Next-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
| Autor: | Körner, J. G., Merebashvili, Z., Rogal, M. |
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| Rok vydání: | 2008 |
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| Zdroj: | Phys.Rev.D77:094011,2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.77.094011 |
| Popis: | 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. Comment: 12 pages, 2 figures, electronic results file, abbreviation NNLO in Title and Abstract expanded, Summary expanded, reference updated, version to appear in Phys.Rev.D |
| Databáze: | arXiv |
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