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One-loop same helicity YM amplitudes from BG currents

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arxiv 2110.00331 v1 pith:ENTKZNUR submitted 2021-10-01 hep-th

One-loop same helicity YM amplitudes from BG currents

classification hep-th
keywords amplitudesformulacurrentshelicitymomentaone-loopregionsame
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose and prove a new formula for the one-loop all same helicity Yang-Mills amplitudes. These amplitudes are seen to arise as a sum of products of two tree-level Berends-Giele currents connected by an effective propagator. To make sense of the propagators one needs to introduce the so-called region, or dual momenta. The formula is proven by observing that it readily implies the correct collinear limit properties. The only non-trivial part of the proof is establishing that our formula for the amplitude is invariant under shifts of the region momenta.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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  3. Off-shell recursion for all-loop planar integrands in Yang-Mills theory

    hep-th 2026-04 unverdicted novelty 5.0

    Yang-Mills planar loop integrands admit an off-shell recursion that organizes the pure-gluon sector into matrix form and incorporates ghost contributions, yielding a concrete two-loop strategy.