Detection of the Minimal Supersymmetric Model Higgs Boson $H^0$ in its $h^0{h}^0\to 4b$ and $A^0{A}^0\to 4b$ Decay Channels

Abstract

We demonstrate that detection of the heavier minimal supersymmetric model CP-even Higgs boson $H^0$ will be possible at the LHC via its $H^0\to h^0{h}^0\to 4b$ and/or $H^0\to A^0{A}^0\to 4b$ decay channels for significant portions of the $(m_{A^0},\tan \beta )$ model parameter space. At low $m_{A^0}$ ($\text{lsim}60\text{gev}$), {\it both} the $H^0\to A^0{A}^0\to 4b$ and $H^0\to h^0{h}^0\to 4b$ modes yield a viable signal for most $\tan \beta$ values; viability for the $h^0{h}^0$ channel extends up to $\text{mhh}\sim 2\text{mt}$ when the model parameter $\tan \beta$ is not large. At the Tevatron, the $h^0{h}^0$ and $A^0{A}^0$ channels are both potentially viable at low $m_{A^0}$ for sufficiently good $b$-tagging efficiency and purity.

Comments: 12 pages, full uuencoded postscript file has been submitted, full postscript file also available via anonymous ftp at ftp://ucdhep.ucdavis.edu/gunion/hlhl.ps