Threshold Effects on Heavy Quark Production in γγ Interactions

  title={Threshold Effects on Heavy Quark Production in γγ Interactions},
  author={Oscar Jos{\'e} Pinto {\'E}boli and Mar{\'i}a J. Gonz{\'a}lez-Garc{\'i}a and Francis Halzen and S{\'e}rgio Ferraz Novaes},
The exchange of gluons between heavy quarks produced in e + e − interactions results in an enhancement of their production near threshold. We study QCD threshold effects in γγ collisions. The results are relevant to heavy quark production by beam-strahlung and laser back-scattering in future linear collider experiments. Detailed predictions for top, bottom and charm production are presented. 

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