Observation of b→dγ and determination of |Vtd/Vts|

D. Mohapatra, M. Nakao, S. Nishida, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, V. Balagura, M. Barbero, I. Bedny, U. Bitenc, I. Bizjak, S. BlythA. Bondar, A. Bozek, M. Bračko, T. E. Browder, Y. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, H. C. Ha, J. Haba, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, H. O. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, J. Lee, T. Lesiak, A. Limosani, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, F. J. Ronga, M. Rozanska, Y. Sakai, T. R. Sarangi, N. Sato, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, R. Seidl, M. E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, Y. Watanabe, J. Wicht, Eunil Won, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Zürcher

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

We report the observation of the flavor-changing neutral current process b→dγ using a sample of 386×106 B meson pairs accumulated by the Belle detector at the KEKB e+e- collider. We measure branching fractions for the exclusive modes B-→ρ-γ, B̄0→ρ0γ, and B̄0→ωγ. Assuming that these three modes are related by isospin, we find B(B̄→(ρ,ω)γ)=(1.32-0.31+0.34(stat)-0.09+0.10(syst)) ×10-6 with a significance of 5.1σ. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements |Vtd/Vts| to be 0.199-0.025+0.026(exp)-0.015+0.018(theor).

Original languageEnglish
Article number221601
JournalPhysical Review Letters
Volume96
Issue number22
DOIs
Publication statusPublished - 2006 Jun 19

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neutral currents
mesons
detectors
matrices

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mohapatra, D., Nakao, M., Nishida, S., Abe, K., Abe, K., Adachi, I., ... Zürcher, D. (2006). Observation of b→dγ and determination of |Vtd/Vts|. Physical Review Letters, 96(22), [221601]. https://doi.org/10.1103/PhysRevLett.96.221601

Observation of b→dγ and determination of |Vtd/Vts|. / Mohapatra, D.; Nakao, M.; Nishida, S.; Abe, K.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Arinstein, K.; Asano, Y.; Aulchenko, V.; Aushev, T.; Bahinipati, S.; Bakich, A. M.; Balagura, V.; Barbero, M.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, K. F.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Choi, Y.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Fratina, S.; Gabyshev, N.; Gershon, T.; Gokhroo, G.; Golob, B.; Gorišek, A.; Ha, H. C.; Haba, J.; Hara, T.; Hastings, N. C.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hinz, L.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Hsiung, Y. B.; Iijima, T.; Imoto, A.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J. H.; Kataoka, S. U.; Katayama, N.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, H. J.; Kim, H. O.; Kim, S. M.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Leder, G.; Lee, J.; Lesiak, T.; Limosani, A.; Lin, S. W.; Liventsev, D.; Majumder, G.; Mandl, F.; Marlow, D.; Matsumoto, T.; Matyja, A.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Mori, T.; Nakano, E.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Palka, H.; Park, C. W.; Parslow, N.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Poluektov, A.; Ronga, F. J.; Rozanska, M.; Sakai, Y.; Sarangi, T. R.; Sato, N.; Schietinger, T.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Seidl, R.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Sokolov, A.; Somov, A.; Soni, N.; Stamen, R.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Suzuki, S.; Tajima, O.; Takasaki, F.; Tamai, K.; Tamura, N.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Trabelsi, K.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Watanabe, Y.; Wicht, J.; Won, Eunil; Xie, Q. L.; Yabsley, B. D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Ying, J.; Yusa, Y.; Zhang, L. M.; Zhang, Z. P.; Zhilich, V.; Zürcher, D.

In: Physical Review Letters, Vol. 96, No. 22, 221601, 19.06.2006.

Research output: Contribution to journalArticle

Mohapatra, D, Nakao, M, Nishida, S, Abe, K, Abe, K, Adachi, I, Aihara, H, Anipko, D, Arinstein, K, Asano, Y, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Balagura, V, Barbero, M, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chistov, R, Choi, Y, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Dragic, J, Drutskoy, A, Eidelman, S, Epifanov, D, Fratina, S, Gabyshev, N, Gershon, T, Gokhroo, G, Golob, B, Gorišek, A, Ha, HC, Haba, J, Hara, T, Hastings, NC, Hayasaka, K, Hayashii, H, Hazumi, M, Hinz, L, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Imoto, A, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kataoka, SU, Katayama, N, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kim, HO, Kim, SM, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kulasiri, R, Kumar, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Lange, JS, Leder, G, Lee, J, Lesiak, T, Limosani, A, Lin, SW, Liventsev, D, Majumder, G, Mandl, F, Marlow, D, Matsumoto, T, Matyja, A, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Mori, T, Nakano, E, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Parslow, N, Peak, LS, Pestotnik, R, Piilonen, LE, Poluektov, A, Ronga, FJ, Rozanska, M, Sakai, Y, Sarangi, TR, Sato, N, Schietinger, T, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Seidl, R, Sevior, ME, Shapkin, M, Shibuya, H, Shwartz, B, Sidorov, V, Sokolov, A, Somov, A, Soni, N, Stamen, R, Stanič, S, Starič, M, Sumiyoshi, T, Suzuki, S, Tajima, O, Takasaki, F, Tamai, K, Tamura, N, Tanaka, M, Taylor, GN, Teramoto, Y, Tian, XC, Trabelsi, K, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Varner, G, Varvell, KE, Villa, S, Wang, CC, Wang, CH, Wang, MZ, Watanabe, Y, Wicht, J, Won, E, Xie, QL, Yabsley, BD, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Ying, J, Yusa, Y, Zhang, LM, Zhang, ZP, Zhilich, V & Zürcher, D 2006, 'Observation of b→dγ and determination of |Vtd/Vts|', Physical Review Letters, vol. 96, no. 22, 221601. https://doi.org/10.1103/PhysRevLett.96.221601
Mohapatra D, Nakao M, Nishida S, Abe K, Abe K, Adachi I et al. Observation of b→dγ and determination of |Vtd/Vts|. Physical Review Letters. 2006 Jun 19;96(22). 221601. https://doi.org/10.1103/PhysRevLett.96.221601
Mohapatra, D. ; Nakao, M. ; Nishida, S. ; Abe, K. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Anipko, D. ; Arinstein, K. ; Asano, Y. ; Aulchenko, V. ; Aushev, T. ; Bahinipati, S. ; Bakich, A. M. ; Balagura, V. ; Barbero, M. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chao, Y. ; Chen, A. ; Chen, K. F. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Choi, Y. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Epifanov, D. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Gorišek, A. ; Ha, H. C. ; Haba, J. ; Hara, T. ; Hastings, N. C. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Hsiung, Y. B. ; Iijima, T. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J. H. ; Kataoka, S. U. ; Katayama, N. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, H. J. ; Kim, H. O. ; Kim, S. M. ; Kinoshita, K. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kumar, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Lange, J. S. ; Leder, G. ; Lee, J. ; Lesiak, T. ; Limosani, A. ; Lin, S. W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Marlow, D. ; Matsumoto, T. ; Matyja, A. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Mori, T. ; Nakano, E. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, C. W. ; Parslow, N. ; Peak, L. S. ; Pestotnik, R. ; Piilonen, L. E. ; Poluektov, A. ; Ronga, F. J. ; Rozanska, M. ; Sakai, Y. ; Sarangi, T. R. ; Sato, N. ; Schietinger, T. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Seidl, R. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Sokolov, A. ; Somov, A. ; Soni, N. ; Stamen, R. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Suzuki, S. ; Tajima, O. ; Takasaki, F. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tian, X. C. ; Trabelsi, K. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Varner, G. ; Varvell, K. E. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Watanabe, Y. ; Wicht, J. ; Won, Eunil ; Xie, Q. L. ; Yabsley, B. D. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Ying, J. ; Yusa, Y. ; Zhang, L. M. ; Zhang, Z. P. ; Zhilich, V. ; Zürcher, D. / Observation of b→dγ and determination of |Vtd/Vts|. In: Physical Review Letters. 2006 ; Vol. 96, No. 22.
@article{9458ff89b14c4cb5bdf2484500a3cbdc,
title = "Observation of b→dγ and determination of |Vtd/Vts|",
abstract = "We report the observation of the flavor-changing neutral current process b→dγ using a sample of 386×106 B meson pairs accumulated by the Belle detector at the KEKB e+e- collider. We measure branching fractions for the exclusive modes B-→ρ-γ, B̄0→ρ0γ, and B̄0→ωγ. Assuming that these three modes are related by isospin, we find B(B̄→(ρ,ω)γ)=(1.32-0.31+0.34(stat)-0.09+0.10(syst)) ×10-6 with a significance of 5.1σ. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements |Vtd/Vts| to be 0.199-0.025+0.026(exp)-0.015+0.018(theor).",
author = "D. Mohapatra and M. Nakao and S. Nishida and K. Abe and K. Abe and I. Adachi and H. Aihara and D. Anipko and K. Arinstein and Y. Asano and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, {A. M.} and V. Balagura and M. Barbero and I. Bedny and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bračko and Browder, {T. E.} and Y. Chao and A. Chen and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Y. Choi and A. Chuvikov and S. Cole and J. Dalseno and M. Danilov and M. Dash and J. Dragic and A. Drutskoy and S. Eidelman and D. Epifanov and S. Fratina and N. Gabyshev and T. Gershon and G. Gokhroo and B. Golob and A. Gorišek and Ha, {H. C.} and J. Haba and T. Hara and Hastings, {N. C.} and K. Hayasaka and H. Hayashii and M. Hazumi and L. Hinz 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 R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kataoka, {S. U.} and N. Katayama and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {H. J.} and Kim, {H. O.} and Kim, {S. M.} and K. Kinoshita and S. Korpar and P. Križan and P. Krokovny and R. Kulasiri and R. Kumar and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and J. Lee and T. Lesiak and A. Limosani and Lin, {S. W.} and D. Liventsev and G. Majumder and F. Mandl and D. Marlow and T. Matsumoto and A. Matyja and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, {G. R.} and T. Mori and E. Nakano and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and N. Parslow and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and A. Poluektov and Ronga, {F. J.} and M. Rozanska and Y. Sakai and Sarangi, {T. R.} and N. Sato and T. Schietinger and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and R. Seidl and Sevior, {M. E.} and M. Shapkin and H. Shibuya and B. Shwartz and V. Sidorov and A. Sokolov and A. Somov 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 K. Tamai and N. Tamura and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and Tian, {X. C.} and K. Trabelsi and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and Y. Unno and S. Uno and P. Urquijo and Y. Usov and G. Varner and Varvell, {K. E.} and S. Villa and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and Y. Watanabe and J. Wicht and Eunil Won and Xie, {Q. L.} and Yabsley, {B. D.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and J. Ying and Y. Yusa and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and D. Z{\"u}rcher",
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TY - JOUR

T1 - Observation of b→dγ and determination of |Vtd/Vts|

AU - Mohapatra, D.

AU - Nakao, M.

AU - Nishida, S.

AU - Abe, K.

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Anipko, D.

AU - Arinstein, K.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barbero, M.

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 - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Gorišek, A.

AU - Ha, H. C.

AU - Haba, J.

AU - Hara, T.

AU - Hastings, N. C.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hinz, L.

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, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, S. M.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kumar, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Leder, G.

AU - Lee, J.

AU - Lesiak, T.

AU - Limosani, A.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Mandl, F.

AU - Marlow, D.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Mori, T.

AU - Nakano, E.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Parslow, N.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Ronga, F. J.

AU - Rozanska, M.

AU - Sakai, Y.

AU - Sarangi, T. R.

AU - Sato, N.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Sokolov, A.

AU - Somov, A.

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 - Tamai, K.

AU - Tamura, N.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Trabelsi, K.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Wicht, J.

AU - Won, Eunil

AU - Xie, Q. L.

AU - Yabsley, B. D.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Ying, J.

AU - Yusa, Y.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zürcher, D.

PY - 2006/6/19

Y1 - 2006/6/19

N2 - We report the observation of the flavor-changing neutral current process b→dγ using a sample of 386×106 B meson pairs accumulated by the Belle detector at the KEKB e+e- collider. We measure branching fractions for the exclusive modes B-→ρ-γ, B̄0→ρ0γ, and B̄0→ωγ. Assuming that these three modes are related by isospin, we find B(B̄→(ρ,ω)γ)=(1.32-0.31+0.34(stat)-0.09+0.10(syst)) ×10-6 with a significance of 5.1σ. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements |Vtd/Vts| to be 0.199-0.025+0.026(exp)-0.015+0.018(theor).

AB - We report the observation of the flavor-changing neutral current process b→dγ using a sample of 386×106 B meson pairs accumulated by the Belle detector at the KEKB e+e- collider. We measure branching fractions for the exclusive modes B-→ρ-γ, B̄0→ρ0γ, and B̄0→ωγ. Assuming that these three modes are related by isospin, we find B(B̄→(ρ,ω)γ)=(1.32-0.31+0.34(stat)-0.09+0.10(syst)) ×10-6 with a significance of 5.1σ. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements |Vtd/Vts| to be 0.199-0.025+0.026(exp)-0.015+0.018(theor).

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U2 - 10.1103/PhysRevLett.96.221601

DO - 10.1103/PhysRevLett.96.221601

M3 - Article

AN - SCOPUS:33745056734

VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 22

M1 - 221601

ER -