Jul 20 – 27, 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Search for a CP-odd light Higgs in $\Upsilon(1S)$ radiative decays at Belle

Jul 22, 2011, 5:00 PM
15m
Dauphine (Alpes Congrès - Alpexpo)

Dauphine

Alpes Congrès - Alpexpo

Parallel session talk Higgs and New Physics

Speaker

Jamal Rorie

Description

We search for a CP-odd light Higgs among 102 M $\Upsilon(1S)$ events recorded with the Belle detector at KEKB. Our signal mode is $\Upsilon(1S)\to\gamma A_0;A_0\to \tau^+\tau^-$, where the $\tau$ is detected via its leptonic decay modes. We determine the upper limits on the production rates for a CP-odd light Higgs with a mass between the $\tau^+\tau^-$ threshold and 9.4 GeV/$c^2$. This result puts stringent constraints on theoretical models of low mass NMSSM Higgs bosons.

Primary author

Presentation materials