arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1604.02191hep-phhep-ex
收藏

在NNLL + NNLO上计算Higgs横动量的新方法

A new approach to the Higgs transverse-momentum resummation at NNLL+NNLO

Pier Francesco Monni, Emanuele Re, Paolo Torrielli

摘要:

本文提出了一种新的方法来重新计算强子碰撞中高质量色单态系统的横动量分布。该方法在动量空间中进行,并且在小的横向动量下没有运动学奇异性。我们推导出了一个精确到次-次-领先对数水平的公式,并给出了LHC胶子聚变中希格斯玻色子产生的第一个匹配的次-次-领先预测。该方法适用于红外区域内所有具有运动学相消特征的观测量。

英文摘要:

We propose a new approach to the resummation of the transverse-momentum distribution of a high-mass colour-singlet system in hadronic collisions. The resummation is performed in momentum space and is free of kinematic singularities at small transverse momentum. We derive a formula accurate at the next-to-next-to-leading-logarithmic level, and present the first matched predictions to next-to-next-to-leading order for Higgs-boson production in gluon fusion at the LHC. This method can be adapted to all observables featuring kinematic cancellations in the infrared region.

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。

↑