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http://hdl.handle.net/2445/132877
Title: | Search for Hadronic Decays of a Light Higgs Boson in the Radiative Decay Υ→γA0 |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 21-Nov-2011 |
Publisher: | American Physical Society |
Abstract: | 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 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.107.221803 |
It is part of: | Physical Review Letters, 2011, vol. 107, num. 22, p. 221803 |
URI: | http://hdl.handle.net/2445/132877 |
Related resource: | https://doi.org/10.1103/PhysRevLett.107.221803 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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