Mass and width of the Delta(1232) resonance using complex-mass renormalization
PHYSICAL REVIEW C, cilt.96, sa.2, 2017 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 96 Sayı: 2
- Basım Tarihi: 2017
- Doi Numarası: 10.1103/physrevc.96.025203
- Dergi Adı: PHYSICAL REVIEW C
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet
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.