Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays

N. Gabyshev; K. Abe; K. Abe; I. Adachi; H. Aihara; Y. Asano; V. Aulchenko; T. Aushev; S. Bahinipati; A. M. Bakich; V. Balagura; E. Barberio; W. Bartel; A. Bay; I. Bedny; U. Bitenc; I. Bizjak; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; A. Chen; W. T. Chen; B. G. Cheon; R. Chistov; Y. Choi; A. Chuvikov; S. Cole; J. Dalseno; M. Danilov; M. Dash; A. Drutskoy; S. Eidelman; A. Garmash; T. Gershon; G. Gokhroo; B. Golob; J. Haba; K. Hayasaka; H. Hayashii; M. Hazumi; T. Hokuue; Y. Hoshi; S. Hou; W. S. Hou; Y. B. Hsiung; K. Ikado; A. Imoto; K. Inami; R. Itoh; M. Iwasaki; Y. Iwasaki; J. H. Kang; T. Kawasaki; H. R. Khan; H. Kichimi; S. M. Kim; S. Korpar; P. Krokovny; R. Kulasiri; C. C. Kuo; A. Kuzmin; Y. J. Kwon; G. Leder; T. Lesiak; S. W. Lin; D. Liventsev; G. Majumder; T. Matsumoto; W. Mitaroff; K. Miyabayashi; H. Miyata; Y. Miyazaki; R. Mizuk; E. Nakano; M. Nakao; Z. Natkaniec; S. Nishida; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; S. L. Olsen; H. Ozaki; H. Palka; C. W. Park; K. S. Park; R. Pestotnik; L. E. Piilonen; Y. Sakai; N. Sato; N. Satoyama; T. Schietinger; O. Schneider; C. Schwanda; R. Seidl; K. Senyo; M. E. Sevior; M. Shapkin; H. Shibuya; A. Somov; N. Soni; R. Stamen; S. Stanič; M. Starič; T. Sumiyoshi; K. Tamai; N. Tamura; M. Tanaka; G. N. Taylor; 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; Y. Watanabe; E. Won; Q. L. Xie; A. Yamaguchi; M. Yamauchi; J. Ying; Z. P. Zhang

doi:10.1103/PhysRevLett.97.202003

Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays

N. Gabyshev
, K. Abe
, K. Abe
, I. Adachi
, H. Aihara
, Y. Asano
, V. Aulchenko
, T. Aushev
, S. Bahinipati
, A. M. Bakich
, V. Balagura
, E. Barberio
, W. Bartel
, A. Bay
, I. Bedny
, U. Bitenc
, I. Bizjak
, A. Bondar
, A. Bozek
, M. Bračko

T. E. Browder, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, K. Ikado, A. Imoto, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, T. Kawasaki, H. R. Khan, H. Kichimi, S. M. Kim, S. Korpar, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, T. Lesiak, S. W. Lin, D. Liventsev, G. Majumder, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, H. Ozaki, H. Palka, C. W. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Sato, N. Satoyama, T. Schietinger, O. Schneider, C. Schwanda, R. Seidl, K. Senyo, M. E. Sevior, M. Shapkin, H. Shibuya, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, 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, Y. Watanabe, E. Won, Q. L. Xie, A. Yamaguchi, M. Yamauchi, J. Ying, Z. P. Zhang

Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
High Energy Accelerator Research Organization (KEK)
Tohoku Gakuin University
University of Tokyo
University of Tsukuba
Institute for Theoretical and Experimental Physics
University of Cincinnati
University of Sydney
University of Melbourne
c/o DESY
ENAC-IIC-GEL
Department of Biochemistry and Molecular and Structural Biology
Institute for Nuclear Physics
University of Maribor
University of Hawaii
National Central University
Chonnam National University
Sungkyunkwan University
Princeton University
Virginia Polytechnic Institute and State University
Tata Institute of Fundamental Research, Mumbai
University of Ljubljana
Nagoya University
Nara Women's University
National Taiwan University
Yonsei University
Niigata University
Tokyo Institute of Technology
Institut für Hochenergiephysik
Tokyo Metropolitan University
Osaka City University
Toho University
Kanagawa University
Shinshu University
Riken BNL Research Center
Kurchatov Institute
Panjab University
University of Nova Gorica
Tsinghua University
National United University Taiwan
Korea University
Institute of High Energy Physics, Chinese Academy of Sciences
Tohoku University
University of Science and Technology of China

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

Abstract

We report the first measurements of the doubly charmed baryonic B decays B→Λc+Λc-K. The B+→Λc+Λc-K+ decay is observed with a branching fraction of (6.5-0.9+1.0±1.1±3.4) ×10-4 and a statistical significance of 15.4σ. The B0→Λc+Λc-K0 decay is observed with a branching fraction of (7.9-2.3+2.9±1.2±4.1)×10-4 and a statistical significance of 6.6σ. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Λc+→pK-π+ decay branching fraction. The analysis is based on 357fb-1 of data accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

Original language	English
Article number	202003
Journal	Physical Review Letters
Volume	97
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.97.202003
Publication status	Published - 23 Nov 2006
Externally published	Yes

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10.1103/PhysRevLett.97.202003

Cite this

Gabyshev, N., Abe, K., Abe, K., Adachi, I., Aihara, H., Asano, Y., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Balagura, V., Barberio, E., Bartel, W., Bay, A., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., ... Zhang, Z. P. (2006). Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays. Physical Review Letters, 97(20), Article 202003. https://doi.org/10.1103/PhysRevLett.97.202003

@article{6f1f15199f194e5980377512ab19a3a4,

title = "Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays",

abstract = "We report the first measurements of the doubly charmed baryonic B decays B→Λc+Λc-K. The B+→Λc+Λc-K+ decay is observed with a branching fraction of (6.5-0.9+1.0±1.1±3.4) ×10-4 and a statistical significance of 15.4σ. The B0→Λc+Λc-K0 decay is observed with a branching fraction of (7.9-2.3+2.9±1.2±4.1)×10-4 and a statistical significance of 6.6σ. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Λc+→pK-π+ decay branching fraction. The analysis is based on 357fb-1 of data accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.",

author = "N. Gabyshev and K. Abe and K. Abe and I. Adachi and H. Aihara and Y. Asano and V. Aulchenko and T. Aushev and S. Bahinipati and Bakich, \{A. M.\} and V. Balagura and E. Barberio and W. Bartel and A. Bay and I. Bedny and U. Bitenc and I. Bizjak and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and A. Chen 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 A. Drutskoy and S. Eidelman and A. Garmash and T. Gershon and G. Gokhroo and B. Golob and J. Haba and K. Hayasaka and H. Hayashii and M. Hazumi and T. Hokuue and Y. Hoshi and S. Hou and Hou, \{W. S.\} and Hsiung, \{Y. B.\} and K. Ikado and A. Imoto and K. Inami and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, \{J. H.\} and T. Kawasaki and Khan, \{H. R.\} and H. Kichimi and Kim, \{S. M.\} and S. Korpar and P. Krokovny and R. Kulasiri and Kuo, \{C. C.\} and A. Kuzmin and Kwon, \{Y. J.\} and G. Leder and T. Lesiak and Lin, \{S. W.\} and D. Liventsev and G. Majumder and T. Matsumoto and W. Mitaroff and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and E. Nakano and M. Nakao and Z. Natkaniec and S. Nishida and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, \{S. L.\} and H. Ozaki and H. Palka and Park, \{C. W.\} and Park, \{K. S.\} and R. Pestotnik and Piilonen, \{L. E.\} and Y. Sakai and N. Sato and N. Satoyama and T. Schietinger and O. Schneider and C. Schwanda and R. Seidl and K. Senyo and Sevior, \{M. E.\} and M. Shapkin and H. Shibuya and A. Somov and N. Soni and R. Stamen and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and K. Tamai and N. Tamura and M. Tanaka and Taylor, \{G. N.\} 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 Y. Watanabe and E. Won and Xie, \{Q. L.\} and A. Yamaguchi and M. Yamauchi and J. Ying and Zhang, \{Z. P.\}",

year = "2006",

month = nov,

day = "23",

doi = "10.1103/PhysRevLett.97.202003",

language = "English",

volume = "97",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "20",

}

Gabyshev, N, Abe, K, Abe, K, Adachi, I, Aihara, H, Asano, Y, Aulchenko, V, Aushev, T, Bahinipati, S, Bakich, AM, Balagura, V, Barberio, E, Bartel, W, Bay, A, Bedny, I, Bitenc, U, Bizjak, I, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chen, A, Chen, WT, Cheon, BG, Chistov, R, Choi, Y, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Drutskoy, A, Eidelman, S, Garmash, A, Gershon, T, Gokhroo, G, Golob, B, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Ikado, K, Imoto, A, Inami, K, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kawasaki, T, Khan, HR, Kichimi, H, Kim, SM, Korpar, S, Krokovny, P, Kulasiri, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lesiak, T, Lin, SW, Liventsev, D, Majumder, G, Matsumoto, T, Mitaroff, W, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ozaki, H, Palka, H, Park, CW, Park, KS, Pestotnik, R, Piilonen, LE, Sakai, Y, Sato, N, Satoyama, N, Schietinger, T, Schneider, O, Schwanda, C, Seidl, R, Senyo, K, Sevior, ME, Shapkin, M, Shibuya, H, Somov, A, Soni, N, Stamen, R, Stanič, S, Starič, M, Sumiyoshi, T, Tamai, K, Tamura, N, Tanaka, M, Taylor, GN, 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, Y, Won, E, Xie, QL, Yamaguchi, A, Yamauchi, M, Ying, J & Zhang, ZP 2006, 'Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays', Physical Review Letters, vol. 97, no. 20, 202003. https://doi.org/10.1103/PhysRevLett.97.202003

TY - JOUR

T1 - Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays

AU - Gabyshev, N.

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bartel, W.

AU - Bay, A.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chen, A.

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 - Drutskoy, A.

AU - Eidelman, S.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Ikado, K.

AU - Imoto, A.

AU - Inami, K.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, S. M.

AU - Korpar, S.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lesiak, T.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Majumder, G.

AU - Matsumoto, T.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Palka, H.

AU - Park, C. W.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Sato, N.

AU - Satoyama, N.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schwanda, C.

AU - Seidl, R.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Somov, A.

AU - Soni, N.

AU - Stamen, R.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Tamai, K.

AU - Tamura, N.

AU - Tanaka, M.

AU - Taylor, G. N.

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, Y.

AU - Won, E.

AU - Xie, Q. L.

AU - Yamaguchi, A.

AU - Yamauchi, M.

AU - Ying, J.

AU - Zhang, Z. P.

PY - 2006/11/23

Y1 - 2006/11/23

N2 - We report the first measurements of the doubly charmed baryonic B decays B→Λc+Λc-K. The B+→Λc+Λc-K+ decay is observed with a branching fraction of (6.5-0.9+1.0±1.1±3.4) ×10-4 and a statistical significance of 15.4σ. The B0→Λc+Λc-K0 decay is observed with a branching fraction of (7.9-2.3+2.9±1.2±4.1)×10-4 and a statistical significance of 6.6σ. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Λc+→pK-π+ decay branching fraction. The analysis is based on 357fb-1 of data accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

AB - We report the first measurements of the doubly charmed baryonic B decays B→Λc+Λc-K. The B+→Λc+Λc-K+ decay is observed with a branching fraction of (6.5-0.9+1.0±1.1±3.4) ×10-4 and a statistical significance of 15.4σ. The B0→Λc+Λc-K0 decay is observed with a branching fraction of (7.9-2.3+2.9±1.2±4.1)×10-4 and a statistical significance of 6.6σ. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Λc+→pK-π+ decay branching fraction. The analysis is based on 357fb-1 of data accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.

U2 - 10.1103/PhysRevLett.97.202003

DO - 10.1103/PhysRevLett.97.202003

M3 - Article

AN - SCOPUS:33751104226

SN - 0031-9007

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

M1 - 202003

ER -

Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays

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