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arXiv 0710.1722hep-ph
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强子对撞机产生高横动量轻子对的精确电弱计算

Precision electroweak calculation of the production of a high transverse-momentum lepton pair at hadron colliders

C. M. Carloni Calame, G. Montagna, O. Nicrosini, A. Vicini

摘要:

我们提出了一个详细的研究生产的高横动量轻子对强子对撞机,其中包括精确的O(α)电弱校正适当匹配的领先对数效应由于多光子发射,所需的实验在费米实验室Tevatron和欧洲核子研究中心LHC。给出了强子对撞机上单个Z玻色子产生的相关观测值的数值计算结果。辐射修正的影响进行了详细讨论。在质子中的光子密度的存在被认为是光子引起的部分子过程的影响进行了分析。该计算已在新版本的事件发生器HORACE中实现,该事件发生器可用于精确模拟中性和带电电流Drell-Yan过程。

英文摘要:

We present a detailed study of the production of a high transverse-momentum lepton pair at hadron colliders, which includes the exact O(alpha) electroweak corrections properly matched with leading logarithmic effects due to multiple photon emission, as required by the experiments at the Fermilab Tevatron and the CERN LHC. Numerical results for the relevant observables of single Z-boson production at hadron colliders are presented. The impact of the radiative corrections is discussed in detail. The presence in the proton of a photon density is considered and the effects of the photon-induced partonic subprocesses are analyzed. The calculation has been implemented in the new version of the event generator HORACE, which is available for precision simulations of the neutral and charged current Drell-Yan processes.

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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