Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino

© 2021 American Physical Society. TeV-scale particles that couple to the standard model through the weak force represent a compelling class of dark matter candidates. The search for such weakly interacting massive particles has already spanned multiple decades, and whilst it has yet to provide any d...

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Main Authors: Rinchiuso, Lucia, Macias, Oscar, Moulin, Emmanuel, Rodd, Nicholas L, Slatyer, Tracy R
Format: Article
Language:English
Published: American Physical Society (APS) 2022
Online Access:https://hdl.handle.net/1721.1/142223
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author Rinchiuso, Lucia
Macias, Oscar
Moulin, Emmanuel
Rodd, Nicholas L
Slatyer, Tracy R
author_facet Rinchiuso, Lucia
Macias, Oscar
Moulin, Emmanuel
Rodd, Nicholas L
Slatyer, Tracy R
author_sort Rinchiuso, Lucia
collection MIT
description © 2021 American Physical Society. TeV-scale particles that couple to the standard model through the weak force represent a compelling class of dark matter candidates. The search for such weakly interacting massive particles has already spanned multiple decades, and whilst it has yet to provide any definitive evidence for their existence, viable parameter space remains. In this paper, we show that the upcoming Cherenkov Telescope Array (CTA) has significant sensitivity to uncharted parameter space at the TeV mass scale. To do so, we focus on two prototypical dark matter candidates, the Wino and Higgsino. Sensitivity forecasts for both models are performed including the irreducible background from misidentified cosmic rays, as well as a range of estimates for the Galactic emissions at TeV energies. For each candidate, we find substantial expected improvements over existing bounds from current imaging atmospheric Cherenkov telescopes. In detail, for the Wino we find a sensitivity improvement of roughly an order of magnitude in σv, whereas for the Higgsino we demonstrate that CTA has the potential to become the first experiment that has sensitivity to the thermal candidate. Taken together, these enhanced sensitivities demonstrate the discovery potential for dark matter at CTA in the 1-100 TeV mass range.
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spelling mit-1721.1/1422232022-09-27T18:11:52Z Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino Rinchiuso, Lucia Macias, Oscar Moulin, Emmanuel Rodd, Nicholas L Slatyer, Tracy R © 2021 American Physical Society. TeV-scale particles that couple to the standard model through the weak force represent a compelling class of dark matter candidates. The search for such weakly interacting massive particles has already spanned multiple decades, and whilst it has yet to provide any definitive evidence for their existence, viable parameter space remains. In this paper, we show that the upcoming Cherenkov Telescope Array (CTA) has significant sensitivity to uncharted parameter space at the TeV mass scale. To do so, we focus on two prototypical dark matter candidates, the Wino and Higgsino. Sensitivity forecasts for both models are performed including the irreducible background from misidentified cosmic rays, as well as a range of estimates for the Galactic emissions at TeV energies. For each candidate, we find substantial expected improvements over existing bounds from current imaging atmospheric Cherenkov telescopes. In detail, for the Wino we find a sensitivity improvement of roughly an order of magnitude in σv, whereas for the Higgsino we demonstrate that CTA has the potential to become the first experiment that has sensitivity to the thermal candidate. Taken together, these enhanced sensitivities demonstrate the discovery potential for dark matter at CTA in the 1-100 TeV mass range. 2022-05-02T13:05:24Z 2022-05-02T13:05:24Z 2021 2022-05-02T13:02:22Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142223 Rinchiuso, Lucia, Macias, Oscar, Moulin, Emmanuel, Rodd, Nicholas L and Slatyer, Tracy R. 2021. "Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino." Physical Review D, 103 (2). en 10.1103/PHYSREVD.103.023011 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
spellingShingle Rinchiuso, Lucia
Macias, Oscar
Moulin, Emmanuel
Rodd, Nicholas L
Slatyer, Tracy R
Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title_full Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title_fullStr Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title_full_unstemmed Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title_short Prospects for detecting heavy WIMP dark matter with the Cherenkov Telescope Array: The Wino and Higgsino
title_sort prospects for detecting heavy wimp dark matter with the cherenkov telescope array the wino and higgsino
url https://hdl.handle.net/1721.1/142223
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