Speaker
Yasemin Ünal
(Canakkale Onsekiz Mart University)
Description
Chiral perturbation theory (ChPT) is an effective field theory which can be applied in
the low-energy regime of QCD describing the strong interactions. Heavy baryons, such as
the $\Delta(1232)$ resonance, can be included in the theory and the desired physical quantities
can be calculated in ChPT in terms of an expansion in small parameters such as the pion
mass or small momenta. In this work, the form factors of the axial nucleon-delta transition
are calculated using the complex mass renormalization scheme (CMS), which is suitable for
unstable particles. The behavior of the form factors with respect to the transferred momentum
Ais discussed, and the axial charge of the nucleon-delta transition is obtained as $C_5^A = 1.19$.
Primary author
Yasemin Ünal
(Canakkale Onsekiz Mart University)
