Study of B+-> p Lambda gamma, p Lambda pi(0) and B-0 -> p Lambda pi(-)

  • Wang, M. -Z.
  • Lee, Y. -J.
  • Abe, K.
  • Adachi, I.
  • Aihara, H.
  • ... Cheon, Byung Gu
  • 외 131명
Citations

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36
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47

초록

We study the following charmless baryonic three-body decays of B mesons: B+-> p (Lambda) over bar gamma, B+-> p (Lambda) over bar pi(0), and B-0 -> p (Lambda) over bar pi(-). The partial branching fractions as a function of the baryon-antibaryon mass and the polar angle distributions of the proton in the baryon-antibaryon system are presented. This study includes the first observation of B+-> p (Lambda) over bar pi(0), which is measured to have a branching fraction of (3.00(-0.53)(+0.61)+/- 0.33)x10(-6). We also set upper limits on branching fractions of the two-body decays B-0 -> p (Sigma) over bar (*-), B-0 ->Delta(0)(Lambda) over bar, B+-> p (Sigma) over bar (*0), and B+->Delta(+)(Lambda) over bar at the 90% confidence level. These results are obtained from a 414 fb(-1) data sample collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

키워드

BARYON-ANTIBARYONSEARCH
제목
Study of B+-> p Lambda gamma, p Lambda pi(0) and B-0 -> p Lambda pi(-)
저자
Wang, M. -Z.Lee, Y. -J.Abe, K.Adachi, I.Aihara, H.Anipko, D.Aushev, T.Bahinipati, S.Bedny, I.Belous, K.Bizjak, I.Blyth, S.Bondar, A.Bracko, M.Browder, T. E.Chang, M. -C.Chao, Y.Chen, A.Chen, K. -F.Chen, W. T.Cheon, Byung GuChistov, R.Cho, I. -S.Choi, Y.Choi, Y. K.Cole, S.Dalseno, J.Dash, M.Eidelman, S.Fratina, S.Gokhroo, G.Ha, H.Haba, J.Hayasaka, K.Hazumi, M.Heffernan, D.Hokuue, T.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Ikado, K.Imoto, A.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Joshi, N.Kah, D. H.Kang, J. H.Katayama, N.Kawasaki, T.Kichimi, H.Kim, Y. J.Kinoshita, K.Krizan, P.Krokovny, P.Kumar, R.Kuo, C. C.Kwon, Y. -J.Lee, J. S.Lee, M. J.Lee, S. E.Lesiak, T.Lin, S. -W.Liventsev, D.Mandl, F.Matsumoto, T.McOnie, S.Medvedeva, T.Mitaroff, W.Miyake, H.Miyata, H.Miyazaki, Y.Mizuk, R.Moloney, G. R.Nakao, M.Nishida, S.Nitoh, O.Ohshima, T.Okuno, S.Onuki, Y.Ostrowicz, W.Ozaki, H.Pakhlov, P.Pakhlova, G.Palka, H.Park, C. W.Park, H.Park, K. S.Pestotnik, R.Piilonen, L. E.Sakai, Y.Satoyama, N.Schneider, O.Schuemann, J.Schwartz, A. J.Senyo, K.Shapkin, M.Shibuya, H.Shwartz, B.Sokolov, A.Somov, A.Soni, N.Staric, M.Stoeck, H.Sumiyoshi, T.Takasaki, F.Tamai, K.Tanaka, M.Teramoto, Y.Tian, X. C.Tsukamoto, T.Uehara, S.Ueno, K.Uglov, T.Unno, Y.Uno, S.Usov, Y.Varner, G.Varvell, K. E.Vervink, K.Villa, S.Vinokurova, A.Wang, C. H.Wang, P.Watanabe, Y.Won, E.Xie, Q. L.Yamaguchi, A.Yamashita, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.76.052004
발행일
2007-09
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
76
5
페이지
1 ~ 8

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