Mass and width of theΔ(1232)resonance using complex-mass renormalization

6533b7d3fe1ef96bd1260ba7

RESEARCH PRODUCT

Mass and width of theΔ(1232)resonance using complex-mass renormalization

Ayse Kucukarslan T. Bauer Stefan Scherer Y. ÜNal Y. ÜNal

subject

Physics Particle physics Nuclear Theory Physics::Instrumentation and Detectors 010308 nuclear & particles physics Feynman graph 01 natural sciences Resonance (particle physics)Renormalization High Energy Physics - Phenomenology Third order High Energy Physics - Lattice Quantum electrodynamics 0103 physical sciences Convergence (routing)Effective field theory 010306 general physics Nuclear theory

description

We discuss the pole mass and the width of the $\Delta(1232)$ 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 (SSE).

year	journal	country	edition	language
2016-12-22	Physical Review C

https://doi.org/10.1103/physrevc.96.025203

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