Erratum: Refining Galactic primordial black hole evaporation constraints [Phys. Rev. D 110 , 123022 (2024)]
Year: 2025
Type: erratum
Abstract: We correct the results obtained using the diffuse x-ray emission from Xmm-Newton, in light of new results from Ref. [1], that demonstrated that the dataset employed was misevaluated.We also update our calculation of the 511 keVemission from evaporating PBHs, which leads to slightly more conservative constraints as well.Reference [1], alongside with private communication with the authors of Ref. [2], suggest that recent bounds derived using Xmm-Newton data need to be revised.This arises from a misinterpretation regarding the solid angle of the observations with respect to the geometrical factor of a given ROI (which are 30 cocentric rings centered on the Galactic Center), this has also affected other recent dark matter (DM) indirect searches.In Ref. [2], they provide data that are normalized by the exposure-weighted average solid angle, which is orders of magnitude smaller than the geometric one.Taking for example Ring 3 (12°-18°), which was relevant to our work, the exposure-weighted average solid angle is 3.463 × 10 -5 sr, while the geometric angle is 0.156 sr, which is more than 4 orders of magnitude higher.FIG. 1.Comparison of the predicted DM-induced x-ray emission with diffuse x-ray data from Xmm-Newton in a region close to the Galactic Center.We show the prediction is shown for different values of M PBH when the PBH mass distribution is monochromatic (upper left panel), of a ⋆ (upper right panel) and σ when the distribution is log-normal (lower panel).
DOI: 10.1103/msry-jczm
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4416628940