AMS-02 antiprotons are consistent with a secondary astrophysical origin - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Communication Dans Un Congrès Année : 2021

AMS-02 antiprotons are consistent with a secondary astrophysical origin

Résumé

The AMS-02 experiment has ushered cosmic-ray physics into precision era. Using the USINE code and an improved methodology, we extract the cosmic-ray transport parameters from the B/C data. We then derive a robust range of predictions for the secondary antiprotons flux, accounting for several sources of uncertainties and their correlations. Combined with a correlation matrix of systematic errors for the antiprotons data, we show that the latter are consistent with a secondary origin. We present key elements relevant to dark matter search in this channel, notably by pointing out the inherent difficulties in achieving predictions at the percent-level precision.

Dates et versions

hal-02973170 , version 1 (20-10-2020)

Identifiants

Citer

Mathieu Boudaud, Yoann Génolini, Laurent Derome, Julien Lavalle, David Maurin, et al.. AMS-02 antiprotons are consistent with a secondary astrophysical origin. 36th International Cosmic Ray Conference, Jul 2019, Madison, United States. pp.038, ⟨10.22323/1.358.0038⟩. ⟨hal-02973170⟩
63 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More