# Mass and width of the Δ ( 1232 ) resonance using complex-mass renormalization

@article{Bauer2016MassAW,
title={Mass and width of the $\Delta$ ( 1232 ) resonance using complex-mass renormalization},
author={Theodore Bauer and Yasemin Unal and Ayse Kucukarslan and S. Scherer},
journal={Physical Review C},
year={2016},
volume={96},
pages={025203}
}
• Published 22 December 2016
• Physics
• Physical Review C
We discuss the pole mass and the width of the $\mathrm{\ensuremath{\Delta}}(1232)$ resonance to third order in chiral effective field theory. In our calculation we choose the complex-mass renormalization scheme (CMS) and show that the CMS provides a consistent power-counting scheme. In terms of the pion-mass dependence, we compare the convergence behavior of the CMS with the small-scale expansion.

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