2026-06-28T10:12:28Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/82962023-08-27T16:50:49Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Arqueros Martínez, Fernando author Baquero Larriva, Orlando Andrés author Barrio Uña, Juan Abel author Contreras González, José Luis author Domínguez Díaz, Alberto author López Moya, Marcos author Miener, Tjark author Morcuende Parrilla, Daniel author Nieto Castaño, Daniel author Rosado Vélez, Jaime author Tejedor Álvarez, Luis Ángel author otros, ... 2023-06-17T09:09:32Z 2023-06-17T09:09:32Z 2021-01 1475-7516 10.1088/1475-7516/2021/01/057 https://hdl.handle.net/20.500.14352/8296 https://doi.org/10.1088/1475-7516/2021/01/057 https://iopscience.iop.org/ We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray signal from pair-annihilating dark matter particles in the region around the Galactic centre. We find that CTA will open a new window of discovery potential, significantly extending the range of robustly testable models given a standard cuspy profile of the dark matter density distribution. Importantly, even for a cored profile, the projected sensitivity of CTA will be sufficient to probe various well-motivated models of thermally produced dark matter at the TeV scale. This is due to CTA's unprecedented sensitivity, angular and energy resolutions, and the planned observational strategy. The survey of the inner Galaxy will cover a much larger region than corresponding previous observational campaigns with imaging atmospheric Cherenkov telescopes. CTA will map with unprecedented precision the large-scale diffuse emission in high-energy gamma rays, constituting a background for dark matter searches for which we adopt state-of-the-art models based on current data. Throughout our analysis, we use up-to-date event reconstruction Monte Carlo tools developed by the CTA consortium, and pay special attention to quantifying the level of instrumental systematic uncertainties, as well as background template systematic errors, required to probe thermally produced dark matter at these energies. eng Atribución 3.0 España Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre journal article URL https://docta.ucm.es/bitstreams/bd0ade3b-b9c7-4d6f-8558-0f32cc79060a/download File MD5 1c397aa1e133d30bd1152e93a8b314c3 6333948 application/pdf ContrerasJL37libre+CC.pdf