# 56. International Winter Meeting on Nuclear Physics

22-26 January 2018
Bormio, Italy
Europe/Berlin timezone

## Coherent pi^0 photoproduction on spin-zero nuclei

22 Jan 2018, 17:15
3m
Bormio, Italy

#### Bormio, Italy

Poster Nuclear Structure and Astrophysics

### Speaker

Mr Viacheslav Tsaran (JGU Mainz)

### Description

The method of coherent $\pi^0$ photoproduction ( $\gamma$+ A${}_\text{g.s.}$ $\rightarrow$ $\pi^0$+ A${}_\text{g.s.}$, where A${}_\text{g.s.}$ is a nucleus in its ground state) provides an efficient tool to study nucleon distribution and the neutron skin of various nuclei. We investigate the case of nuclei with zero spin and isospin from the theoretical point of view in the framework of a distorted wave impulse approximation in the momentum space. For the pion-nucleus final-state interaction we employ a phenomenological pion- nucleus optical potential which involves analysis of pion-pion elastic scattering as a solution of the Lippmann-Schwinger integral equation. As a first application, we show results for the ${}^{12}$C nucleus, for which the harmonic oscillator shell model is used to develop a second-order optical potential.

### Primary authors

Prof. Marc Vanderhaeghen (Univ. Mainz) Mr Viacheslav Tsaran (JGU Mainz)

 Slides