Show simple item record

dc.contributor.author
MAGIC Collaboration
dc.contributor.author
Aleksić, J.
dc.contributor.author
Biland, Adrian
dc.contributor.author
Hildebrand, Dorothée M.
dc.contributor.author
Vogler, Patrick
dc.contributor.author
et al.
dc.date.accessioned
2022-08-23T14:36:41Z
dc.date.available
2017-06-11T06:49:24Z
dc.date.available
2018-03-09T09:50:36Z
dc.date.available
2022-08-23T14:36:41Z
dc.date.issued
2014-02
dc.identifier.issn
1475-7516
dc.identifier.other
10.1088/1475-7516/2014/02/008
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/82414
dc.identifier.doi
10.3929/ethz-b-000082414
dc.description.abstract
We present the results of stereoscopic observations of the satellite galaxy Segue 1 with the MAGIC Telescopes, carried out between 2011 and 2013. With almost 160 hours of good-quality data, this is the deepest observational campaign on any dwarf galaxy performed so far in the very high energy range of the electromagnetic spectrum. We search this large data sample for signals of dark matter particles in the mass range between 100 GeV and 20 TeV. For this we use the full likelihood analysis method, which provides optimal sensitivity to characteristic gamma-ray spectral features, like those expected from dark matter annihilation or decay. In particular, we focus our search on gamma-rays produced from different final state Standard Model particles, annihilation with internal bremsstrahlung, monochromatic lines and box-shaped signals. Our results represent the most stringent constraints to the annihilation cross-section or decay lifetime obtained from observations of satellite galaxies, for masses above few hundred GeV. In particular, our strongest limit (95% confidence level) corresponds to a ∼ 500 GeV dark matter particle annihilating into τ+τ−, and is of order ⟨σannv⟩ ≃ 1.2 × 10−24 cm3 s−1 — a factor ∼ 40 above the ⟨σannv⟩ ≃ thermal value.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Institute of Physics
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.subject
Dark matter experiments
en_US
dc.subject
Gamma ray experiments
en_US
dc.subject
Dwarfs galaxies
en_US
dc.title
Optimized dark matter searches in deep observations of Segue 1 with MAGIC
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2014-02-06
ethz.journal.title
Journal of Cosmology and Astroparticle Physics
ethz.journal.volume
2014
en_US
ethz.journal.issue
2
en_US
ethz.pages.start
008
en_US
ethz.size
36 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchenphysik (IPP) / Institute for Particle Physics (IPP)::03381 - Pauss, Felicitas (emeritus)
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich, direkt::00012 - Lehre und Forschung, direkt::00007 - Departemente, direkt::02010 - Departement Physik / Department of Physics::02532 - Institut für Teilchenphysik (IPP) / Institute for Particle Physics (IPP)::03381 - Pauss, Felicitas (emeritus)
ethz.date.deposited
2017-06-11T06:52:39Z
ethz.source
ECIT
ethz.identifier.importid
imp593651c5db32627322
ethz.ecitpid
pub:129964
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-18T17:15:13Z
ethz.rosetta.lastUpdated
2018-03-09T09:50:39Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Optimized%20dark%20matter%20searches%20in%20deep%20observations%20of%20Segue%201%20with%20MAGIC&rft.jtitle=Journal%20of%20Cosmology%20and%20Astroparticle%20Physics&rft.date=2014-02&rft.volume=2014&rft.issue=2&rft.spage=008&rft.issn=1475-7516&rft.au=MAGIC%20Collaboration&Aleksi%C4%87,%20J.&Biland,%20Adrian&Hildebrand,%20Doroth%C3%A9e%20M.&Vogler,%20Patrick&rft.genre=article&rft_id=info:doi/10.1088/1475-7516/2014/02/008&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record