One-loop QCD mass effects in the production of polarized bottom and top quarks

AbstractThe analytic expressions for the production cross sections of polarized bottom and top quarks ine*e− annihilation are explicitly derived at the one-loop order of strong interactions. Chirality-violating mass effects will reduce the longitudinal spin polarization for the light quark pairs by an amount of 3%, when one properly considers the massless limit for the final quarks. Numerical estimates of longitudinal spin polarization effects in the processese*e−→b $$\bar b$$ (g) ande*e−→t $$\bar t$$ (g) are presented.