TY  - JOUR
AU  - Arina, C.
AU  - Di Mauro, M.
AU  - Fornengo, N.
AU  - Heisig, J.
AU  - Jueid, A.
AU  - Ruiz de Austri, R.
PY  - 2024
DA  - 2024//
TI  - CosmiXs: cosmic messenger spectra for indirect dark matter searches
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology And Astroparticle Physics
SP  - 035
EP  - 41pp
VL  - 03
IS  - 3
PB  - IOP Publishing Ltd
KW  - dark matter experiments
KW  - dark matter simulations
KW  - dark matter theory
AB  - The energy spectra of particles produced from dark matter (DM) annihilation or decay are one of the fundamental ingredients to calculate the predicted fluxes of cosmic rays and radiation searched for in indirect DM detection. We revisit the calculation of the source spectra for annihilating and decaying DM using the VINCIA shower algorithm in PYTHIA to include QED and QCD final state radiation and diagrams for the EW corrections with massive bosons, not present in the default PYTHIA shower model. We take into account the spin information of the particles during the entire EW shower and the off -shell contributions from massive gauge bosons. Furthermore, we perform a dedicated tuning of the VINCIA and PYTHIA parameters to LEP data on the production of pions, photons, and hyperons at the Z resonance and discuss the underlying uncertainties. To enable the use of our results in DM studies, we provide the tabulated source spectra for the most relevant cosmic messenger particles, namely antiprotons, positrons, gamma rays and the three neutrino flavors, for all the fermionic and bosonic channels and DM masses between 5 GeV and 100 TeV, on github.
SN  - 1475-7516
UR  - https://arxiv.org/abs/2312.01153
UR  - https://doi.org/10.1088/1475-7516/2024/03/035
DO  - 10.1088/1475-7516/2024/03/035
LA  - English
N1  - WOS:001195757300003
ID  - Arina_etal2024
ER  -