Evidence for the decay B-0 -> p(p)over-bar pi(0)

  • Pal, B.
  • Adachi, I.
  • Adamczyk, K.
  • Aihara, H.
  • Asner, D. M.
  • ... Won, E.
  • 외 169명
Citations

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초록

We report a search for the charmless baryonic decay B-0 -> p (p) over bar pi(0) with a data sample corresponding to an integrated luminosity of 711 fb(-1) containing (772 +/- 10) x 10(6) B (B) over bar pairs. The data were collected by the Belle experiment running on the Upsilon(4S) resonance at the KEKB e(+) e(-) collider. We measure a branching fraction B(B-0 -> p (p) over bar pi(0)) = (5.0 +/- 1.8 +/- 0.6) x 10(-7), where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B-0 -> Delta(+)(p) over bar and B-0 ->(Delta) over bar (-) p, and set an upper limit on the branching fraction, B(B-0 -> Delta(+)(p) over bar ) + B(B-0 ->(Delta) over bar (-) p) < 1.6 x 10(-6) at 90% confidence level.

키워드

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제목
Evidence for the decay B-0 -> p(p)over-bar pi(0)
저자
Pal, B.Adachi, I.Adamczyk, K.Aihara, H.Asner, D. M.Atmacan, H.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bansal, V.Behera, P.Beleno, C.Berger, M.Bhardwaj, V.Bhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Choi, S. -K.Choi, Y.Cinabro, D.Cunliffe, S.Di Carlo, S.Dolezal, Z.Dong, T. V.Dossett, D.Eidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Guan, Y.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.Hou, W. -S.Hsu, C. -L.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jia, S.Jin, Y.Joffe, D.Joo, K. K.Kaliyar, A. B.Karyan, G.Kichimi, H.Kiesling, C.Kim, C. H.Kim, D. Y.Kim, K. T.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kulasiri, R.Kwon, Y. -J.Lee, J. Y.Lee, S. C.Li, L. K.Li, Y. B.Gioi, L. LiLibby, J.Liventsev, D.Lu, P. -C.Luo, T.MacNaughton, J.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Nakao, M.Nath, K. J.Nayak, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Onuki, Y.Pakhlov, P.Pakhlova, G.Pardi, S.Park, S. -H.Patra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Popov, V.Prencipe, E.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schueler, J.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Sevior, M. E.Shen, C. P.Shiu, J. -G.Simon, F.Sokolov, A.Solovieva, E.Staric, M.Stottler, Z. S.Strube, J. F.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Uchida, M.Uglov, T.Uno, S.Urquijo, P.Van Tonder, R.Varner, G.Vinokurova, A.Wang, B.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, M.Watanuki, S.Won, E.Yang, S. B.Ye, H.Yelton, J.Yusa, Y.Zhang, J.Zhang, Z. P.Zhilich, V.Zhukova, V.
DOI
10.1103/PhysRevD.99.091104
발행일
2019-05-28
유형
Article
저널명
Physical Review D
99
9