Search for a low-mass Higgs boson ($A^0$) at BABAR
Arafat Gabareen Mokhtar

TL;DR
This paper reports on three searches for a light Higgs boson ($A^0$) in radiative Upsilon decays using BABAR data, finding no evidence but setting upper limits on branching fractions and couplings.
Contribution
First comprehensive search for a low-mass $A^0$ Higgs in multiple decay channels at BABAR, providing new upper limits and constraining models beyond the Standard Model.
Findings
No evidence for $A^0$ Higgs was found.
Set upper limits on branching fractions at 90% confidence level.
Provided constraints on $ au_b$ and $ au_ au$ decay modes.
Abstract
The BABAR Collaboration has performed three searches for a light Higgs boson, , in radiative Upsilon () decays: , ; , (); and , invisible. Such a Higgs boson () appears in the Next-to-Minimal Supersymmetric extensions of the Standard Model, where a light CP-odd Higgs boson couples strongly to -quarks. The searches are based on data samples that consist of and decays, collected by the BABAR detector at the SLAC National Accelerator Laboratory. The searches reveal no evidence for an , and product of branching fractions upper limits, at 90% C.L., of , , and were obtained for these searches,…
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics
