Mass and width of the Roper resonance using complex-mass renormalization

Details Mass and width of the Roper resonance using complex-mass renormalization Mass and width of the Roper resonance using complex-mass renormalization

2009-03-04

arxiv.org/abs/0903.0736v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 fugures, REVTeX 4

Scientific paper

The pole mass and the width of the Roper resonance are calculated as
functions of the pion mass in the framework of low-energy effective field
theory of the strong interactions. We implement a systematic power-counting
procedure by applying the complex-mass renormalization scheme.

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