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4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Search for Light Higgs Bosons in \Upsilon(1S) and \Upsilon(2S) decays

6 Jul 2012, 16:45
15m
Plenary 3 (Melbourne Convention and Exhibition Centre)

Plenary 3

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches Plenary3 - The Standard Model -TR1

Speaker

Prof. Paoti Chang (National Taiwan University (TW))

Description

A light $CP$-odd Higgs boson $(A^0)$ is predicted in some extensions of the Standard Model; such a particle would be evident in decays of the $\Upsilon(nS)$ resonance. Using a data sample of 102 million $\Upsilon(1S)$ events and 158 million $\Upsilon(2S)$ events collected by the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider, we search for light Higgs boson decays $A^0 \to \tau^+ \tau^-$ and $A^0 \to \mu^+ \mu^-$ in the processes $\Upsilon(1S)\to \gamma A^0$ and $\Upsilon(2S) \to \gamma A^0$.

Primary author

Prof. Paoti Chang (National Taiwan University (TW))

Presentation materials