Mar 27 – 29, 2019
UCLA Faculty Center
US/Pacific timezone

New estimation of the secondary antideuteron cosmic-ray flux

Mar 28, 2019, 4:30 PM
30m
Hacienda Room (UCLA Faculty Center)

Hacienda Room

UCLA Faculty Center

UCLA Faculty Center 480 Charles Young Dr. East Los Angeles, CA USA
oral

Speaker

Diego Gomez Coral (Instituto de Física, UNAM)

Description

A new study about the production of antideuterons in high-energy cosmic-ray collisions is presented in this work. Antideuteron production cross-section is obtained through the coalescence model, which is simulated using an afterburner and the Monte Carlo generator EPOS-LHC. Coalescence model key parameter ($p_0$) is calculated from the comparison of simulation to updated collider data, including ALICE-LHC results. Antideuteron propagation in the Galaxy is evaluated employing GALPROP. The resulting antideuteron flux shows a larger magnitude compared to previous studies and a slightly different shape in the energy distribution as a consequence of the coalescence parameter ($p_0$) energy dependence.

Author

Diego Gomez Coral (Instituto de Física, UNAM)

Presentation materials