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We investigate the associated production of a scalar Higgs boson ($h^0$ or$H^0$) with $Z^0$ boson in the minimal supersymmetric extension of the standardmodel (MSSM) at the CERN Large Hadron Collider (LHC), including thecontributions from $b\bar{b}$ annihilation at the tree level and gluon fusionvia quark and squark loops. We quantitatively analyze the total cross sectionsin the mSUGRA scenario. For the production of $h^0$ associated with $Z^0$, wefind that in most of the parameter regions, the contributions from initial$b\bar{b}$ and $gg$ are at a level of one percent of the total cross sectionand therefore almost insignificant. For the production of $H^0$ associated with$Z^0$, the contributions from $b\bar{b}$ channel can be much larger than thosefrom light quark initial states. Especially for large $\tan\beta$, theincrement can reach about one order of magnitude. Thus, when considering theassociated production of $H^0$ and $Z^0$ at the LHC, the contributions from$b\bar{b}$ annihilation should be taken into account seriously.Comment: 19 pages, 8 figures, RevTeX4; one reference added, minor changes,  conclusion unchanged; Journal-ref adde

Production of scalar Higgs bosons associated with theZ0boson at the CERN LHC in the MSSM

Production of scalar Higgs bosons associated with theZ⁰boson at the CERN LHC in the MSSM