| |  Online-Ressource |
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| Verfasst von: | Abdalla, Hassan [VerfasserIn]  |
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| | Eisenacher Glawion, Dorit [VerfasserIn] |
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| | Jankowsky, Felix [VerfasserIn] |
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| | King, Johannes [VerfasserIn] |
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| | Mohamed, Mahmoud [VerfasserIn] |
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| | Quirrenbach, Andreas [VerfasserIn] |
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| | Schwemmer, Stephanie [VerfasserIn] |
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| | Wagner, Stefan [VerfasserIn] |
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| Titel: | Searches for gamma-ray lines and "pure WIMP" spectra from dark matter annihilations in dwarf galaxies with H.E.S.S |
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| Körperschaft: | H.E.S.S. Collaboration [VerfasserIn] |
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| Verf.angabe: | $hH.E.S.S. Collaboration, H. Abdalla, D. Glawion, F. Jankowsky, J. King, M. Mohamed, A. Quirrenbach, S. Schwemmer, S.J. Wagner, [und weitere] |
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| E-Jahr: | 2018 |
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| Jahr: | 1 Oct 2018 |
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| Umfang: | 23 S. |
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| Fussnoten: | Gesehen am 07.08.2020 |
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| Titel Quelle: | Enthalten in: De.arxiv.org |
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| Ort Quelle: | [S.l.] : Arxiv.org, 1991 |
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| Jahr Quelle: | 2018 |
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| Band/Heft Quelle: | (2018) Artikel-Nummer 1810.00995, 23 Seiten |
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| Abstract: | Dwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems for a total of about 130 hours. The data are re-analyzed here, and, in the absence of any detected signals, are interpreted in terms of limits on the DM annihilation cross section. Two scenarios are considered: i) DM annihilation into mono-energetic gamma-rays and ii) DM in the form of pure WIMP multiplets that, annihilating into all electroweak bosons, produce a distinctive gamma-ray spectral shape with a high-energy peak at the DM mass and a lower-energy continuum. For case i), upper limits at 95\% confidence level of about $\langle \sigma v \rangle \lesssim 3 \times 10^{-25}$ cm$^3$ s$^{-1}$ are obtained in the mass range of 400 GeV to 1 TeV. For case ii), the full spectral shape of the models is used and several excluded regions are identified, but the thermal masses of the candidates are not robustly ruled out. |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: http://arxiv.org/abs/1810.00995 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | High Energy Physics - Experiment |
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| | High Energy Physics - Phenomenology |
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| | Astrophysics - High Energy Astrophysical Phenomena |
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| K10plus-PPN: | 1586616927 |
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| Verknüpfungen: | → Sammelwerk |
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Searches for gamma-ray lines and "pure WIMP" spectra from dark matter annihilations in dwarf galaxies with H.E.S.S / Abdalla, Hassan [VerfasserIn]; 1 Oct 2018 (Online-Ressource)
