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arXiv · 1607.00172

On a four-loop form factor in N=4

Rutger H. Boels·Bernd A. Kniehl·Gang Yang
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Abstract

We report on progress toward computing a four-loop supersymmetric form factor in maximally supersymmetric Yang-Mills theory. A representative example particle content from the involved supermultiplets is a stress-tensor operator with two on-shell gluons. In previous work, the integrand for this form factor was obtained using color-kinematic duality in a particularly simple form. Here the result of applying integration-by-parts identities is discussed and cross-checks of the result is performed. Rational IBP relations and their reduction are introduced as a potentially useful aide.

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Rutger H. Boels, Bernd A. Kniehl, Gang Yang. 2016-07-01. On a four-loop form factor in N=4. https://arxiv.org/abs/1607.00172

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