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arXiv · 0908.0105

Search for a Light Higgs Boson at BaBar

Swagato Banerjee
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Abstract

We search for evidence of a light Higgs boson (A0) in the radiative decays of the narrow Upsilon(3S) resonance: Upsilon(3S) -> gamma A0, where A0 -> invisible or A0 -> mu+mu-. Such an object 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 a sample of 122 million Upsilon(3S) decays collected by the BaBar collaboration at the PEP II B-factory, and set 90% C.L. upper limits on the product of the corresponding branching fractions. We also set a limit on the di-muon branching fraction of the recently discovered eta_b meson.

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Swagato Banerjee. 2009-08-02. Search for a Light Higgs Boson at BaBar. https://doi.org/10.1393/ncc%2Fi2010-10542-0

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