Título:
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Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Υ→γA0
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Autor/a:
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Garra Ticó, Jordi; Graugés Pous, Eugeni; BABAR Collaboration
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Otros autores:
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Universitat de Barcelona |
Abstract:
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We search for hadronic decays of a light Higgs boson ( A 0 ) produced in radiative decays of an Υ ( 2 S ) or Υ ( 3 S ) meson, Υ → γ A 0 . The data have been recorded by the BABAR experiment at the Υ ( 3 S ) and Υ ( 2 S ) center-of-mass energies and include ( 121.3 ± 1.2 ) × 10 6 Υ ( 3 S ) and ( 98.3 ± 0.9 ) × 10 6 Υ ( 2 S ) mesons. No significant signal is observed. We set 90 % confidence level upper limits on the product branching fractions B ( Υ ( n S ) → γ A 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 . |
Materia(s):
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-Física de partícules -Experiments -Particle physics -Experiments |
Derechos:
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(c) American Physical Society, 2011
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Physical Society
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