文章基本信息

标题：Heavy Flavour Production in Deep-Inelastic Scattering - Two-Loop Massive Operator Matrix Elements and Beyond
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作者：J. Bluemlein
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2007
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We calculate the O(e )–term of the two–loop massive operator matrix elements for twist 2– operators, which contribute to the heavy flavourWilson coefficients in unpolarized deep–inelastic scattering in the asymptotic limit Q2 ≫m2. Our calculation was performed in Mellin space using Mellin–Barnes integrals and generalized hypergeometric functions. The O(e )–term contributes in the renormalization at 3–loop order.