Energy loss of low energy protons and antiprotons in metals

C. C. MONTANARI; J. E. MIRAGLIA

Tirupati

Congreso; 7th Topical Conference of the Indian Society of Atomic and Molecular Physics (7TC-ISAMP); 2018

Indian Society of Atomic and Molecular Physics

We propose a non-perturbative approximation to the electronic stopping power based on the central screened potential of a projectile moving in a free electron gas, by Nagy and Apagyi. We calculate the energy loss of protons and antiprotons in ten solid targets: Cr, C, Ni, Be, Ti, Si, Al, Ge, Pb, Li and Rb. Our formalism is valid for low impact velocities, where plasmon excitations are not important. We extend the energy loss calculations to intermediate and high energies by using the Lindhard dielectric formalism (including plasmons) and the SLPA model to include the inner-shell contribution.