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  • Search for hadronic decays of a light Higgs boson in the radiative decay Upsilon --> gamma A0
    Tisserand, V; Eigen, G; Stugu, B; Hearty, C; So, R Y; Buzykaev, A R; Golubev, V B; Kravchenko, E A; Serednyakov, S I; K Yu Todyshev; Lankford, A J; Long, O; Richman, J D; Lockman, W S; Martinez, A J; Schalk, T; Doll, D A; Echenard, B; Hitlin, D G; Sokoloff, M D; Smith, J G; Kobel, M J; Schwierz, R; Cibinetto, G; Munerato, M; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Nicolaci, M; Patteri, P; Piccolo, M; Guido, E; Passaggio, S; Prasad, V; Lee, C L; Uwer, U; Lueck, T; Tibbetts, M; Chen, C; Prell, S; Rubin, A E; Guo, Z J; Davier, M; F Le Diberder; Coleman, J P; Gabathuler, E; Bevan, A J; Sacco, R; Cowan, G; Davis, C L; Fritsch, M; Prencipe, E; Alwyn, K E; Behn, E; Simi, G; Cowan, R; Lindemann, D; Schram, M; Lombardo, V; Stracka, S; Sonnek, P; Summers, D J; Taras, P; De Nardo, G; Monorchio, D; Onorato, G; Sciacca, C; Wang, W F; Kass, R; Sinev, N B; Simonetto, F; Bomben, M; Calderini, G; Ocariz, J; Sitt, S; Batignani, G; Paoloni, E; Perez, A; Walsh, J J; D Lopes Pegna; C Lu; L Li Gioi; Schröder, H; Emery, S; Yeche, Ch; Nelson, S; Salnikov, A A; Snyder, A; Young, C C; Sekula, S J; Bellis, M; Ernst, J A; Spanier, S M; Izen, J M; Ahmed, H; Nugent, I M; Tasneem, N; Band, H R; Dasu, S

    arXiv.org, 08/2011
    Paper, Journal Article

    We search for hadronic decays of a light Higgs boson (A0) produced in radiative decays of an Upsilon(2S) or Upsilon(3S) meson, Upsilon --> gamma A0. The data have been recorded by the BABAR experiment at the Upsilon(3S) and Upsilon(2S) center of mass energies, and include (121.3 \pm 1.2) x 10^6 Upsilon(3S) and (98.3 \pm 0.9) x 10^6 Upsilon(2S) mesons. No significant signal is observed. We set 90% confidence level upper limits on the product branching fractions B(Upsilon(nS)-->gamma A0) x B(A0-->hadrons) (n=2 or 3) that range from 1 x 10^{-6} for an A0 mass of 0.3 GeV/c^2 to 8 x 10^{-5} at 7 GeV/c^2.

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