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Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

Eckner, Christopher ; Abdalla, H. ; Carlile, C. LU ; Dravins, D. LU orcid and Zmija, A. (2022) 37th International Cosmic Ray Conference In Proceedings of Science 395.
Abstract
High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe the sky in the 20 GeV - 300 TeV energy range. Thanks to its improved energy and angular resolutions as well as significantly larger effective area when compared to the current generation of Cherenkov telescopes, CTA is expected to probe heavier dark matter, with unprecedented sensitivity, reaching the thermal annihilation cross-section at 1 TeV. This talk will summarise the planned dark matter search strategies with CTA, focusing on the signal from the Galactic centre. As observed with the Fermi LAT at... (More)
High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe the sky in the 20 GeV - 300 TeV energy range. Thanks to its improved energy and angular resolutions as well as significantly larger effective area when compared to the current generation of Cherenkov telescopes, CTA is expected to probe heavier dark matter, with unprecedented sensitivity, reaching the thermal annihilation cross-section at 1 TeV. This talk will summarise the planned dark matter search strategies with CTA, focusing on the signal from the Galactic centre. As observed with the Fermi LAT at lower energies, this region is rather complex and CTA will be the first ground-based observatory sensitive to the large scale diffuse astrophysical emission from that region. We report on the collaboration effort to study the impact of such extended astrophysical backgrounds on the dark matter search, based on Fermi-LAT data in order to guide our observational strategies, taking into account various sources of systematic uncertainty. © Copyright owned by the author(s) under the terms of the Creative Commons. (Less)
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author
; ; ; and
author collaboration
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Annihilation, Dark Matter, Gamma rays, Germanium compounds, Telescopes, Tellurium compounds, Angular resolution, Cherenkov telescope arrays, Dark matter, Dark matter searches, Energy ranges, Energy resolutions, Galactic Center, High energy gamma rays, Pre-construction phase, Weakly interacting massive particles, Galaxies
host publication
37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
series title
Proceedings of Science
volume
395
article number
547
conference name
37th International Cosmic Ray Conference
conference location
Berlin, Germany
conference dates
2021-07-12 - 2021-07-23
external identifiers
  • scopus:85145018266
ISSN
1824-8039
DOI
10.22323/1.395.0547
language
English
LU publication?
yes
id
a6c789ed-d56f-4318-97ef-68fa60f72022
date added to LUP
2023-01-16 13:55:00
date last changed
2024-04-03 18:25:43
@inproceedings{a6c789ed-d56f-4318-97ef-68fa60f72022,
  abstract     = {{High-energy gamma rays are promising tools to constrain or reveal the nature of dark matter, in particular Weakly Interacting Massive Particles. Being well into its pre-construction phase, the Cherenkov Telescope Array (CTA) will soon probe the sky in the 20 GeV - 300 TeV energy range. Thanks to its improved energy and angular resolutions as well as significantly larger effective area when compared to the current generation of Cherenkov telescopes, CTA is expected to probe heavier dark matter, with unprecedented sensitivity, reaching the thermal annihilation cross-section at 1 TeV. This talk will summarise the planned dark matter search strategies with CTA, focusing on the signal from the Galactic centre. As observed with the Fermi LAT at lower energies, this region is rather complex and CTA will be the first ground-based observatory sensitive to the large scale diffuse astrophysical emission from that region. We report on the collaboration effort to study the impact of such extended astrophysical backgrounds on the dark matter search, based on Fermi-LAT data in order to guide our observational strategies, taking into account various sources of systematic uncertainty. © Copyright owned by the author(s) under the terms of the Creative Commons.}},
  author       = {{Eckner, Christopher and Abdalla, H. and Carlile, C. and Dravins, D. and Zmija, A.}},
  booktitle    = {{37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect}},
  issn         = {{1824-8039}},
  keywords     = {{Annihilation; Dark Matter; Gamma rays; Germanium compounds; Telescopes; Tellurium compounds; Angular resolution; Cherenkov telescope arrays; Dark matter; Dark matter searches; Energy ranges; Energy resolutions; Galactic Center; High energy gamma rays; Pre-construction phase; Weakly interacting massive particles; Galaxies}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre}},
  url          = {{http://dx.doi.org/10.22323/1.395.0547}},
  doi          = {{10.22323/1.395.0547}},
  volume       = {{395}},
  year         = {{2022}},
}