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arXiv 0908.2786hep-ph
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构造多喷流速率的全阶修正

Constructing All-Order Corrections to Multi-Jet Rates

Jeppe R. Andersen, Jennifer M. Smillie

摘要:

本文讨论了在所有产生的粒子之间的无限快度分离极限下散射截面的普遍行为,并对n个喷注、W+n喷注、Z+n喷注(n= 2,3,4)和H+2,3喷注的产生明确地说明了这种行为。我们给出了一套规则,用于构建散射截面,这是准确的,在给定的限制,和订单的顺序再现以及完整的固定顺序的结果时,适用于LHC现象。近似包括真实和虚拟的校正,并且足够简单,以允许明确地构造调节的全阶微扰和。我们测试的预期精度通过比较结果顺序与完整的固定阶微扰理论的上述过程。

英文摘要:

We discuss the universal behaviour of scattering cross sections in the limit of infinite rapidity separation between all produced particles, and illustrate the behaviour explicitly for the production of n jets, W+n jets, Z+n jets for n=2,3,4, and for H+2,3 jets. We give a set of rules for constructing scattering cross sections, which are exact in the given limit, and order-by-order reproduce well the full fixed order results when applied to LHC phenomenology. The approximation includes both real and virtual corrections, and is sufficiently simple to allow for the regulated all-order perturbative sum to be explicitly constructed. We test the expected accuracy by comparing results order-by-order with full fixed-order perturbation theory for the processes mentioned above.

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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