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arXiv 1504.06306hep-th
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关于多步BCFW递归关系

On Multi-step BCFW Recursion Relations

Bo Feng, Junjie Rao, Kang Zhou

摘要:

在本文中,我们广泛地调查的新算法称为多步BCFW递归关系。许多有趣的数学性质被发现和理解这些方面,人们可以找到一个系统的方法来完成计算的振幅有限,明确的步骤,并得到正确的答案,没有求助于任何特定的知识,从场论,除了质量尺寸和螺旋度。该过程包括极点集中和不一致性消除。新算法不能确定在不一致消除中幸存的术语。它们包括多项式和它们的推广,这些都是有待探索的有用对象。然后,我们将其应用于加引力的标准模型,以说明它的力量和局限性。在保证其可操作性的前提下,我们还初步探讨了如何通过减少步骤来提高其效率。

英文摘要:

In this paper, we extensively investigate the new algorithm known as the multi-step BCFW recursion relations. Many interesting mathematical properties are found and understanding these aspects, one can find a systematic way to complete the calculation of amplitude after finite, definite steps and get the correct answer, without recourse to any specific knowledge from field theories, besides mass dimension and helicities. This process consists of the pole concentration and inconsistency elimination. Terms that survive inconsistency elimination cannot be determined by the new algorithm. They include polynomials and their generalizations, which turn out to be useful objects to be explored. Afterwards, we apply it to the Standard Model plus gravity to illustrate its power and limitation. Ensuring its workability, we also tentatively discuss how to improve its efficiency by reducing the steps.

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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