Pseudoscalar form factors of the Delta(1232) in Baryon Chiral Perturbation Theory

ÜNAL ŞAHİN Y.

TURKISH JOURNAL OF PHYSICS, vol.44, no.3, pp.280-287, 2020 (ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 3
  • Publication Date: 2020
  • Doi Number: 10.3906/fiz-2002-22
  • Journal Name: TURKISH JOURNAL OF PHYSICS
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, Academic Search Premier, Compendex, INSPEC, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.280-287
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

The pseudoscalar current-delta transition form factors are calculated in the framework of relativistic baryon chiral perturbation theory including order O(q(4)). The complex-mass scheme, which is suitable and well-defined for unstable particles, is taken into account as a renormalization scheme. We discuss the low energy behavior of the pseudoscalar (g) over tilde (Q(2)) and (h) over tilde (Q(2)) form factors and note that the momentum dependence of the form factors is dominated by the pion pole contributions.