Global R-matrix analysis of the 19F(α,n) reaction

In this work we report on the progress in the R-matrix analysis of the ¹⁹F(α,n)²²Na reaction at energies above the neutron threshold in the resolved resonance region, using the R-matrix code AZURE2. This reaction has been chosen for re-evaluation because of its importance in applications such as nonproliferation, nuclear astrophysics and low-background experiments. We present the progress of the multichannel multilevel R-matrix analysis of the ²³Na system and address the difficulties that arise mainly due to lack of level information in the energy of interest.