# Dark matter relic abundance beyond kinetic equilibrium

@article{Binder2021DarkMR, title={Dark matter relic abundance beyond kinetic equilibrium}, author={Tobias Binder and Torsten Bringmann and Michael Gustafsson and Andrzej Hryczuk}, journal={The European Physical Journal C}, year={2021} }

We introduce , a numerical precision tool for predicting the dark matter relic abundance also in situations where the standard assumption of kinetic equilibrium during the freeze-out process may not be satisfied. comes with a set of three dedicated Boltzmann equation solvers that implement, respectively, the traditionally adopted equation for the dark matter number density, fluid-like equations that couple the evolution of number density and velocity dispersion, and a full numerical evolution…

## 16 Citations

### DRAKE: Dark matter Relic Abundance beyond Kinetic Equilibrium

- PhysicsProceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)
- 2022

In the usual approach to the dark matter thermal relic abundance calculation an assumption of local thermal equilibrium is made. This proceedings presents a numerical precision tool DRAKE…

### A Global Analysis of Resonance-enhanced Light Scalar Dark Matter

- Physics
- 2022

We study a minimal model for a light scalar dark matter, requiring a light scalar mediator to address the core-cusp problem and interact with the standard model particles. We analyze the model…

### Toward a full description of MeV dark matter decoupling: A self-consistent determination of relic abundance and Neff

- PhysicsPhysical Review D
- 2022

Thermal dark matter at the MeV mass-scale has its abundance set during the highly non-trivial epochs of neutrino decoupling and electron annihilation. The technical obstacles attached to solving…

### Impact of dark matter self-scattering on its relic abundance

- PhysicsPhysical Review D
- 2022

Elastic self-scatterings do not change the number of dark matter particles and as such have been neglected in the calculation of its relic abundance. In this work we highlight the scenarios where the…

### DarkSUSY 6.3 – Freeze-in, out-of-equilibrium freeze-out, cosmic-ray upscattering and further new features

- PhysicsProceedings of Computational Tools for High Energy Physics and Cosmology — PoS(CompTools2021)
- 2022

DarkSUSY is a versatile tool for precision calculations of a large variety of dark matter-related signals, ranging from predictions for the dark matter relic density to dark matter self-interactions…

### Erratum: Dark Matter from Exponential Growth [Phys. Rev. Lett. 127, 191802 (2021)].

- PhysicsPhysical review letters
- 2022

This corrects the article DOI: 10.1103/PhysRevLett.127.191802.

### Analyzing the Hubble tension through hidden sector dynamics in the early universe

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

The recent analysis from the SH0ES collaboration has confirmed the existence of a Hubble tension between measurements at high redshift (z > 1000) and at low redshift (z < 1) at the 5σ level with the…

### Revisiting dark matter freeze-in and freeze-out through phase-space distribution

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

We revisit dark-matter production through freeze-in and freeze-out by solving the Boltzmann equations at the level of the phase-space distribution f(p,t). Using the 2 ⟶ 2 annihilation and the 1 ⟶ 2…

### Consistent explanation for the cosmic-ray positron excess in p-wave Breit–Wigner enhanced dark matter annihilation

- PhysicsThe European Physical Journal C
- 2022

Dark matter (DM) annihilation in the galactic halo can be enhanced relative to that in the early Universe due to the Breit–Wigner enhancement, if the DM particles annihilate through a narrow…

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