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arXiv 1411.2633hep-ph
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顶夸克$p_T$和快度分布的NNNLO软胶子修正

NNNLO soft-gluon corrections for the top-quark $p_T$ and rapidity distributions

Nikolaos Kidonakis

摘要:

本文计算了强子碰撞中顶-反顶对产生的微分分布的次-首阶(NNNLO)软胶子修正。从软胶子重算得到了近似的NNNLO(aNNNLO)结果。理论预测的顶夸克aNNNLO横动量($p_T$)和快度分布在LHC和Tevatron能量。aNNNLO修正增强了以前的分布结果,但具有较小的理论不确定性。

英文摘要:

I present a calculation of next-to-next-to-next-to-leading-order (NNNLO) soft-gluon corrections for differential distributions in top-antitop pair production in hadronic collisions. Approximate NNNLO (aNNNLO) results are obtained from soft-gluon resummation. Theoretical predictions are shown for the top-quark aNNNLO transverse momentum ($p_T$) and rapidity distributions at LHC and Tevatron energies. The aNNNLO corrections enhance previous results for the distributions but have smaller theoretical uncertainties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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