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Paper page - Single-minus gluon tree amplitudes are nonzero
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arxiv:2602.12176

Single-minus gluon tree amplitudes are nonzero

Published on Feb 12
ยท Submitted by
Lewis Tunstall
on Feb 13
ยท openai OpenAI
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Abstract

Single-minus tree-level n-gluon scattering amplitudes are reconsidered. Often presumed to vanish, they are shown here to be nonvanishing for certain "half-collinear" configurations existing in Klein space or for complexified momenta. We derive a piecewise-constant closed-form expression for the decay of a single minus-helicity gluon into n-1 plus-helicity gluons as a function of their momenta. This formula nontrivially satisfies multiple consistency conditions including Weinberg's soft theorem.

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A group of theoretical physicists derive a new result in quantum field theory using GPT-5.2 Pro.

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