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

Bauer, T.; Uenal, Y.; Kucukarslan, A.; Scherer, S.

doi:10.1103/physrevc.96.025203

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

Atıf İçin Kopyala

Bauer T., Uenal Y., Kucukarslan A., Scherer S.

PHYSICAL REVIEW C, cilt.96, 2017 (SCI İndekslerine Giren Dergi)

Cilt numarası: 96 Konu: 2
Basım Tarihi: 2017
Doi Numarası: 10.1103/physrevc.96.025203
Dergi Adı: PHYSICAL REVIEW C

Özet

We discuss the pole mass and the width of the Delta(1232) resonance to third order in chiral effective field theory. In our calculationwe 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.