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A New Method for Helicity Calculations

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arxiv hep-ph/9403244 v1 pith:AEMFD2FS submitted 1994-03-08 hep-ph

classification hep-ph
keywords helicitymethodbuildcalculationscompletedevelopedfastfermions
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose a new helicity formalism based on the formal insertion in spinor lines of a complete set of states build up with unphysical spinors. The method is developed both for massless and massive fermions for which it turns out to be particularly fast. All relevant formulae are given.

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Cited by 1 Pith paper

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  1. Revisiting Gauge Ambiguities for DUNE Precision

    hep-ph 2025-02 conditional novelty 6.0 of 10

    Gauge-restoration and form-factor-scale ambiguities in the plane-wave impulse approximation produce 2-10% shifts in quasielastic cross sections, exceeding DUNE's few-percent target; an off-shell spinor method is proposed.

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