Author:
Coogan Adam,Morrison Logan,Plehn Tilman,Profumo Stefano,Reimitz Peter
Abstract
AbstractWe present a new open-source package,Hazma 2, that computes accurate spectra relevant for indirect dark matter searches for photon, neutrino, and positron production from vector-mediated dark matter annihilation and for spin-one dark matter decay. The tool bridges across the regimes of validity of two state of the art codes:Hazma 1, which provides an accurate description below hadronic resonances up to center-of-mass energies around 250 MeV, andHerwig4DM, which is based on vector meson dominance and measured form factors, and accurate well into the few GeV range. The applicability of the combined code extends to approximately 1.5 GeV, above which the number of final state hadrons off of which we individually compute the photon, neutrino, and positron yield grows exceedingly rapidly. We provide example branching ratios, particle spectra and conservative observational constraints from existing gamma-ray data for the well-motivated cases of decaying dark photon dark matter and vector-mediated fermionic dark matter annihilation. Finally, we compare our results to other existing codes at the boundaries of their respective ranges of applicability.Hazma 2is freely available on GitHub athttps://github.com/LoganAMorrison/Hazma.
Subject
Astronomy and Astrophysics
Reference60 articles.
1. Review of Particle Physics;Zyla;PTEP,2020
2. Cosmological Lower Bound on Heavy Neutrino Masses;Lee;Phys. Rev. Lett.,1977
3. An Introduction to Particle Dark Matter;Profumo;Universe,2019
4. Hazma: A Python Toolkit for Studying Indirect Detection of Sub-GeV Dark Matter;Coogan;JCAP,2020
5. Snowmass White Paper: Light Dark Matter Direct Detection at the Interface With Condensed Matter Physics;Mitridate,2022
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献