Stop-Stop-Higgs Production at future Linear Collider(4)

In the Minimal Supersymmetric Standard Model, the cross section for the associated production of the lightest neutral Higgs boson with the lightest top squark pairs can be rather substantial at high energies. We summarize the properties of this production

1t 1h)[infb]at√Figure3:σ(γγ→t

sγγ<～0.8

√

s>～500GeVandwithveryhighluminosities

1t 1hcanleadtoseveralhundredsofevents,Ldt～500fb 1,theprocesse+e →t

sincethecrosssectionscanexceedthelevelofa1fbfornottooheavytopsquarks

t>1TeV.Inthecasewherethetopsquarkdecaysandlargetrilinearcoupling,A～

intoabquarkandareal/virtualchargino,the nalstatetopologywith4bquarks,missingenergyandadditionaljetsorleptonswillberatherspectacularandshouldbeeasytobeseenexperimentally,thankstothecleanenvironmentofthesecolliders.