Cosmic antiprotons prediction with updated production cross sections.

As there are no known astrophysical sources of cosmic ray (CR) antiprotons, they represent a good channel for indirect dark matter search. The secondary antiproton background is produced in collisions between primary CRs and the interstellar medium (spallation). In the last decade, thanks to high precision measurements by AMS-02 and PAMELA, a possible tension between the observed antiproton flux and different predictive models has been highlighted, between 1 and 500 GeV in the antiproton kinetic energy. In the 10--100 GeV range, the dominant uncertainties are the production cross section ones: the pp, p-He and He-p channels are responsible for almost all the cosmic antiprotons. Using the GALPROP-HelMod environment it is possible to calculate the propagation of the cosmic antiprotons in the Galaxy and in the heliosphere. The preliminary results of the predicted antiproton spectra, with updated antiproton secondary production cross section, are shown.