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Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Υ→γA⁰

Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
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Abstract
We search for hadronic decays of a light Higgs boson (A⁰) produced in radiative decays of an Υ(2S) or Υ(3S) meson, Υ→γA⁰. 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)×10⁶ Υ(3S) and (98.3±0.9)×10⁶ Υ(2S) mesons. No significant signal is observed. We set 90% confidence level upper limits on the product branching fractions B(Υ(nS)→γA⁰)B(A⁰→hadrons) (n=2 or 3) that range from 1×10⁻⁶ for an A⁰ mass of 0.3  GeV/c[superscript 2] to 8×10⁻⁵ at 7  GeV/c[superscript 2].
Date issued
2011-11
URI
http://hdl.handle.net/1721.1/70591
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Lees, J. et al. (BABAR Collaboration). “Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Υ→γA^{0}.” Physical Review Letters 107.22 (2011): [7 pages]. © 2011 American Physical Society.
Version: Final published version
ISSN
0031-9007

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