Five Jet Production with Heavy Quarks at $e^+ e^-$ Colliders

Heavy quark production in five jet events at $e^+e^-$ colliders is studied at tree level using helicity amplitudes. Total production rates for $2b3j$ and $4bj$ are given and compared with the corresponding results for massless quarks. The process $e^+e^-\rightarrow q\bar q ggγ$ which is the dominant contribution to $4jγ$ production is briefly discussed.

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