A5069263034- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Atmospheric and Environmental Gas Dynamics
- Nuclear Physics and Applications
- Atmospheric Ozone and Climate
- Solar and Space Plasma Dynamics
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
Institut National de Physique Nucléaire et de Physique des Particules
2020-2021
Centre National de la Recherche Scientifique
2020-2021
Université Grenoble Alpes
2020-2021
Laboratoire de Physique Subatomique et de Cosmologie
2020
The vertical diffusive halo size of the Galaxy, $L$, is a key parameter for dark matter indirect searches. It can be better determined thanks to recent AMS-02 data. We set constraints on $L$ from Be/B and $^{10}$Be/Be data, we performed consistency check with positron detail dependence forecast which energy range data would helpful future improvements. used USINE v3.5 propagation nuclei, $e^+$ were calculated pinching method Boudaud et al. (2017). current ($\sim3\%$ precision) ACE-CRIS...
The AMS-02 experiment measured several secondary-to-primary ratios enabling a detailed study of Galactic cosmic-ray transport. We constrain previously derived benchmark scenarios (based on B/C data only) using other ratios, to test the universality transport and presence low-rigidity diffusion break. use 1D thin disc/thick halo propagation model USINE $\chi^2$ minimisation accounting for covariance matrix errors (AMS-02 systematics) nuisance parameters (cross-sections solar modulation...
Galactic charged cosmic rays (notably electrons, positrons, antiprotons, and light antinuclei) are powerful probes of dark matter annihilation or decay, in particular, for candidates heavier than a few MeV tiny evaporating primordial black holes. Recent measurements by PAMELA, AMS-02, Voyager on positrons antiprotons already translate into constraints several models over large mass range. However, these depend transport models, the diffusive halo size, subject to theoretical statistical...