Speaker
Description
Study of few-body scattering and reaction processes is a highly contemporary topic in nuclear physics. In my contribution, I will present power-counting renormalizable potentials derived within so-called pionless effective field theory (/πEFT) up to next-to-leading order. This theory represents the simplest nuclear EFT which aims to address nuclear processes at very low energies. The pion degrees of freedom are integrated out and the breakdown scale of the theory is set by the pion mass. I will focus on renormalizability properties of derived nuclear potentials. Further, I will discuss non-perturbative inclusion of Coulomb interaction in the used power-counting scheme. In the final part, I will show our results of the systematic study of low-energy few-body scattering of charged projectile and target. In our work, the few-body scattering phase shifts were calculated for the first time using the Stochastic Variational Method in combination with a Harmonic Oscillator Trap corrected for the long-range Coulomb interaction.
