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arXiv · 1405.4640

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

Elisa Guido
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Abstract

We report on the search for the decay $\Upsilon(1S) \to \gamma A^0$, $A^0 \to gg$ 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 $\sim 18 \times 10^6$ $\Upsilon(1S)$ resonances, produced in the BaBar experiment via $e^+e^- \to \Upsilon(2S) \to \pi^+\pi^-\Upsilon(1S)$, 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.

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Elisa Guido. 2014-05-19. Low mass New Physics search for a CP-odd Higgs boson $A^0$ deacying to $s\bar s$ or gluon gluon at BaBar. https://arxiv.org/abs/1405.4640

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