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 0.3GeV/c2 to 8×10-5 at 7GeV/c2.

Lees, J., Poireau, V., Tisserand, V., Tico, J., Grauges, E., Martinelli, M., et al. (2011). Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Gamma -> gamma A(0). PHYSICAL REVIEW LETTERS, 107(22) [10.1103/PhysRevLett.107.221803].

Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Gamma -> gamma A(0)

CARPINELLI, Massimo
Membro del Collaboration Group
;
2011

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 0.3GeV/c2 to 8×10-5 at 7GeV/c2.
Articolo in rivista - Articolo scientifico
BABAR experiment
English
2011
Carpinelli Massimo (BABAR Collaboration)
Lees, J., Poireau, V., Tisserand, V., Tico, J., Grauges, E., Martinelli, M., et al. (2011). Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Gamma -> gamma A(0). PHYSICAL REVIEW LETTERS, 107(22) [10.1103/PhysRevLett.107.221803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389276
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