DFMSPH22: A C-code for the double folding interaction potential of two spherical nuclei

This is a new version of the DFMSPH (DFMSPH14, DFMSPH19) code published earlier. The new version is designed to obtain the nucleus–nucleus potential between two spherical nuclei using the double folding model (DFM). In particular, the code enables one to find the Coulomb barrier. Using the new version, one can employ three types of effective nucleon–nucleon interaction: the M3Y, Migdal, and relativistic mean-field interactions. The main functionalities of the original code (the nucleus–nucleus potential as a function of the distance between the centers of mass of colliding nuclei and the characteristics of the Coulomb barrier) are retained. The new version enables using proton or neutron as the projectile particle for all nucleon–nucleon interactions but the Migdal one.