KiDS-Legacy: WIMP dark matter constraints from the cross-correlation of weak lensing and Fermi-LAT gamma rays

Abstract

Dark matter dominates the matter content of the Universe, and its properties can be constrained through large-scale structure probes such as the cross-correlation between the unresolved gamma-ray background (UGRB) and weak gravitational lensing. We analysed 15 years of Fermi-LAT data, constructing UGRB intensity maps in ten energy bins (0.5-1000 GeV), and cross-correlated them with KiDS-Legacy shear in six tomographic bins. The measurements were performed using angular power spectra estimated with the pseudo-$C_{\ell }$ method. No significant cross-correlation is found. Based on this non-detection, we present 95% upper bounds on the weakly interacting massive particle (WIMP) decay rate ${\Gamma }_{\mathrm{dec}}$ and velocity-averaged annihilation cross-section $⟨{\sigma }_{\mathrm{ann}}v⟩$ as functions of mass. We compare our results with bounds from other cosmological tracers and from local probes, and found them to be complementary, particularly at low masses ($GeV/TeV$). In addition, using a Euclid-like lensing survey cross-correlated with Fermi-LAT, we forecast $\sim$2 times tighter limits, highlighting the potential of forthcoming data to strengthen constraints on dark matter annihilation and decay.

18 pages, 13 figures, submitted to A&A

References in corpus (39)

• Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Data Calibration
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• Weak Corrections are Relevant for Dark Matter Indirect Detection
• Search for dark matter annihilations towards the inner Galactic halo from 10 years of observations with H.E.S.S
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -I. Methodology and a Fast Fitting Algorithm
• Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Power Spectra
• The Origin of the Extragalactic Gamma-Ray Background and Implications for Dark-Matter Annihilation
• Constraints on Dark Matter Annihilation in Clusters of Galaxies with the Fermi Large Area Telescope
• Gamma-ray Burst Cosmology
• KiDS-Legacy: Cosmological constraints from cosmic shear with the complete Kilo-Degree Survey
• Joint anisotropy and source count constraints on the contribution of blazars to the diffuse gamma-ray background
• Diffuse gamma-ray emission from galactic pulsars
• The halo model for cosmology: a pedagogical review
• Cross-Correlation of Cosmic Shear and Extragalactic Gamma-ray Background: Constraints on the Dark Matter Annihilation Cross-Section
• The diffuse $\gamma$-ray background is dominated by star-forming galaxies
• Particle dark matter searches outside the Local Group
• Evidence of cross-correlation between the CMB lensing and the gamma-ray sky
• Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco
• Cross-correlating the gamma-ray sky with catalogs of galaxy clusters
• The fifth data release of the Kilo Degree Survey: Multi-epoch optical/NIR imaging covering wide and legacy-calibration fields
• Power spectrum tomography of dark matter annihilation with local galaxy distribution
• KiDS-Legacy calibration: unifying shear and redshift calibration with the SKiLLS multi-band image simulations
• Creating Jackknife and Bootstrap estimates of the covariance matrix for the two-point correlation function
• Cross-correlation of weak lensing and gamma rays: implications for the nature of dark matter
• KiDS-Legacy: Consistency of cosmic shear measurements and joint cosmological constraints with external probes
• Fermi-LAT gamma-ray anisotropy and intensity explained by unresolved Radio-Loud Active Galactic Nuclei
• Cosmological constraints on dark matter annihilation and decay: Cross-correlation analysis of the extragalactic $\gamma$-ray background and cosmic shear
• Search for Gamma-ray Spectral Lines from Dark Matter Annihilation up to 100 TeV towards the Galactic Center with MAGIC
• Constraining the dark matter contribution of $\gamma$ rays in Cluster of galaxies using Fermi-LAT data
• Tomographic imaging of the Fermi-LAT gamma-ray sky through cross-correlations: A wider and deeper look
• Planck Lensing and Cosmic Infrared Background Cross-Correlation with Fermi-LAT: Tracing Dark Matter Signals in the Gamma-Ray Background
• Constraints on dark matter annihilation and decay from the large-scale structure of the nearby universe
• A Cross-correlation Study between IceCube Neutrino Events and the Fermi Unresolved Gamma-ray Sky
• KiDS-Legacy: Redshift distributions and their calibration
• Constraints on dark matter and astrophysics from tomographic $\gamma$-ray cross-correlations
• Constraints on ultracompact minihalos from the extragalactic gamma-ray background observation
• High-Significance Detection of Correlation Between the Unresolved Gamma-Ray Background and the Large Scale Cosmic Structure
• No evidence for p- or d-wave dark matter annihilation from local large-scale structure