# 15th Varenna Conference on Nuclear Reaction Mechanisms

Jun 11 – 15, 2018
Villa Monastero
Europe/Zurich timezone

## Microscopic Optical Potential Derived from $NN$ Chiral Potentials.

Jun 14, 2018, 5:15 PM
30m
Villa Monastero

#### Villa Monastero

Varenna (Italy)
Potential, strangeness, pion

### Speaker

Prof. Carlotta Giusti (Università degli Studi di Pavia and INFN, Sezione di Pavia)

### Description

A microscopic optical potential for elastic proton-nucleus scattering has been derived at the first-order term within the spectator expansion of the non-relativistic multiple-scattering theory and adopting the impulse approximation.

Two-basic ingredients are required to build the optical potential: a model for nuclear densities and the $NN$ interaction. For the $NN$ interaction we have used for the first time chiral potentials. Different versions of chiral potentials at fourth (N$^3$LO) and fifth (N$^4$LO) order have been used with the purpose to check the convergence and to assess the theoretical errors associated with the truncation of the chiral expansion in the construction of an optical potential.
Results for the cross section, analysing power, and spin rotation of elastic proton scattering from different nuclei at different proton energy, in the range between 100 and 300 MeV, are presented and compared with the available experimental data and also with the results of a phenomenological optical potential.

### Primary authors

Prof. Carlotta Giusti (Università degli Studi di Pavia and INFN, Sezione di Pavia) Dr Matteo Vorabbi (TRIUMF) Dr Paolo Finelli (Dipartimento di Fisica e Astronomia, Università degli Studi di Bologna and INFN, Sezione di Bologna)