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Title: Sensitivity of the Cherenkov Telescope Array to the detection of a dark matter signal in comparison to direct detection and collider experiments

Abstract

Imaging atmospheric Cherenkov telescopes (IACTs) that are sensitive to potential γ-ray signals from dark matter (DM) annihilation above ~50 GeV will soon be superseded by the Cherenkov Telescope Array (CTA). CTA will have a point source sensitivity an order of magnitude better than currently operating IACTs and will cover a broad energy range between 20 GeV and 300 TeV. Using effective field theory and simplified models to calculate γ-ray spectra resulting from DM annihilation, we compare the prospects to constrain such models with CTA observations of the Galactic center with current and near-future measurements at the Large Hadron Collider (LHC) and direct detection experiments. Here, for DM annihilations via vector or pseudoscalar couplings, CTA observations will be able to probe DM models out of reach of the LHC, and, if DM is coupled to standard fermions by a pseudoscalar particle, beyond the limits of current direct detection experiments.

Authors:
 [1];  [2];  [2];  [3];  [1];  [4];  [5];  [6]
  1. Monash Univ., Melbourne, VIC (Australia)
  2. Stockholm Univ., Stockholm (Sweden); The Oskar Klein Centre for Cosmoparticle Physics, Stockholm (Sweden)
  3. SISSA and INFN, Trieste (Italy)
  4. SLAC National Accelerator Lab., Stanford Univ., Stanford, CA (United States); Stockholm Univ., Stockholm (Sweden); The Oskar Klein Centre for Cosmoparticle Physics, Stockholm (Sweden)
  5. Max-Planck-Institut fur Kernphysik, Heidelberg (Germany)
  6. Stockholm Univ., Stockholm (Sweden); The Oskar Klein Centre for Cosmoparticle Physics, Stockholm (Sweden); Univ. Autonoma de Madrid, Madrid (Spain)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1408233
Grant/Contract Number:  
AC02-76SF00515; 2016-T1/TIC-1542; FPA2015-65929-P; SEV-2012-0249; CE110001004
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 8; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Balazs, Csaba, Conrad, Jan, Farmer, Ben, Jacques, Thomas, Li, Tong, Meyer, Manuel, Queiroz, Farinaldo S., and Sanchez-Conde, Miguel A. Sensitivity of the Cherenkov Telescope Array to the detection of a dark matter signal in comparison to direct detection and collider experiments. United States: N. p., 2017. Web. doi:10.1103/physrevd.96.083002.
Balazs, Csaba, Conrad, Jan, Farmer, Ben, Jacques, Thomas, Li, Tong, Meyer, Manuel, Queiroz, Farinaldo S., & Sanchez-Conde, Miguel A. Sensitivity of the Cherenkov Telescope Array to the detection of a dark matter signal in comparison to direct detection and collider experiments. United States. doi:10.1103/physrevd.96.083002.
Balazs, Csaba, Conrad, Jan, Farmer, Ben, Jacques, Thomas, Li, Tong, Meyer, Manuel, Queiroz, Farinaldo S., and Sanchez-Conde, Miguel A. Wed . "Sensitivity of the Cherenkov Telescope Array to the detection of a dark matter signal in comparison to direct detection and collider experiments". United States. doi:10.1103/physrevd.96.083002. https://www.osti.gov/servlets/purl/1408233.
@article{osti_1408233,
title = {Sensitivity of the Cherenkov Telescope Array to the detection of a dark matter signal in comparison to direct detection and collider experiments},
author = {Balazs, Csaba and Conrad, Jan and Farmer, Ben and Jacques, Thomas and Li, Tong and Meyer, Manuel and Queiroz, Farinaldo S. and Sanchez-Conde, Miguel A.},
abstractNote = {Imaging atmospheric Cherenkov telescopes (IACTs) that are sensitive to potential γ-ray signals from dark matter (DM) annihilation above ~50 GeV will soon be superseded by the Cherenkov Telescope Array (CTA). CTA will have a point source sensitivity an order of magnitude better than currently operating IACTs and will cover a broad energy range between 20 GeV and 300 TeV. Using effective field theory and simplified models to calculate γ-ray spectra resulting from DM annihilation, we compare the prospects to constrain such models with CTA observations of the Galactic center with current and near-future measurements at the Large Hadron Collider (LHC) and direct detection experiments. Here, for DM annihilations via vector or pseudoscalar couplings, CTA observations will be able to probe DM models out of reach of the LHC, and, if DM is coupled to standard fermions by a pseudoscalar particle, beyond the limits of current direct detection experiments.},
doi = {10.1103/physrevd.96.083002},
journal = {Physical Review D},
number = 8,
volume = 96,
place = {United States},
year = {2017},
month = {10}
}

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Cited by: 12 works
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    Works referencing / citing this record:

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