文章基本信息

标题：The top-pair total cross section at NNLL order
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作者：M. Beneke ; P. Falgari ; S. Klein 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2011
卷号：2011
期号：RADCOR2011
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present predictions for the total t ¯t production cross section st ¯t at the Tevatron and LHC, which include the resummation of soft logarithms and Coulomb singularities through next-tonext- to-leading logarithmic order, and t ¯t bound-state contributions. Resummation effects amount to about 8% of the next-to-leading order result at Tevatron and about 3% at LHC with 7 TeV centre-of-mass energy. They lead to a significant reduction of the theoretical uncertainty. With mt = 173:3GeV, we find sTevatron t ¯t = 7:22+0:31+0:71 􀀀0:47􀀀0:55 pb sLHC t ¯t = 162:6+7:4+15:4 􀀀7:5􀀀14:7 pb; in good agreement with the latest experimental measurements.