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Is Heavy Baryon Approach Necessary?

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arxiv hep-ph/9910260 v2 pith:G7QTMO3B submitted 1999-10-07 hep-ph

classification hep-ph
keywords baryonheavyapproachchiralnecessaryperturbationtheoryappealing
verification ladder T0 review T1 audit T2 compute T3 formal
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It is demonstrated that using an appropriately chosen renormalization condition one can respect power counting within the relativistic baryon chiral perturbation theory without appealing to the technique of the heavy baryon approach. Explicit calculations are performed for diagrams including two-loops. It is argued that the introduction of the heavy baryon chiral perturbation theory was useful but not necessary.

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Cited by 1 Pith paper

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  1. $|\Delta I|=3/2$ non-leptonic hyperon decays in covariant baryon chiral perturbation theory

    hep-ph 2026-08 conditional novelty 4.0 of 10

    In covariant baryon chiral perturbation theory, decuplet-baryon contributions with the consistent coupling scheme, plus pion loops, most improve the fit to the |ΔI|=3/2 hyperon decay amplitudes.

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