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تسجيل مستخدم جديدNext-to-next-to-leading order ${cal O}(alpha_s^4)$ results for heavy quark pair production in quark--antiquark collisions: The one-loop squared contributions
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We calculate the next-to-next-to-leading order ${cal O}(alpha_s^4)$ one-loop squared corrections to the production of heavy quark pairs in quark-antiquark annihilations. These are part of the next-to-next-to-leading order ${cal O}(alpha_s^4)$ radiative QCD corrections to this process. Our results, with the full mass dependence retained, are presented in a closed and very compact form, in the dimensional regularization scheme. We have found very intriguing factorization properties for the finite part of the amplitudes.
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