Measurement of the decays B -> eta lv(l) and B -> eta ' lv(l) in fully reconstructed events at Belle

  • Beleño, César
  • Dingfelder, J.
  • Urquijo, P.
  • Aihara, H.
  • Al Said, S.
  • ... Cheon, B. G.
  • 외 140명
Citations

WEB OF SCIENCE

5
Citations

SCOPUS

7

초록

We report branching fraction measurements of the decays B+ and B+ based on 711 fb-1 of data collected near the (4S) resonance with the Belle experiment at the KEKB asymmetric-energy e+e- collider. This data sample contains 772 million BB events. One of the two B mesons is fully reconstructed in a hadronic decay mode. Among the remaining ("signal-B") daughters, we search for the η meson in two decay channels, η→γγ and η→π+π-π0, and reconstruct the η′ meson in η′→ηπ+π- with subsequent decay of the η into γγ. Combining the two η modes and using an extended maximum likelihood, the B+ branching fraction is measured to be (4.2±1.1(stat.)±0.3(syst.))×10-5. For B+, we observe no significant signal and set an upper limit of 0.72×10-4 at 90% confidence level.

키워드

IDENTIFICATION
제목
Measurement of the decays B -> eta lv(l) and B -> eta ' lv(l) in fully reconstructed events at Belle
저자
Beleño, CésarDingfelder, J.Urquijo, P.Aihara, H.Al Said, S.Asner, D. M.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bakich, A. M.Bansal, V.Behera, P.Bhuyan, B.Biswal, J.Bobrov, A.Bracko, M.Browder, T. E.Cervenkov, D.Chen, A.Cheon, B. G.Chistov, R.Cho, K.Choi, S. -K.Choi, Y.Cinabro, D.Dash, N.Di Carlo, S.Dolezal, Z.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Frey, A.Fulsom, B. G.Gaur, V.Gabyshev, N.Garmash, A.Gillard, R.Goldenzweig, P.Hara, T.Hayashii, H.Hedges, M. T.Hou, W. -S.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, Y.Jeon, H. B.Jin, Y.Joffe, D.Joo, K. K.Kang, K. H.Karyan, G.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, M. J.Kim, Y. J.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Krokovny, P.Kulasiri, R.Lee, I. S.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lubej, M.Luo, T.Masuda, M.Matsuda, T.Matvienko, D.Miyabayashi, K.Miyata, H.Moon, H. K.Mori, T.Nakano, E.Nakao, M.Nanut, T.Nath, K. J.Nayak, M.Nishida, S.Ogawa, S.Okuno, S.Ono, H.Pal, B.Park, C. -S.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Ritter, M.Sakai, Y.Salehi, M.Sandilya, S.Sanuki, T.Schneider, O.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shibata, T. -A.Shiu, J. -G.Simon, F.Solovieva, E.Staric, M.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Hulse, C.Varner, G.Varvell, K. E.Vinokurova, A.Vorobyev, V.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Widmann, E.Won, E.Yamashita, Y.Ye, H.Yelton, J.Yook, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.96.091102
발행일
2017-11
유형
Article
저널명
Physical Review d
96
9
페이지
1 ~ 8