Observation of B(+/-) --> p(-)pK(+/-)

K Abe; K Abe; R Abe; T Abe; I Adachi; Byoung Sup Ahn; H Aihara; M Akatsu; Y Asano; T Aso; V Aulchenko; T Aushev; A M Bakich; Y Ban; E Banas; S Behari; P K Behera; A Bondar; A Bozek; M Bracko; J Brodzicka; T E Browder; B C K Casey; P Chang; Y Chao; K-F Chen; B G Cheon; R Chistov; S-K Choi; Y Choi; M Danilov; L Y Dong; J Dragic; A Drutskoy; S Eidelman; V Eiges; Y Enari; C W Everton; F Fang; H Fujii; C Fukunaga; M Fukushima; N Gabyshev; A Garmash; T Gershon; K Gotow; R Guo; J Haba; H Hamasaki; F Handa; K Hara; T Hara; H Hayashii; M Hazumi; E M Heenan; I Higuchi; T Higuchi; T Hojo; T Hokuue; Y Hoshi; S R Hou; W-S Hou; H-C Huang; T Igaki; Y Igarashi; T Iijima; H Ikeda; K Inami; A Ishikawa; H Ishino; R Itoh; H Iwasaki; Y Iwasaki; P Jalocha; H K Jang; J H Kang; J S Kang; P Kapusta; N Katayama; H Kawai; H Kawai; Y Kawakami; N Kawamura; T Kawasaki; H Kichimi; D W Kim; H J Kim; H O Kim; Hyunwoo Kim; S K Kim; K Kinoshita; H Konishi; S Korpar; P Krizan; P Krokovny; S Kumar; A Kuzmin; Y-J Kwon; J S Lange; G Leder; S H Lee; A Limosani; D Liventsev; R-S Lu; J MacNaughton; G Majumder; F Mandl; T Matsuishi; S Matsumoto; Y Mikami; W Mitaroff; K Miyabayashi; Y Miyabayashi; H Miyake; H Miyata; G R Moloney; T Nagamine; Y Nagasaka; Y Nagashima; M Nakao; J W Nam; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; T Nozaki; S Ogawa; T Ohshima; T Okabe; S Okuno; S L Olsen; W Ostrowicz; H Ozaki; P Pakhlov; H Palka; C S Park; C W Park; K S Park; L S Peak; J-P Perroud; M Peters; L E Piilonen; F Ronga; N Root; K Rybicki; H Sagawa; Y Sakai; H Sakamoto; M Satapathy; A Satpathy; O Schneider; S Schrenk; C Schwanda; S Semenov; K Senyo; H Shibuya; B Schwartz; V Sidorov; J B Singh; S Stanic; A Sugi; A Sugiyama; K Sumisawa; K Suzuki; S Y Suzuki; T Takahashi; F Takasaki; M Takita; K Tamai; N Tamura; J Tanaka; G N Taylor; Y Teramoto; S Tokuda; T Tomura; S N Tovey; K Trabelsi; T Tsuboyama; T Tsukamoto; S Uehara; K Ueno; Y Unno; S Uno; K E Varvell; C C Wang; C H Wang; J G Wang; M-Z Wang; Y Watanabe; E Won; B D Yabsley; Y Yamada; M Yamaga; A Yamaguchi; H Yamamoto; Y Yamashita; M Yamauchi; S Yanaka; P Yeh; M Yokoyama; Y Yuan; J Zhang; Y Zheng; D Zontar; Belle Collaboration

doi:10.1103/PhysRevLett.88.181803

Observation of B(+/-) --> p(-)pK(+/-)

Phys Rev Lett. 2002 May 6;88(18):181803. doi: 10.1103/PhysRevLett.88.181803. Epub 2002 Apr 23.

Authors

K Abe¹, K Abe, R Abe, T Abe, I Adachi, Byoung Sup Ahn, H Aihara, M Akatsu, Y Asano, T Aso, V Aulchenko, T Aushev, A M Bakich, Y Ban, E Banas, S Behari, P K Behera, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, B C K Casey, P Chang, Y Chao, K-F Chen, B G Cheon, R Chistov, S-K Choi, Y Choi, M Danilov, L Y Dong, J Dragic, A Drutskoy, S Eidelman, V Eiges, Y Enari, C W Everton, F Fang, H Fujii, C Fukunaga, M Fukushima, N Gabyshev, A Garmash, T Gershon, K Gotow, R Guo, J Haba, H Hamasaki, F Handa, K Hara, T Hara, H Hayashii, M Hazumi, E M Heenan, I Higuchi, T Higuchi, T Hojo, T Hokuue, Y Hoshi, S R Hou, W-S Hou, H-C Huang, T Igaki, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, Y Iwasaki, P Jalocha, H K Jang, J H Kang, J S Kang, P Kapusta, N Katayama, H Kawai, H Kawai, Y Kawakami, N Kawamura, T Kawasaki, H Kichimi, D W Kim, H J Kim, H O Kim, Hyunwoo Kim, S K Kim, K Kinoshita, H Konishi, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, Y-J Kwon, J S Lange, G Leder, S H Lee, A Limosani, D Liventsev, R-S Lu, J MacNaughton, G Majumder, F Mandl, T Matsuishi, S Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, Y Miyabayashi, H Miyake, H Miyata, G R Moloney, T Nagamine, Y Nagasaka, Y Nagashima, M Nakao, J W Nam, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, C S Park, C W Park, K S Park, L S Peak, J-P Perroud, M Peters, L E Piilonen, F Ronga, N Root, K Rybicki, H Sagawa, Y Sakai, H Sakamoto, M Satapathy, A Satpathy, O Schneider, S Schrenk, C Schwanda, S Semenov, K Senyo, H Shibuya, B Schwartz, V Sidorov, J B Singh, S Stanic, A Sugi, A Sugiyama, K Sumisawa, K Suzuki, S Y Suzuki, T Takahashi, F Takasaki, M Takita, K Tamai, N Tamura, J Tanaka, G N Taylor, Y Teramoto, S Tokuda, T Tomura, S N Tovey, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, K E Varvell, C C Wang, C H Wang, J G Wang, M-Z Wang, Y Watanabe, E Won, B D Yabsley, Y Yamada, M Yamaga, A Yamaguchi, H Yamamoto, Y Yamashita, M Yamauchi, S Yanaka, P Yeh, M Yokoyama, Y Yuan, J Zhang, Y Zheng, D Zontar; Belle Collaboration

Affiliation

¹ Aomori University, Aomori, Japan.

PMID: 12005679
DOI: 10.1103/PhysRevLett.88.181803

Abstract

We report the observation of the decay mode B(+/-) --> p(-)pK(+/-)based on an analysis of 29.4 fb(-1) of data collected by the Belle detector at KEKB. This is the first example of a b-->s transition with baryons in the final state. The p(-)p mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B+/--->p(-)pK+/-) = [4.3(+1.1)(-0.9)(stat)+/-0.5(syst)]x 10(-6). We also report upper limits for the decays B(0)-->p(-)pK(S) and B(+/-)-->p(-)p pi(+/-).