# EPS-HEP2019

10-17 July 2019
Ghent
Europe/Brussels timezone

## Pseudoscalar current transition form factors of the delta in baryon chiral perturbation theory

11 Jul 2019, 15:00
15m
ICC - Baeckeland 3 (Ghent)

### ICC - Baeckeland 3

#### Ghent

Parallel talk QCD and Hadronic Physics

### Speaker

Dr Yasemin Ünal (Çanakkale Onsekiz Mart University)

### Description

We present the chiral corrections to the pseudoscalar current transition form factors of the delta in relativistic baryon chiral perturbation theory up to third chiral order using the complex-mass renormalization scheme (CMS) to generate a systematic power counting. We analyze the form factors $\tilde{g}(q^2)$ and $\tilde{h}(q^2)$ which are relevant to address the $\pi \Delta \Delta$ coupling constants at $q^2=0$. Knowledge on these form factors are necessary as there is no clear available experimental data for the pseudoscalar current-delta transition form factors which makes the topic still up to date for both experimental and theoretical studies.
\par
This study was supported by \c{C}anakkale Onsekiz Mart University Scientific Research Projects Commission under the grant no: FBA-2018-2666.}\

\textbf{Keywords:} Baryon chiral perturbation theory, CMS, delta resonance, form factors.

### Primary author

Dr Yasemin Ünal (Çanakkale Onsekiz Mart University)