Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays

Q. L. Xie, K. Abe, K. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, E. Barberio, M. Barbero, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder & 135 others Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, S. Fratina, N. Gabyshev, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Ikado, A. Imoto, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, Ju Hwan Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, J. H. Kim, S. M. Kim, K. Kinoshita, P. Krokovny, C. C. Kuo, Youngjoon Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, D. Liventsev, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Nagamine, Y. Nagasaka, E. Nakano, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, N. Parslow, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Satoyama, K. Sayeed, O. Schneider, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, A. Somov, N. Soni, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, M. Z. Wang, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yuan, S. L. Zang, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, T. Ziegler

Research output: Contribution to journal › Article

21 Citations (Scopus)

Abstract

We report the observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays, using a sample of 275×106 BB̄ pairs collected with the Belle detector at the Υ(4S) resonance. We observe a signal of 17.2±4.1 events with a significance of 11.1σ and obtain a branching fraction of B(B-→J/ψΛp̄)=11.6±2.8(stat)-2.3+1.8(sys)×10-6. No signal is found for either of the two decay modes, B-→J/ ψΣ0p̄ and B0→J/ψpp̄, and upper limits for the branching fractions are determined to be B(B-→J/ψΣ0p̄)<1. 1×10-5 and B(B0→J/ψpp̄)<8.3×10-7 at 90% confidence level.

Original languageEnglish
Article number051105
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume72
Issue number5
DOIs
Publication statusPublished - 2005 Sep 1

Fingerprint

decay
confidence
detectors

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Xie, Q. L. ; Abe, K. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Asano, Y. ; Aushev, T. ; Bahinipati, S. ; Bakich, A. M. ; Barberio, E. ; Barbero, M. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chao, Y. ; Chen, A. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Choi, Y. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dong, L. Y. ; Drutskoy, A. ; Eidelman, S. ; Enari, Y. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Golob, B. ; Gorišek, A. ; Haba, J. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Hsiung, Y. B. ; Iijima, T. ; Ikado, K. ; Imoto, A. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, Ju Hwan ; Kang, J. S. ; Kapusta, P. ; Kataoka, S. U. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, J. H. ; Kim, S. M. ; Kinoshita, K. ; Krokovny, P. ; Kuo, C. C. ; Kwon, Youngjoon ; Leder, G. ; Lee, S. E. ; Lesiak, T. ; Li, J. ; Liventsev, D. ; Mandl, F. ; Matsumoto, T. ; Matyja, A. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Nagamine, T. ; Nagasaka, Y. ; Nakano, E. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Olsen, S. L. ; Onuki, Y. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Palka, H. ; Park, C. W. ; Parslow, N. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Satoyama, N. ; Sayeed, K. ; Schneider, O. ; Sevior, M. E. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Somov, A. ; Soni, N. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Takasaki, F. ; Tamai, K. ; Tanaka, M. ; Teramoto, Y. ; Tian, X. C. ; Trabelsi, K. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Varner, G. ; Varvell, K. E. ; Villa, S. ; Wang, C. H. ; Wang, M. Z. ; Watanabe, Y. ; Won, E. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Ying, J. ; Yuan, Y. ; Zang, S. L. ; Zhang, C. C. ; Zhang, J. ; Zhang, L. M. ; Zhang, Z. P. ; Zhilich, V. ; Ziegler, T. / Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2005 ; Vol. 72, No. 5.
@article{5565358fcb7441628e8d2fc56ca75629,
title = "Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays",
abstract = "We report the observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays, using a sample of 275×106 BB̄ pairs collected with the Belle detector at the Υ(4S) resonance. We observe a signal of 17.2±4.1 events with a significance of 11.1σ and obtain a branching fraction of B(B-→J/ψΛp̄)=11.6±2.8(stat)-2.3+1.8(sys)×10-6. No signal is found for either of the two decay modes, B-→J/ ψΣ0p̄ and B0→J/ψpp̄, and upper limits for the branching fractions are determined to be B(B-→J/ψΣ0p̄)<1. 1×10-5 and B(B0→J/ψpp̄)<8.3×10-7 at 90{\%} confidence level.",
author = "Xie, {Q. L.} and K. Abe and K. Abe and I. Adachi and H. Aihara and Y. Asano and T. Aushev and S. Bahinipati and Bakich, {A. M.} and E. Barberio 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 J. Brodzicka and Browder, {T. E.} and Y. Chao 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 Dong, {L. Y.} and A. Drutskoy and S. Eidelman and Y. Enari and S. Fratina and N. Gabyshev and T. Gershon and A. Go and G. Gokhroo and B. Golob and A. Gorišek and J. Haba 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 K. Ikado and A. Imoto and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {Ju Hwan} and Kang, {J. S.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {J. H.} and Kim, {S. M.} and K. Kinoshita and P. Krokovny and Kuo, {C. C.} and Youngjoon Kwon and G. Leder and Lee, {S. E.} and T. Lesiak and J. Li and D. Liventsev and F. Mandl 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. Nagamine and Y. Nagasaka and E. Nakano 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 Y. Onuki and W. Ostrowicz and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and N. Parslow and R. Pestotnik and Piilonen, {L. E.} and Y. Sakai and N. Satoyama and K. Sayeed and O. Schneider and Sevior, {M. E.} and H. Shibuya and B. Shwartz and V. Sidorov and A. Somov and N. Soni and S. Stanič and M. Starič and K. Sumisawa and T. Sumiyoshi and F. Takasaki and K. Tamai and M. Tanaka and Y. Teramoto and Tian, {X. C.} and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and G. Varner and Varvell, {K. E.} and S. Villa and Wang, {C. H.} and Wang, {M. Z.} and Y. Watanabe and E. Won and A. Yamaguchi and Y. Yamashita and M. Yamauchi and J. Ying and Y. Yuan and Zang, {S. L.} and Zhang, {C. C.} and J. Zhang and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and T. Ziegler",
year = "2005",
month = "9",
day = "1",
doi = "10.1103/PhysRevD.72.051105",
language = "English",
volume = "72",
journal = "Physical review D: Particles and fields",
issn = "1550-7998",
publisher = "American Physical Society",
number = "5",

}

Xie, QL, Abe, K, Abe, K, Adachi, I, Aihara, H, Asano, Y, Aushev, T, Bahinipati, S, Bakich, AM, Barberio, E, Barbero, M, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chao, Y, Chen, A, Chen, WT, Cheon, BG, Chistov, R, Choi, Y, Chuvikov, A, Cole, S, Dalseno, J, Danilov, M, Dash, M, Dong, LY, Drutskoy, A, Eidelman, S, Enari, Y, Fratina, S, Gabyshev, N, Gershon, T, Go, A, Gokhroo, G, Golob, B, Gorišek, A, Haba, J, Hayasaka, K, Hayashii, H, Hazumi, M, Hinz, L, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Hsiung, YB, Iijima, T, Ikado, K, Imoto, A, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kapusta, P, Kataoka, SU, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, JH, Kim, SM, Kinoshita, K, Krokovny, P, Kuo, CC, Kwon, Y, Leder, G, Lee, SE, Lesiak, T, Li, J, Liventsev, D, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Nagamine, T, Nagasaka, Y, Nakano, E, Natkaniec, Z, Nishida, S, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Ostrowicz, W, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Parslow, N, Pestotnik, R, Piilonen, LE, Sakai, Y, Satoyama, N, Sayeed, K, Schneider, O, Sevior, ME, Shibuya, H, Shwartz, B, Sidorov, V, Somov, A, Soni, N, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Takasaki, F, Tamai, K, Tanaka, M, Teramoto, Y, Tian, XC, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Varner, G, Varvell, KE, Villa, S, Wang, CH, Wang, MZ, Watanabe, Y, Won, E, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Ying, J, Yuan, Y, Zang, SL, Zhang, CC, Zhang, J, Zhang, LM, Zhang, ZP, Zhilich, V & Ziegler, T 2005, 'Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 72, no. 5, 051105. https://doi.org/10.1103/PhysRevD.72.051105

Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays. / Xie, Q. L.; Abe, K.; Abe, K.; Adachi, I.; Aihara, H.; Asano, Y.; Aushev, T.; Bahinipati, S.; Bakich, A. M.; Barberio, E.; Barbero, M.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Choi, Y.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Dong, L. Y.; Drutskoy, A.; Eidelman, S.; Enari, Y.; Fratina, S.; Gabyshev, N.; Gershon, T.; Go, A.; Gokhroo, G.; Golob, B.; Gorišek, A.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hinz, L.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Hsiung, Y. B.; Iijima, T.; Ikado, K.; Imoto, A.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, Ju Hwan; Kang, J. S.; Kapusta, P.; Kataoka, S. U.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, J. H.; Kim, S. M.; Kinoshita, K.; Krokovny, P.; Kuo, C. C.; Kwon, Youngjoon; Leder, G.; Lee, S. E.; Lesiak, T.; Li, J.; Liventsev, D.; Mandl, F.; Matsumoto, T.; Matyja, A.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Nagamine, T.; Nagasaka, Y.; Nakano, E.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ostrowicz, W.; Ozaki, H.; Pakhlov, P.; Palka, H.; Park, C. W.; Parslow, N.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Satoyama, N.; Sayeed, K.; Schneider, O.; Sevior, M. E.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Somov, A.; Soni, N.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Takasaki, F.; Tamai, K.; Tanaka, M.; Teramoto, Y.; Tian, X. C.; Trabelsi, K.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. H.; Wang, M. Z.; Watanabe, Y.; Won, E.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Ying, J.; Yuan, Y.; Zang, S. L.; Zhang, C. C.; Zhang, J.; Zhang, L. M.; Zhang, Z. P.; Zhilich, V.; Ziegler, T.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 72, No. 5, 051105, 01.09.2005.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays

AU - Xie, Q. L.

AU - Abe, K.

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Asano, Y.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Barberio, E.

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 - Brodzicka, J.

AU - Browder, T. E.

AU - Chao, Y.

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 - Dong, L. Y.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Enari, Y.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Gershon, T.

AU - Go, A.

AU - Gokhroo, G.

AU - Golob, B.

AU - Gorišek, A.

AU - Haba, J.

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 - Ikado, K.

AU - Imoto, A.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, Ju Hwan

AU - Kang, J. S.

AU - Kapusta, P.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, J. H.

AU - Kim, S. M.

AU - Kinoshita, K.

AU - Krokovny, P.

AU - Kuo, C. C.

AU - Kwon, Youngjoon

AU - Leder, G.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Li, J.

AU - Liventsev, D.

AU - Mandl, F.

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 - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

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 - Onuki, Y.

AU - Ostrowicz, W.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Parslow, N.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Satoyama, N.

AU - Sayeed, K.

AU - Schneider, O.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Somov, A.

AU - Soni, N.

AU - Stanič, S.

AU - Starič, M.

AU - Sumisawa, K.

AU - Sumiyoshi, T.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tanaka, M.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Varner, G.

AU - Varvell, K. E.

AU - Villa, S.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Won, E.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Ying, J.

AU - Yuan, Y.

AU - Zang, S. L.

AU - Zhang, C. C.

AU - Zhang, J.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Ziegler, T.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - We report the observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays, using a sample of 275×106 BB̄ pairs collected with the Belle detector at the Υ(4S) resonance. We observe a signal of 17.2±4.1 events with a significance of 11.1σ and obtain a branching fraction of B(B-→J/ψΛp̄)=11.6±2.8(stat)-2.3+1.8(sys)×10-6. No signal is found for either of the two decay modes, B-→J/ ψΣ0p̄ and B0→J/ψpp̄, and upper limits for the branching fractions are determined to be B(B-→J/ψΣ0p̄)<1. 1×10-5 and B(B0→J/ψpp̄)<8.3×10-7 at 90% confidence level.

AB - We report the observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays, using a sample of 275×106 BB̄ pairs collected with the Belle detector at the Υ(4S) resonance. We observe a signal of 17.2±4.1 events with a significance of 11.1σ and obtain a branching fraction of B(B-→J/ψΛp̄)=11.6±2.8(stat)-2.3+1.8(sys)×10-6. No signal is found for either of the two decay modes, B-→J/ ψΣ0p̄ and B0→J/ψpp̄, and upper limits for the branching fractions are determined to be B(B-→J/ψΣ0p̄)<1. 1×10-5 and B(B0→J/ψpp̄)<8.3×10-7 at 90% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=29844457653&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=29844457653&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.72.051105

DO - 10.1103/PhysRevD.72.051105

M3 - Article

VL - 72

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 5

M1 - 051105

ER -

Xie QL, Abe K, Abe K, Adachi I, Aihara H, Asano Y et al. Observation of B-→J/ψΛp̄ and searches for B-→J/ψΣ0p̄ and B0→J/ψpp̄ decays. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2005 Sep 1;72(5). 051105. https://doi.org/10.1103/PhysRevD.72.051105

Access to Document