|Date||February 03, 2023 - 14:00|
|Location||Alpha room, GANIL, Caen | France|
Lorenzo Contessi (IJCLab, Orsay, France)
Effective field theories promise to extract nuclear properties from first principles, however, no theory can grant access to many-body observables yet and, at the same time, remain connected with the fundamental theory of nuclear physics: QCD. I propose a new approach to the nuclear problem through a pionless expansion of the potential, together with a solution for the most problematic issues of this approach.
In this seminar, I will illustrate why a bottom-up contact approach can be the key to understanding the emergence of heavy nuclear features from few-nucleon properties. Moreover, I will show how it is possible to take advantage of the relative simplicity of contact EFTs for a direct matching with cluster and halo theories, ensuring a direct thread between fundamental symmetries and the peculiarities of clustered, halo, and neutron-rich systems.