Search for B̄0→Λc+Λ̄c- decay at Belle

Y. Uchida; H. Ozaki; H. Kichimi; I. Adachi; H. Aihara; K. Arinstein; T. Aushev; A. M. Bakich; V. Balagura; E. Barberio; A. Bay; K. Belous; V. Bhardwaj; U. Bitenc; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; M. C. Chang; Y. Chao; A. Chen; W. T. Chen; B. G. Cheon; R. Chistov; I. S. Cho; Y. Choi; J. Dalseno; M. Dash; A. Drutskoy; S. Eidelman; N. Gabyshev; B. Golob; H. Ha; J. Haba; K. Hayasaka; M. Hazumi; D. Heffernan; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; K. Ikado; K. Inami; A. Ishikawa; R. Itoh; M. Iwabuchi; M. Iwasaki; Y. Iwasaki; D. H. Kah; H. Kaji; J. H. Kang; N. Katayama; H. Kawai; T. Kawasaki; Y. J. Kim; K. Kinoshita; S. Korpar; P. Križan; P. Krokovny; C. C. Kuo; A. Kuzmin; Y. J. Kwon; J. S. Lee; M. J. Lee; S. E. Lee; T. Lesiak; S. W. Lin; D. Liventsev; F. Mandl; S. McOnie; T. Medvedeva; W. Mitaroff; H. Miyake; H. Miyata; Y. Miyazaki; R. Mizuk; G. R. Moloney; Y. Nagasaka; E. Nakano; M. Nakao; H. Nakazawa; Z. Natkaniec; S. Nishida; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; P. Pakhlov; G. Pakhlova; C. W. Park; H. Park; L. S. Peak; R. Pestotnik; L. E. Piilonen; Y. Sakai; O. Schneider; K. Senyo; M. E. Sevior; M. Shapkin; C. P. Shen; H. Shibuya; J. G. Shiu; B. Shwartz; J. B. Singh; A. Somov; S. Stanič; M. Starič; T. Sumiyoshi; S. Y. Suzuki; F. Takasaki; M. Tanaka; G. N. Taylor; Y. Teramoto; I. Tikhomirov; K. Ueno; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; G. Varner; K. Vervink; C. C. Wang; C. H. Wang; M. Z. Wang; P. Wang; Y. Watanabe; R. Wedd; E. Won; Y. Yamashita; M. Yamauchi; C. C. Zhang; Z. P. Zhang; V. Zhulanov; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevD.77.051101

Search for B̄0→Λc+Λ̄c- decay at Belle

Y. Uchida
, H. Ozaki
, H. Kichimi
, I. Adachi
, H. Aihara
, K. Arinstein
, T. Aushev
, A. M. Bakich
, V. Balagura
, E. Barberio
, A. Bay
, K. Belous
, V. Bhardwaj
, U. Bitenc
, A. Bondar
, A. Bozek
, M. Bračko
, T. E. Browder
, M. C. Chang
, Y. Chao

A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Ikado, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, S. W. Lin, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. Vervink, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, V. Zhulanov, A. Zupanc, O. Zyukova

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

8 Scopus citations

Abstract

We search for the doubly charmed baryonic decay B̄0→Λ c+Λ̄c-, in a data sample of 520×106 BB̄ events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B(B̄0→Λc+Λ̄c-)<6.2×10-5 at 90% confidence level. The result is significantly below a naive extrapolation from B(B-→Ξc0Λ̄c-) assuming a simple Cabibbo-suppression factor of |Vcd/Vcs|2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.

Original language	English
Article number	051101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	77
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.77.051101
State	Published - 6 Mar 2008
Externally published	Yes

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10.1103/PhysRevD.77.051101

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Uchida, Y., Ozaki, H., Kichimi, H., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bay, A., Belous, K., Bhardwaj, V., Bitenc, U., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., ... Zyukova, O. (2008). Search for B̄0→Λc+Λ̄c- decay at Belle. Physical Review D - Particles, Fields, Gravitation and Cosmology, 77(5), Article 051101. https://doi.org/10.1103/PhysRevD.77.051101

@article{dd707292b4c24161a7e5a3d8f3d4e7d1,

title = "Search for {\=B}0→Λc+{\=Λ}c- decay at Belle",

abstract = "We search for the doubly charmed baryonic decay {\=B}0→Λ c+{\=Λ}c-, in a data sample of 520×106 B{\=B} events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B({\=B}0→Λc+{\=Λ}c-)<6.2×10-5 at 90\% confidence level. The result is significantly below a naive extrapolation from B(B-→Ξc0{\=Λ}c-) assuming a simple Cabibbo-suppression factor of |Vcd/Vcs|2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.",

author = "Y. Uchida and H. Ozaki and H. Kichimi and I. Adachi and H. Aihara and K. Arinstein and T. Aushev and Bakich, \{A. M.\} and V. Balagura and E. Barberio and A. Bay and K. Belous and V. Bhardwaj and U. Bitenc and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and Chang, \{M. C.\} and Y. Chao and A. Chen and Chen, \{W. T.\} and Cheon, \{B. G.\} and R. Chistov and Cho, \{I. S.\} and Y. Choi and J. Dalseno and M. Dash and A. Drutskoy and S. Eidelman and N. Gabyshev and B. Golob and H. Ha and J. Haba and K. Hayasaka and M. Hazumi and D. Heffernan and Y. Hoshi and Hou, \{W. S.\} and Hsiung, \{Y. B.\} and Hyun, \{H. J.\} and K. Ikado and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and M. Iwasaki and Y. Iwasaki and Kah, \{D. H.\} and H. Kaji and Kang, \{J. H.\} and N. Katayama and H. Kawai and T. Kawasaki and Kim, \{Y. J.\} and K. Kinoshita and S. Korpar and P. Kri{\v z}an and P. Krokovny and Kuo, \{C. C.\} and A. Kuzmin and Kwon, \{Y. J.\} and Lee, \{J. S.\} and Lee, \{M. J.\} and Lee, \{S. E.\} and T. Lesiak and Lin, \{S. W.\} and D. Liventsev and F. Mandl and S. McOnie and T. Medvedeva and W. Mitaroff and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, \{G. R.\} and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Nishida and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and S. Okuno and Olsen, \{S. L.\} and P. Pakhlov and G. Pakhlova and Park, \{C. W.\} and H. Park and Peak, \{L. S.\} and R. Pestotnik and Piilonen, \{L. E.\} and Y. Sakai and O. Schneider and K. Senyo and Sevior, \{M. E.\} and M. Shapkin and Shen, \{C. P.\} and H. Shibuya and Shiu, \{J. G.\} and B. Shwartz and Singh, \{J. B.\} and A. Somov and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and Suzuki, \{S. Y.\} and F. Takasaki and M. Tanaka and Taylor, \{G. N.\} and Y. Teramoto and I. Tikhomirov and K. Ueno and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and G. Varner and K. Vervink and Wang, \{C. C.\} and Wang, \{C. H.\} and Wang, \{M. Z.\} and P. Wang and Y. Watanabe and R. Wedd and E. Won and Y. Yamashita and M. Yamauchi and Zhang, \{C. C.\} and Zhang, \{Z. P.\} and V. Zhulanov and A. Zupanc and O. Zyukova",

year = "2008",

month = mar,

day = "6",

doi = "10.1103/PhysRevD.77.051101",

language = "English",

volume = "77",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "5",

}

Uchida, Y, Ozaki, H, Kichimi, H, Adachi, I, Aihara, H, Arinstein, K, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Belous, K, Bhardwaj, V, Bitenc, U, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chao, Y, Chen, A, Chen, WT, Cheon, BG, Chistov, R, Cho, IS, Choi, Y, Dalseno, J, Dash, M, Drutskoy, A, Eidelman, S, Gabyshev, N, Golob, B, Ha, H, Haba, J, Hayasaka, K, Hazumi, M, Heffernan, D, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Ikado, K, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, M, Iwasaki, Y, Kah, DH, Kaji, H, Kang, JH, Katayama, N, Kawai, H, Kawasaki, T, Kim, YJ, Kinoshita, K, Korpar, S, Križan, P, Krokovny, P, Kuo, CC, Kuzmin, A, Kwon, YJ, Lee, JS, Lee, MJ, Lee, SE, Lesiak, T, Lin, SW, Liventsev, D, Mandl, F, McOnie, S, Medvedeva, T, Mitaroff, W, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Pakhlov, P, Pakhlova, G, Park, CW, Park, H, Peak, LS, Pestotnik, R, Piilonen, LE, Sakai, Y, Schneider, O, Senyo, K, Sevior, ME, Shapkin, M, Shen, CP, Shibuya, H, Shiu, JG, Shwartz, B, Singh, JB, Somov, A, Stanič, S, Starič, M, Sumiyoshi, T, Suzuki, SY, Takasaki, F, Tanaka, M, Taylor, GN, Teramoto, Y, Tikhomirov, I, Ueno, K, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Varner, G, Vervink, K, Wang, CC, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Wedd, R, Won, E, Yamashita, Y, Yamauchi, M, Zhang, CC, Zhang, ZP, Zhulanov, V, Zupanc, A & Zyukova, O 2008, 'Search for B̄0→Λc+Λ̄c- decay at Belle', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 77, no. 5, 051101. https://doi.org/10.1103/PhysRevD.77.051101

TY - JOUR

T1 - Search for B̄0→Λc+Λ̄c- decay at Belle

AU - Uchida, Y.

AU - Ozaki, H.

AU - Kichimi, H.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Ikado, K.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kah, D. H.

AU - Kaji, H.

AU - Kang, J. H.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lee, J. S.

AU - Lee, M. J.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Mandl, F.

AU - McOnie, S.

AU - Medvedeva, T.

AU - Mitaroff, W.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Peak, L. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Schneider, O.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibuya, H.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Singh, J. B.

AU - Somov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Suzuki, S. Y.

AU - Takasaki, F.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Ueno, K.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Vervink, K.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, E.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhulanov, V.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2008/3/6

Y1 - 2008/3/6

N2 - We search for the doubly charmed baryonic decay B̄0→Λ c+Λ̄c-, in a data sample of 520×106 BB̄ events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B(B̄0→Λc+Λ̄c-)<6.2×10-5 at 90% confidence level. The result is significantly below a naive extrapolation from B(B-→Ξc0Λ̄c-) assuming a simple Cabibbo-suppression factor of |Vcd/Vcs|2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.

AB - We search for the doubly charmed baryonic decay B̄0→Λ c+Λ̄c-, in a data sample of 520×106 BB̄ events accumulated at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find no significant signal and set an upper limit of B(B̄0→Λc+Λ̄c-)<6.2×10-5 at 90% confidence level. The result is significantly below a naive extrapolation from B(B-→Ξc0Λ̄c-) assuming a simple Cabibbo-suppression factor of |Vcd/Vcs|2. The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.

UR - https://www.scopus.com/pages/publications/41149102991

U2 - 10.1103/PhysRevD.77.051101

DO - 10.1103/PhysRevD.77.051101

M3 - Article

AN - SCOPUS:41149102991

SN - 1550-7998

VL - 77

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 051101

ER -

Search for B̄0→Λc+Λ̄c- decay at Belle

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