Updates on Antiproton Production Cross Section in Cosmic Rays Collision.

Antiprotons in cosmic rays (CRs) are studied to search for potential signals of exotic physics—such as dark matter annihilation—beyond the expected astrophysical background produced by collisions between primary CRs and the interstellar medium. However, predictions from secondary production models are limited by current uncertainties in antiproton production cross sections, which are on the order of 10–15\%. In this contribution, a novel analytic model for the production cross sections of antiprotons, based on the latest experimental data from accelerators, will be discussed. Preliminary results for the predicted antiproton spectrum, obtained using the cosmic ray propagation model GALPROP-HelMod with updated secondary production cross sections, will also be presented.