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General tree-level amplitudes by factorization limits · Around

2014

General tree-level amplitudes by factorization limits

Zhou, Kang, Qiao, Chenkai

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To find boundary contributions is a rather difficult problem when applying the BCFW recursion relation.

In this paper, we propose an approach to bypass this problem by calculating general tree amplitudes that contain no polynomial using factorization limits.
More explicitly, we construct an expression iteratively, which produces correct factorization limits for all physical poles, and does not contain other poles, then it should be the correct amplitude.
To some extent, this approach can be considered as an alternative way to find boundary contributions.

Built on

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