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Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Upsilon ->gamma A(0)

Abstract:

We search for evidence of a light scalar boson in the radiative decays of the Υ(2S) and Υ(3S) resonances: Υ(2S,3S)→γA0, A0→μ+μ-. Such a particle appears in extensions of the standard model, where a light CP-odd Higgs boson naturally couples strongly to b quarks. We find no evidence for such processes in the mass range 0.212≤mA0≤9.3GeV in the samples of 99×106 Υ(2S) and 122×106 Υ(3S) decays collected by the BABAR detector at the SLAC PEP-II B factory and set stringent upper limits on the effec...

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Publication status:
Published

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Authors


Karyotakis, Y More by this author
Poireau, V More by this author
Prencipe, E More by this author
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Journal:
PHYSICAL REVIEW LETTERS
Volume:
103
Issue:
8
Publication date:
2009-08-21
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:e6f0e3d1-40bd-495b-8856-005681035075
Source identifiers:
211368
Local pid:
pubs:211368
Language:
English

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