Low mass New Physics search for a CP-odd Higgs boson $A^0$ deacying to $s\bar s$ or gluon gluon at BaBar

Abstract

We report on the search for the decay $Υ(1S) \to γA^0$, $A^0 \to gg$ or $s\bar s$, where $A^0$ is the pseudoscalar light Higgs boson predicted by the next-to-minimal supersymmetric standard model. A sample of $\sim 18 \times 10^6$ $Υ(1S)$ resonances, produced in the BaBar experiment via $e^+e^- \to Υ(2S) \to π^+π^-Υ(1S)$, is used for this search. No significant signal has been found, and upper limits at the $90\%$ of confidence level are set on the product branching fraction of the process.

Proceedings of Rencontres de Moriond 2014, Electroweak session. 4 pages, 2 figures