0000000000609953

AUTHOR

Ruland A. M.

showing 1 related works from this author

Search for di-muon decays of a low-mass Higgs boson in radiative decays of the Gamma(1S)

2013

We search for di-muon decays of a low-mass Higgs boson (A(0)) produced in radiative Gamma(1S) decays. The Gamma(1S) sample is selected by tagging the pion pair in the Gamma(2S, 3S) -> pi(+)pi(-) Gamma(1S) transitions, using a data sample of 92.8 x 10(6) Gamma(2S) and 116.8 x 10(6) Gamma(3S) events collected by the BABAR detector. We find no evidence for A(0) production and set 90% confidence level upper limits on the product branching fraction B(Gamma(1S) -> gamma Lambda(0)) x B(Lambda(0)->mu(+)mu(-)) in the range of (0.28 - 9.7) x 10(-6) for 0.212 gamma Lambda(0), Lambda(0) -> mu(+)mu(-) to set limits on the effective coupling of the b quark to the Lambda(0).

Nuclear and High Energy PhysicsParticle physicsElectron–positron annihilationAstrophysics::High Energy Astrophysical PhenomenaQuarkonium01 natural sciencesBottom quarkHigh Energy Physics - ExperimentNuclear physicsPion0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsPhysicsMuon010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyBABAR detectorQuarkoniumHEP3. Good healthPACS: 12.60.Fr 12.60.Jv 13.20.Gd 13.35.BvBaBarHiggs bosonLeptonic decaysFísica nuclearHigh Energy Physics::ExperimentMinimal Supersymmetric Standard Model
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