The width of the $\Delta$-resonance at two loop order in baryon chiral perturbation theory

De-Liang Yao; Dmitrij Siemens; Jambul Gegelia; Ulf-G. Mei{\ss}ner

arxiv: 1608.00517 · v1 · pith:ICOOS4V2new · submitted 2016-08-01 · ✦ hep-ph

The width of the Delta-resonance at two loop order in baryon chiral perturbation theory

Jambul Gegelia , Ulf-G. Mei{\ss}ner , Dmitrij Siemens , De-Liang Yao This is my paper

classification ✦ hep-ph

keywords baryonchiraldeltaleadingorderperturbationresonancetheory

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We calculate the width of the delta resonance at leading two-loop order in baryon chiral perturbation theory. This gives a correlation between the leading pion-nucleon-delta and pion-delta couplings, which is relevant for the analysis of pion-nucleon scattering and other processes.

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The width of the Delta-resonance at two loop order in baryon chiral perturbation theory

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