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Search for hadronic decays of a light Higgs boson in the radiative decay Υ→γA0 |
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| Authors: | Lees J P Poireau V Tisserand V Garra Tico J Grauges E Martinelli M Milanes D A Palano A Pappagallo M Eigen G Stugu B Brown D N Kerth L T Kolomensky Yu G Lynch G Koch H Schroeder T Asgeirsson D J Hearty C Mattison T S McKenna J A So R Y Khan A Blinov V E Buzykaev A R Druzhinin V P Golubev V B Kravchenko E A Onuchin A P Serednyakov S I Skovpen Yu I Solodov E P Todyshev K Yu Yushkov A N Bondioli M Kirkby D Lankford A J Mandelkern M Stoker D P Atmacan H Gary J W Liu F Long O Vitug G M Campagnari C Hong T M Kovalskyi D Richman J D West C A Eisner A M Kroseberg J Lockman W S Martinez A J Schalk T |
| Institution: | Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3,F-74941 Annecy-Le-Vieux, France. |
| Abstract: | We search for hadronic decays of a light Higgs boson (A(0)) produced in radiative decays of an Υ(2S) or Υ(3S) meson, Υ→γA(0). The data have been recorded by the BABAR experiment at the Υ(3S) and Υ(2S) center-of-mass energies and include (121.3±1.2)×10(6) Υ(3S) and (98.3±0.9)×10(6) Υ(2S) mesons. No significant signal is observed. We set 90% confidence level upper limits on the product branching fractions B(Υ(nS)→γA(0))B(A(0)→hadrons) (n=2 or 3) that range from 1×10(-6) for an A(0) mass of 0.3 GeV/c(2) to 8×10(-5) at 7 GeV/c(2). |
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