; Lange, J. S.; Lee, S. H.; Lesiak, T.; Li, J.; Limosani, A.; Lin, S. W.; MacNaughton, J.; Majumder, G.; Mandl, F.; Matsumoto, T.; Mikami, Y.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Mohapatra, D.; Moloney, G. R.; Mori, T.; Nagamine, T.; Nagasaka, Y.; Nakano, E.; Nakazawa, H.; Neichi, K.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Pakhlov, P.; Palka, H.; Park, H.; Parslow, N.; Peak, L. S.; Piilonen, L. E.; Ronga, F. J.; Rozanska, M.; Sagawa, H.; Saitoh, S.; Sakai, Y.; Sarangi, T. R.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Semenov, S.; Senyo, K.; Seuster, R.; Sevior, M. E.; Shwartz, B.; Singh, J. B.; Soni, N.; Stamen, R.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Suzuki, S.; Tajima, O.; Takasaki, F.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tomura, T.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Uno, S.; Ushiroda, Y.; Varner, G.; Varvell, K. E.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Watanabe, M.; Yamada, Y.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yang, H.; Ying, J.; Yusa, Y.; Zhang, C. C.; Zhang, J.; Zhang, Z. P.; Zhilich, V.; Ziegler, T.; Žontar, D.

In: Physical Review D, Vol. 69, No. 11, 112001, 01.12.2004.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the B→L*γ branching fractions and asymmetries

AU - Nakao, M.

AU - Abe, 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 - Bay, A.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, K. F.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Danilov, M.

AU - Dash, M.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Fang, F.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Higuchi, T.

AU - Hinz, L.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwasaki, H.

AU - Iwasaki, M.

AU - Kang, Ju Hwan

AU - Kang, J. S.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, J. H.

AU - Kim, S. K.

AU - Kim, T. H.

AU - Kinoshita, K.

AU - Koppenburg, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Kwon, Youngjoon

AU - Lange, J. S.

AU - Lee, S. H.

AU - Lesiak, T.

AU - Li, J.

AU - Limosani, A.

AU - Lin, S. W.

AU - MacNaughton, J.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Mikami, Y.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Mohapatra, D.

AU - Moloney, G. R.

AU - Mori, T.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakazawa, H.

AU - Neichi, K.

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.

AU - Ostrowicz, W.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, H.

AU - Parslow, N.

AU - Peak, L. S.

AU - Piilonen, L. E.

AU - Ronga, F. J.

AU - Rozanska, M.

AU - Sagawa, H.

AU - Saitoh, S.

AU - Sakai, Y.

AU - Sarangi, T. R.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Semenov, S.

AU - Senyo, K.

AU - Seuster, R.

AU - Sevior, M. E.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Soni, N.

AU - Stamen, R.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Tajima, O.

AU - Takasaki, F.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tomura, T.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, M.

AU - Yamada, Y.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yang, H.

AU - Ying, J.

AU - Yusa, Y.

AU - Zhang, C. C.

AU - Zhang, J.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Ziegler, T.

AU - Žontar, D.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - We report measurements of the radiative decay B→K*γ. The analysis is based on a data sample containing 85.0 × 10 6 B meson pairs collected by the Belle detector at the KEKB storage ring. We measure branching fractions of β(B 0→K* 0γ) = (4.01±0.21±0.17)× 10 -5 and β(B + →K* + γ) = (4.25±0.31±0.24)× 10 -5, where the first and second errors are statistical and systematic, respectively. The isospin asymmetry between B 0 and B + decay widths is measured to be Δ 0+ = + 0.012±0.044±0.026, assuming an equal production rate for B 0B̄ 0 and B +B - pairs from the γ(4S) resonance. We search for a partial rate asymmetry between CP conjugate modes, and find A CP(B→K*γ) = -0.015±0.0447plusmn;0.012.

AB - We report measurements of the radiative decay B→K*γ. The analysis is based on a data sample containing 85.0 × 10 6 B meson pairs collected by the Belle detector at the KEKB storage ring. We measure branching fractions of β(B 0→K* 0γ) = (4.01±0.21±0.17)× 10 -5 and β(B + →K* + γ) = (4.25±0.31±0.24)× 10 -5, where the first and second errors are statistical and systematic, respectively. The isospin asymmetry between B 0 and B + decay widths is measured to be Δ 0+ = + 0.012±0.044±0.026, assuming an equal production rate for B 0B̄ 0 and B +B - pairs from the γ(4S) resonance. We search for a partial rate asymmetry between CP conjugate modes, and find A CP(B→K*γ) = -0.015±0.0447plusmn;0.012.

UR - http://www.scopus.com/inward/record.url?scp=33750484026&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33750484026&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.69.112001

DO - 10.1103/PhysRevD.69.112001

M3 - Article

VL - 69

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 11

M1 - 112001

ER -

Nakao M, Abe K, Abe K, Abe T, Adachi I, Aihara H et al. Measurement of the B→L*γ branching fractions and asymmetries. Physical Review D. 2004 Dec 1;69(11). 112001. https://doi.org/10.1103/PhysRevD.69.112001