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 & 110 others 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, Eunil Won, Q. L. Xie, A. Yamaguchi, M. Yamauchi, J. Ying, Z. P. Zhang

Research output: Contribution to journalArticle

17 Citations (Scopus)

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 languageEnglish
Article number202003
JournalPhysical Review Letters
Volume97
Issue number20
DOIs
Publication statusPublished - 2006 Nov 23

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decay
systematic errors
detectors
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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Gabyshev, N., Abe, K., Abe, K., Adachi, I., Aihara, H., Asano, Y., ... Zhang, Z. P. (2006). Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays. Physical Review Letters, 97(20), [202003]. https://doi.org/10.1103/PhysRevLett.97.202003

Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays. / 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.; Bračko, M.; Browder, T. E.; Chen, A.; Chen, W. T.; Cheon, B. G.; 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, W. S.; Hsiung, Y. B.; Ikado, K.; Imoto, A.; Inami, K.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J. H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, S. M.; Korpar, S.; Krokovny, P.; Kulasiri, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Leder, G.; Lesiak, T.; Lin, S. W.; 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, S. L.; Ozaki, H.; Palka, H.; Park, C. W.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Sato, N.; Satoyama, N.; Schietinger, T.; Schneider, O.; Schwanda, C.; Seidl, R.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Somov, A.; Soni, N.; Stamen, R.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tamai, K.; Tamura, N.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. C.; Wang, C. H.; Watanabe, Y.; Won, Eunil; Xie, Q. L.; Yamaguchi, A.; Yamauchi, M.; Ying, J.; Zhang, Z. P.

In: Physical Review Letters, Vol. 97, No. 20, 202003, 23.11.2006.

Research output: Contribution to journalArticle

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
Gabyshev N, Abe K, Abe K, Adachi I, Aihara H, Asano Y et al. Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays. Physical Review Letters. 2006 Nov 23;97(20). 202003. https://doi.org/10.1103/PhysRevLett.97.202003
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. ; Bračko, M. ; Browder, T. E. ; Chen, A. ; Chen, W. T. ; Cheon, B. G. ; 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, W. S. ; Hsiung, Y. B. ; Ikado, K. ; Imoto, A. ; Inami, K. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J. H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, S. M. ; Korpar, S. ; Krokovny, P. ; Kulasiri, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Leder, G. ; Lesiak, T. ; Lin, S. W. ; 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, S. L. ; Ozaki, H. ; Palka, H. ; Park, C. W. ; Park, K. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Sato, N. ; Satoyama, N. ; Schietinger, T. ; Schneider, O. ; Schwanda, C. ; Seidl, R. ; Senyo, K. ; Sevior, M. E. ; Shapkin, M. ; Shibuya, H. ; Somov, A. ; Soni, N. ; Stamen, R. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tian, X. C. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Uno, S. ; Urquijo, P. ; Varner, G. ; Varvell, K. E. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Watanabe, Y. ; Won, Eunil ; Xie, Q. L. ; Yamaguchi, A. ; Yamauchi, M. ; Ying, J. ; Zhang, Z. P. / Observation of B+→Λc+Λc-K+ and B0→Λ c+Λc-K0 Decays. In: Physical Review Letters. 2006 ; Vol. 97, No. 20.
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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. Bračko 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. Stanič and M. Starič 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 Eunil Won and Xie, {Q. L.} and A. Yamaguchi and M. Yamauchi and J. Ying and Zhang, {Z. P.}",
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month = "11",
day = "23",
doi = "10.1103/PhysRevLett.97.202003",
language = "English",
volume = "97",
journal = "Physical Review Letters",
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TY - JOUR

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

AU - Gabyshev, N.

AU - Abe, K.

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, Eunil

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.

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UR - http://www.scopus.com/inward/citedby.url?scp=33751104226&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.97.202003

DO - 10.1103/PhysRevLett.97.202003

M3 - Article

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 20

M1 - 202003

ER -