Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S

H. Abdalla; F. Aharonian; F. Ait Benkhali; E.O. Angüner; M. Arakawa; C. Arcaro; C. Armand; M. Arrieta; M. Backes; M. Barnard; Y. Becherini; J. Becker Tjus; D. Berge; S. Bernhard; K. Bernlöhr; R. Blackwell; M. Böttcher; C. Boisson; J. Bolmont; S. Bonnefoy; P. Bordas; J. Bregeon; F. Brun; P. Brun; M. Bryan; M. Büchele; T. Bulik; T. Bylund; M. Capasso; S. Caroff; A. Carosi; S. Casanova; M. Cerruti; N. Chakraborty; S. Chandra; R.C.G. Chaves; A. Chen; S. Colafrancesco; B. Condon; I.D. Davids; C. Deil; J. Devin; P. Dewilt; L. Dirson; A. Djannati-Atai; A. Dmytriiev; A. Donath; V. Doroshenko; L.O'C. Drury; J. Dyks; K. Egberts; G. Emery; J.-P. Ernenwein; S. Eschbach; S. Fegan; A. Fiasson; G. Fontaine; S. Funk; M. Füssling; S. Gabici; Y.A. Gallant; F. Gaté; G. Giavitto; D. Glawion; J.F. Glicenstein; D. Gottschall; M.-H. Grondin; J. Hahn; M. Haupt; G. Heinzelmann; G. Henri; G. Hermann; J.A. Hinton; W. Hofmann; C. Hoischen; T.L. Holch; M. Holler; D. Horns; D. Huber; H. Iwasaki; A. Jacholkowska; M. Jamrozy; D. Jankowsky; F. Jankowsky; L. Jouvin; I. Jung-Richardt; M.A. Kastendieck; K. Katarzyński; M. Katsuragawa; U. Katz; D. Kerszberg; D. Khangulyan; B. Khélifi; J. King; S. Klepser; W. Kluźniak; Nu. Komin; K. Kosack; S. Krakau; M. Kraus; P.P. Krüger; G. Lamanna; J. Lau; J. Lefaucheur; A. Lemière; M. Lemoine-Goumard; J.-P. Lenain; E. Leser; T. Lohse; M. Lorentz; R. López-Coto; I. Lypova; D. Malyshev; V. Marandon; Alexandre Marcowith; C. Mariaud; G. Martí-Devesa; R. Marx; G. Maurin; P.J. Meintjes; A.M.W. Mitchell; R. Moderski; M. Mohamed; L. Mohrmann; E. Moulin; T. Murach; S. Nakashima; M. de Naurois; H. Ndiyavala; F. Niederwanger; J. Niemiec; L. Oakes; P. O'Brien; H. Odaka; S. Ohm; M. Ostrowski; I. Oya; M. Padovani; M. Panter; R.D. Parsons; C. Perennes; P.-O. Petrucci; B. Peyaud; Q. Piel; S. Pita; V. Poireau; A. Priyana Noel; D.A. Prokhorov; H. Prokoph; G. Pühlhofer; M. Punch; A. Quirrenbach; S. Raab; R. Rauth; A. Reimer; O. Reimer; Matthieu Renaud; F. Rieger; L. Rinchiuso; C. Romoli; G. Rowell; B. Rudak; E. Ruiz-Velasco; V. Sahakian; S. Saito; D.A. Sanchez; A. Santangelo; M. Sasaki; R. Schlickeiser; F. Schüssler; A. Schulz; U. Schwanke; S. Schwemmer; M. Seglar-Arroyo; M. Senniappan; A.S. Seyffert; N. Shafi; I. Shilon; K. Shiningayamwe; R. Simoni; A. Sinha; H. Sol; F. Spanier; A. Specovius; M. Spir-Jacob; L. Stawarz; R. Steenkamp; C. Stegmann; C. Steppa; T. Takahashi; J.-P. Tavernet; T. Tavernier; A.M. Taylor; R. Terrier; L. Tibaldo; D. Tiziani; M. Tluczykont; C. Trichard; M. Tsirou; N. Tsuji; R. Tuffs; Y. Uchiyama; D.J. van Der Walt; C. van Eldik; C. van Rensburg; B. van Soelen; George Vasileiadis; J. Veh; C. Venter; A. Viana; P. Vincent; J. Vink; F. Voisin; H.J. Völk; T. Vuillaume; Z. Wadiasingh; S.J. Wagner; R.M. Wagner; R. White; A. Wierzcholska; R. Yang; D. Zaborov; M. Zacharias; R. Zanin; A.A. Zdziarski; A. Zech; F. Zefi; A. Ziegler; J. Zorn; N. Żywucka; M. Cirelli; P. Panci; F. Sala; J. Silk; M. Taoso

doi:10.1088/1475-7516/2018/11/037

Journal article

Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S

H. Abdalla, F. Aharonian, F. Ait Benkhali, E.O. Angüner, M. Arakawa, C. Arcaro, C. Armand, M. Arrieta, M. Backes, M. Barnard, …

Journal of Cosmology and Astroparticle Physics, Vol.11

2018

DOI: https://doi.org/10.1088/1475-7516/2018/11/037

Abstract

dark matter: annihilation

dark matter: mass

cross section: annihilation

mass: thermal

gamma ray

spectral

galaxy

WIMP

electroweak interaction

boson

multiplet

HESS

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 σ v 3 × 10−25 cm3 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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Title: Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S
Creators - without role: H. Abdalla - North-West University
F. Aharonian - Max Planck Institute for Nuclear Physics
F. Ait Benkhali
E.O. Angüner - Aix-Marseille Université
M. Arakawa - Rikkyo University
C. Arcaro - North-West University
C. Armand - Laboratoire d’Annecy de Physique des Particules
M. Arrieta - Délégation Paris 7
M. Backes - University of Namibia
M. Barnard - North-West University
Y. Becherini - Linnaeus University
J. Becker Tjus
D. Berge
S. Bernhard - Universität Innsbruck
K. Bernlöhr - Max Planck Institute for Nuclear Physics
R. Blackwell - University of Adelaide
M. Böttcher - North-West University
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
S. Bonnefoy
P. Bordas - Max Planck Institute for Nuclear Physics
J. Bregeon - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Brun - Laboratoire de Physique des deux infinis Bordeaux
P. Brun - Université Paris-Saclay
M. Bryan - University of Amsterdam
M. Büchele - Friedrich-Alexander-Universität Erlangen-Nürnberg
T. Bulik - University of Warsaw
T. Bylund - Linnaeus University
M. Capasso - University of Tübingen
S. Caroff - École Polytechnique
A. Carosi - Laboratoire d’Annecy de Physique des Particules
S. Casanova - Max Planck Institute for Nuclear Physics
M. Cerruti - Sorbonne Paris Cité
N. Chakraborty - Max Planck Institute for Nuclear Physics
S. Chandra - North-West University
R.C.G. Chaves - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. Chen - University of the Witwatersrand
S. Colafrancesco - University of the Witwatersrand
B. Condon - Institut National de Physique Nucléaire et de Physique des Particules
I.D. Davids - University of Namibia
C. Deil - Max Planck Institute for Nuclear Physics
J. Devin - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
P. Dewilt - University of Adelaide
L. Dirson - Universität Hamburg
A. Djannati-Atai - Délégation Paris 7
A. Dmytriiev - Université Paris Sciences et Lettres
A. Donath - Max Planck Institute for Nuclear Physics
V. Doroshenko - University of Tübingen
L.O'C. Drury
J. Dyks - Polish Academy of Sciences
K. Egberts - University of Potsdam
G. Emery - Université Paris Cité
J.-P. Ernenwein - Aix-Marseille Université
S. Eschbach - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Fegan - Laboratoire Leprince-Ringuet
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
G. Fontaine - Laboratoire Leprince-Ringuet
S. Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Füssling
S. Gabici - Université Paris Cité
Y.A. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Gaté - Laboratoire d’Annecy de Physique des Particules
G. Giavitto
D. Glawion - Heidelberg University
J.F. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
D. Gottschall - University of Tübingen
M.-H. Grondin - Laboratoire de Physique des deux infinis Bordeaux
J. Hahn - Max Planck Institute for Nuclear Physics
M. Haupt
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
J.A. Hinton - Max Planck Institute for Nuclear Physics
W. Hofmann - Max Planck Institute for Nuclear Physics
C. Hoischen - University of Potsdam
T.L. Holch - Humboldt-Universität zu Berlin
M. Holler - Universität Innsbruck
D. Horns - Universität Hamburg
D. Huber - Universität Innsbruck
H. Iwasaki
A. Jacholkowska - Sorbonne Paris Cité
M. Jamrozy - Jagiellonian University
D. Jankowsky - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Jankowsky - Heidelberg University
L. Jouvin - Délégation Paris 7
I. Jung-Richardt - Friedrich-Alexander-Universität Erlangen-Nürnberg
M.A. Kastendieck - Universität Hamburg
K. Katarzyński - Nicolaus Copernicus University
M. Katsuragawa - Kavli Institute for the Physics and Mathematics of the Universe
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Kerszberg - Sorbonne Paris Cité
D. Khangulyan - Rikkyo University
B. Khélifi - Délégation Paris 7
J. King - Heidelberg University
S. Klepser
W. Kluźniak - Polish Academy of Sciences
Nu. Komin - University of the Witwatersrand
K. Kosack - Université Paris-Saclay
S. Krakau - Ruhr University Bochum
M. Kraus - Friedrich-Alexander-Universität Erlangen-Nürnberg
P.P. Krüger - North-West University
G. Lamanna - Université Savoie Mont Blanc
J. Lau - University of Adelaide
J. Lefaucheur - Université Paris-Saclay
A. Lemière - Délégation Paris 7
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P. Lenain - Sorbonne Paris Cité
E. Leser - University of Potsdam
T. Lohse - Humboldt-Universität zu Berlin
M. Lorentz - CEA Paris-Saclay
R. López-Coto - Max Planck Institute for Nuclear Physics
I. Lypova
D. Malyshev - University of Tübingen
V. Marandon - Max Planck Institute for Nuclear Physics
Alexandre Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
C. Mariaud - Laboratoire Leprince-Ringuet
G. Martí-Devesa - Universität Innsbruck
R. Marx - Max Planck Institute for Nuclear Physics
G. Maurin - Laboratoire d’Annecy de Physique des Particules
P.J. Meintjes - University of the Free State
A.M.W. Mitchell
R. Moderski - Polish Academy of Sciences
M. Mohamed - Heidelberg University
L. Mohrmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
E. Moulin - Université Paris-Saclay
T. Murach
S. Nakashima - Nippon Soken
M. de Naurois - École Polytechnique
H. Ndiyavala - North-West University
F. Niederwanger - Universität Innsbruck
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
L. Oakes - Humboldt-Universität zu Berlin
P. O'Brien - University of Leicester
H. Odaka - The University of Tokyo
S. Ohm
M. Ostrowski - Jagiellonian University
I. Oya
M. Padovani - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Panter - Max Planck Institute for Nuclear Physics
R.D. Parsons - Max Planck Institute for Nuclear Physics
C. Perennes - Laboratoire de Physique Nucléaire et de Hautes Énergies
P.-O. Petrucci - Université Grenoble Alpes
B. Peyaud - Université Paris-Saclay
Q. Piel - Laboratoire d’Annecy de Physique des Particules
S. Pita - Délégation Paris 7
V. Poireau - Laboratoire d’Annecy de Physique des Particules
A. Priyana Noel
D.A. Prokhorov - University of the Witwatersrand
H. Prokoph
G. Pühlhofer - University of Tübingen
M. Punch - Délégation Paris 7
A. Quirrenbach - Heidelberg University
S. Raab - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Rauth - Universität Innsbruck
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
Matthieu Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Rieger - Max Planck Institute for Nuclear Physics
L. Rinchiuso - Université Paris-Saclay
C. Romoli - Max Planck Institute for Nuclear Physics
G. Rowell - University of Adelaide
B. Rudak - Polish Academy of Sciences
E. Ruiz-Velasco - Max Planck Institute for Nuclear Physics
V. Sahakian - A. Alikhanyan National Laboratory
S. Saito - Rikkyo University
D.A. Sanchez - Laboratoire d’Annecy de Physique des Particules
A. Santangelo - University of Tübingen
M. Sasaki - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Schlickeiser - Ruhr University Bochum
F. Schüssler - Institut de Recherches sur les lois Fondamentales de l'Univers
A. Schulz
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwemmer - Heidelberg University
M. Seglar-Arroyo - Université Paris-Saclay
M. Senniappan - Linnaeus University
A.S. Seyffert - North-West University
N. Shafi - University of the Witwatersrand
I. Shilon - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Shiningayamwe - University of Namibia
R. Simoni - University of Amsterdam
A. Sinha - Sorbonne Paris Cité
H. Sol - Délégation Paris 7
F. Spanier - North-West University
A. Specovius - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Spir-Jacob - Université Paris Cité
L. Stawarz
R. Steenkamp - University of Namibia
C. Stegmann - University of Potsdam
C. Steppa - University of Potsdam
T. Takahashi
J.-P. Tavernet - Sorbonne Paris Cité
T. Tavernier - Université Paris-Saclay
A.M. Taylor
R. Terrier - Sorbonne Paris Cité
L. Tibaldo - Max Planck Institute for Nuclear Physics
D. Tiziani - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Tluczykont - Universität Hamburg
C. Trichard - École Polytechnique
M. Tsirou - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
N. Tsuji - Rikkyo University
R. Tuffs - Max Planck Institute for Nuclear Physics
Y. Uchiyama - Rikkyo University
D.J. van Der Walt - North-West University
C. van Eldik - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Rensburg - North-West University
B. van Soelen - University of the Free State
George Vasileiadis - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J. Veh - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Venter - North-West University
A. Viana - Universidade de São Paulo
P. Vincent - Sorbonne Paris Cité
J. Vink - University of Amsterdam
F. Voisin - University of Adelaide
H.J. Völk - Max Planck Institute for Nuclear Physics
T. Vuillaume - Laboratoire d’Annecy de Physique des Particules
Z. Wadiasingh - North-West University
S.J. Wagner - Heidelberg University
R.M. Wagner - Stockholm University
R. White - Max Planck Institute for Nuclear Physics
A. Wierzcholska - Institute of Nuclear Physics, Polish Academy of Sciences
R. Yang - Max Planck Institute for Nuclear Physics
D. Zaborov - École Polytechnique
M. Zacharias - North-West University
R. Zanin - Max Planck Institute for Nuclear Physics
A.A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Délégation Paris 7
F. Zefi - École Polytechnique
A. Ziegler - Friedrich-Alexander-Universität Erlangen-Nürnberg
J. Zorn - Max Planck Institute for Nuclear Physics
N. Żywucka - Jagiellonian University
M. Cirelli - Laboratoire de Physique Théorique et Hautes Energies
P. Panci - European Organization for Nuclear Research
F. Sala - Sorbonne Université
J. Silk - Johns Hopkins University
M. Taoso - Universidad Autónoma de Madrid
Publication Details: Journal of Cosmology and Astroparticle Physics, Vol.11
Identifiers: 9936988509311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-01897209