Observation of B+→pΛ̄γ

Y. J. Lee; M. Z. Wang; K. Abe; K. Abe; H. Aihara; Y. Asano; V. Aulchenko; T. Aushev; S. Bahinipati; A. M. Bakich; I. Bedny; U. Bitenc; I. Bizjak; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; M. C. Chang; P. Chang; Y. Chao; A. Chen; K. F. Chen; W. T. Chen; B. G. Cheon; R. Chistov; S. K. Choi; A. Chuvikov; S. Cole; J. Dalseno; M. Danilov; M. Dash; A. Drutskoy; S. Eidelman; Y. Enari; F. Fang; S. Fratina; N. Gabyshev; A. Garmash; T. Gershon; G. Gokhroo; B. Golob; A. Gorišek; J. Haba; K. Hayasaka; M. Hazumi; L. Hinz; T. Hokuue; Y. Hoshi; S. Hou; W. S. Hou; Y. B. Hsiung; T. Iijima; A. Imoto; K. Inami; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; J. H. Kang; J. S. Kang; P. Kapusta; N. Katayama; H. Kawai; T. Kawasaki; H. R. Khan; H. Kichimi; H. J. Kim; S. K. Kim; S. M. Kim; K. Kinoshita; S. Korpar; P. Križan; P. Krokovny; S. Kumar; C. C. Kuo; A. Kuzmin; Y. J. Kwon; G. Leder; S. E. Lee; T. Lesiak; J. Li; S. W. Lin; D. Liventsev; F. Mandl; T. Matsumoto; A. Matyja; W. Mitaroff; H. Miyake; H. Miyata; R. Mizuk; G. R. Moloney; T. Nagamine; Y. Nagasaka; E. Nakano; M. Nakao; H. Nakazawa; Z. Natkaniec; S. Nishida; O. Nitoh; S. Ogawa; T. Ohshima; T. Okabe; S. L. Olsen; W. Ostrowicz; H. Ozaki; H. Palka; C. W. Park; N. Parslow; L. S. Peak; R. Pestotnik; L. E. Piilonen; N. Root; M. Rozanska; H. Sagawa; Y. Sakai; N. Sato; T. Schietinger; O. Schneider; J. Schümann; K. Senyo; M. E. Sevior; T. Shibata; H. Shibuya; B. Shwartz; V. Sidorov; J. B. Singh; A. Somov; R. Stamen; S. Stanič; M. Starič; K. Sumisawa; T. Sumiyoshi; O. Tajima; F. Takasaki; K. Tamai; N. Tamura; M. Tanaka; Y. Teramoto; X. C. Tian; T. Tsukamoto; S. Uehara; T. Uglov; K. Ueno; S. Uno; P. Urquijo; G. Varner; K. E. Varvell; S. Villa; C. C. Wang; C. H. Wang; M. Watanabe; Q. L. Xie; A. Yamaguchi; Y. Yamashita; M. Yamauchi; Heyoung Yang; J. Ying; C. C. Zhang; L. M. Zhang; Z. P. Zhang; V. Zhilich; D. Žontar; D. Zürcher

doi:10.1103/PhysRevLett.95.061802

Observation of B+→pΛ̄γ

Y. J. Lee, M. Z. Wang, K. Abe, K. Abe, H. Aihara, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, M. C. Chang, P. ChangY. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, K. Hayasaka, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, S. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, R. Mizuk, G. R. Moloney, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, N. Root, M. Rozanska, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, M. E. Sevior, T. Shibata, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, A. Somov, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Watanabe, Q. L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Heyoung Yang, J. Ying, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar, D. Zürcher

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

28 Scopus citations

Abstract

We report the first observation of the radiative hyperonic B decay B+→pΛ̄γ, using a 140fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+→pΛ̄γ)= (2.16-0.53+0.58±0.20)×10-6. We examine its MpΛ̄ distribution and observe a peak near threshold. This feature is expected by the short-distance b→sγ transition. A search for B+→pΣ̄ 0γ yields no significant signal, and we set a 90% confidence-level upper limit on the branching fraction of B(B+→pΣ̄0γ)<4. 6×10-6.

Original language	English
Article number	061802
Journal	Physical Review Letters
Volume	95
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.95.061802
State	Published - 5 Aug 2005

Access to Document

10.1103/PhysRevLett.95.061802

Cite this

Lee, Y. J., Wang, M. Z., Abe, K., Abe, K., Aihara, H., Asano, Y., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., ... Zürcher, D. (2005). Observation of B+→pΛ̄γ. Physical Review Letters, 95(6), Article 061802. https://doi.org/10.1103/PhysRevLett.95.061802

@article{416b9f7c624f4f61a6da87eec859d748,

title = "Observation of B+→p{\=Λ}γ",

abstract = "We report the first observation of the radiative hyperonic B decay B+→p{\=Λ}γ, using a 140fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+→p{\=Λ}γ)= (2.16-0.53+0.58±0.20)×10-6. We examine its Mp{\=Λ} distribution and observe a peak near threshold. This feature is expected by the short-distance b→sγ transition. A search for B+→p{\=Σ} 0γ yields no significant signal, and we set a 90% confidence-level upper limit on the branching fraction of B(B+→p{\=Σ}0γ)<4. 6×10-6.",

author = "Lee, {Y. J.} and Wang, {M. Z.} and K. Abe and K. Abe and H. Aihara and Y. Asano and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, {A. M.} and I. Bedny and U. Bitenc and I. Bizjak and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka 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 R. Chistov and Choi, {S. K.} and A. Chuvikov and S. Cole and J. Dalseno and M. Danilov and M. Dash and A. Drutskoy and S. Eidelman 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 A. Gori{\v s}ek and J. Haba and K. Hayasaka 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 R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {H. J.} and Kim, {S. K.} and Kim, {S. M.} and K. Kinoshita and S. Korpar and P. Kri{\v z}an and P. Krokovny and S. Kumar and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and G. Leder and Lee, {S. E.} and T. Lesiak and J. Li and Lin, {S. W.} and D. Liventsev and F. Mandl and T. Matsumoto and A. Matyja and W. Mitaroff and H. Miyake and H. Miyata and R. Mizuk and Moloney, {G. R.} and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Nishida and O. Nitoh and S. Ogawa and T. Ohshima and T. Okabe and Olsen, {S. L.} and W. Ostrowicz and H. Ozaki and H. Palka and Park, {C. W.} and N. Parslow and Peak, {L. S.} and R. Pestotnik and Piilonen, {L. E.} and N. Root and M. Rozanska and H. Sagawa and Y. Sakai and N. Sato and T. Schietinger and O. Schneider and J. Sch{\"u}mann and K. Senyo and Sevior, {M. E.} and T. Shibata and H. Shibuya and B. Shwartz and V. Sidorov and Singh, {J. B.} and A. Somov and R. Stamen and S. Stani{\v c} and M. Stari{\v c} and K. Sumisawa and T. Sumiyoshi and O. Tajima and F. Takasaki and K. Tamai and N. Tamura and M. Tanaka and Y. Teramoto and Tian, {X. C.} and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and S. Uno and P. Urquijo and G. Varner and Varvell, {K. E.} and S. Villa and Wang, {C. C.} and Wang, {C. H.} and M. Watanabe and Xie, {Q. L.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and Heyoung Yang and J. Ying and Zhang, {C. C.} and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and D. {\v Z}ontar and D. Z{\"u}rcher",

year = "2005",

month = aug,

day = "5",

doi = "10.1103/PhysRevLett.95.061802",

language = "English",

volume = "95",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

Lee, YJ, Wang, MZ, Abe, K, Abe, K, Aihara, H, Asano, Y, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Bedny, I, Bitenc, U, Bizjak, I, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, MC, Chang, P, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chistov, R, Choi, SK, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Eidelman, S, Enari, Y, Fang, F, Fratina, S, Gabyshev, N, Garmash, A, Gershon, T, Gokhroo, G, Golob, B, Gorišek, A, Haba, J, Hayasaka, K, Hazumi, M, Hinz, L, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Imoto, A, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kapusta, P, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, HJ, Kim, SK, Kim, SM, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kumar, S, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lee, SE, Lesiak, T, Li, J, Lin, SW, Liventsev, D, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyake, H, Miyata, H, Mizuk, R, Moloney, GR, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okabe, T, Olsen, SL, Ostrowicz, W, Ozaki, H, Palka, H, Park, CW, Parslow, N, Peak, LS, Pestotnik, R, Piilonen, LE, Root, N, Rozanska, M, Sagawa, H, Sakai, Y, Sato, N, Schietinger, T, Schneider, O, Schümann, J, Senyo, K, Sevior, ME, Shibata, T, Shibuya, H, Shwartz, B, Sidorov, V, Singh, JB, Somov, A, Stamen, R, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Tajima, O, Takasaki, F, Tamai, K, Tamura, N, Tanaka, M, Teramoto, Y, Tian, XC, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Uno, S, Urquijo, P, Varner, G, Varvell, KE, Villa, S, Wang, CC, Wang, CH, Watanabe, M, Xie, QL, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yang, H, Ying, J, Zhang, CC, Zhang, LM, Zhang, ZP, Zhilich, V, Žontar, D & Zürcher, D 2005, 'Observation of B+→pΛ̄γ', Physical Review Letters, vol. 95, no. 6, 061802. https://doi.org/10.1103/PhysRevLett.95.061802

TY - JOUR

T1 - Observation of B+→pΛ̄γ

AU - Lee, Y. J.

AU - Wang, M. Z.

AU - Abe, K.

AU - Aihara, H.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

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 - Chistov, R.

AU - Choi, S. K.

AU - Chuvikov, A.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

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 - Gorišek, A.

AU - Haba, J.

AU - Hayasaka, K.

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 - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, S. K.

AU - Kim, S. M.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kumar, S.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Li, J.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyake, H.

AU - Miyata, H.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Palka, H.

AU - Park, C. W.

AU - Parslow, N.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Root, N.

AU - Rozanska, M.

AU - Sagawa, H.

AU - Sakai, Y.

AU - Sato, N.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schümann, J.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shibata, T.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Singh, J. B.

AU - Somov, A.

AU - Stamen, R.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Tajima, O.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tamura, N.

AU - Tanaka, M.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Uno, S.

AU - Urquijo, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Watanabe, M.

AU - Xie, Q. L.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yang, Heyoung

AU - Ying, J.

AU - Zhang, C. C.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Žontar, D.

AU - Zürcher, D.

PY - 2005/8/5

Y1 - 2005/8/5

N2 - We report the first observation of the radiative hyperonic B decay B+→pΛ̄γ, using a 140fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+→pΛ̄γ)= (2.16-0.53+0.58±0.20)×10-6. We examine its MpΛ̄ distribution and observe a peak near threshold. This feature is expected by the short-distance b→sγ transition. A search for B+→pΣ̄ 0γ yields no significant signal, and we set a 90% confidence-level upper limit on the branching fraction of B(B+→pΣ̄0γ)<4. 6×10-6.

AB - We report the first observation of the radiative hyperonic B decay B+→pΛ̄γ, using a 140fb-1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+→pΛ̄γ)= (2.16-0.53+0.58±0.20)×10-6. We examine its MpΛ̄ distribution and observe a peak near threshold. This feature is expected by the short-distance b→sγ transition. A search for B+→pΣ̄ 0γ yields no significant signal, and we set a 90% confidence-level upper limit on the branching fraction of B(B+→pΣ̄0γ)<4. 6×10-6.

UR - http://www.scopus.com/inward/record.url?scp=27144467688&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.95.061802

DO - 10.1103/PhysRevLett.95.061802

M3 - Article

AN - SCOPUS:27144467688

SN - 0031-9007

VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 061802

ER -

Observation of B+→pΛ̄γ

Abstract

Access to Document

Other files and links

Fingerprint

Cite this