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arXiv 0710.3035hep-ph
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NNLO W+ W虚拟修正-LHC的生产

NNLO Virtual corrections to W+ W- production at the LHC

Grigorios Chachamis

摘要:

我们报告了最近计算的两个循环的虚拟QCD修正的W玻色子对生产中的夸克-反夸克湮灭通道中的限制,所有的运动学不变量是大的W玻色子的质量相比。我们的结果是精确的,直到被W玻色子质量的幂所抑制的项。红外极结构与Catani的一般形式理论对双圈QCD振幅奇异性的预言一致。

英文摘要:

We report on a recent calculation of the two-loop virtual QCD corrections to the W boson pair production in the quark-anti-quark-annihilation channel in the limit where all kinematical invariants are large compared to the mass of the W boson. Our result is exact up to terms suppressed by powers of the W boson mass. The infrared pole structure is in agreement with the prediction of Catani's general formalism for the singularities of two-loop QCD amplitudes.

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