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Title: A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton

Abstract

The Standard Model of particle physics can be extended to include sterile (right-handed) neutrinos or axions to solve the dark matter problem. Depending upon the mixing angle between active and sterile neutrinos, the latter have the possibility to decay into monoenergetic active neutrinos and photons in the keV-range while axions can couple to two photons. We have used data taken with the X-ray telescope XMM-Newton for the search of line emissions. We used pointings with high exposures and expected dark matter column densities with respect to the dark matter halo of the Milky Way. The posterior predictive p-value analysis has been applied to locate parameter space regions which favour additional emission lines. In addition, upper limits of the parameter space of the models have been generated such that the preexisting limits have been significantly improved.

Authors:
;  [1];  [2]
  1. Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg (Germany)
  2. Hamburger Sternwarte, Universität Hamburg, Gojenbergsweg 112, D-21029 Hamburg (Germany)
Publication Date:
OSTI Identifier:
22676150
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 06; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AXIONS; DENSITY; EMISSION; KEV RANGE; MILKY WAY; MIXING ANGLE; NONLUMINOUS MATTER; PARTICLE DECAY; PHOTONS; SPACE; STANDARD MODEL; STERILE NEUTRINOS; TELESCOPES; X RADIATION

Citation Formats

Gewering-Peine, A., Horns, D., and Schmitt, J.H.M.M., E-mail: alexander.gewering-peine@desy.de, E-mail: dieter.horns@desy.de, E-mail: jschmitt@hs.uni-hamburg.de. A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/06/036.
Gewering-Peine, A., Horns, D., & Schmitt, J.H.M.M., E-mail: alexander.gewering-peine@desy.de, E-mail: dieter.horns@desy.de, E-mail: jschmitt@hs.uni-hamburg.de. A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton. United States. doi:10.1088/1475-7516/2017/06/036.
Gewering-Peine, A., Horns, D., and Schmitt, J.H.M.M., E-mail: alexander.gewering-peine@desy.de, E-mail: dieter.horns@desy.de, E-mail: jschmitt@hs.uni-hamburg.de. Thu . "A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton". United States. doi:10.1088/1475-7516/2017/06/036.
@article{osti_22676150,
title = {A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton},
author = {Gewering-Peine, A. and Horns, D. and Schmitt, J.H.M.M., E-mail: alexander.gewering-peine@desy.de, E-mail: dieter.horns@desy.de, E-mail: jschmitt@hs.uni-hamburg.de},
abstractNote = {The Standard Model of particle physics can be extended to include sterile (right-handed) neutrinos or axions to solve the dark matter problem. Depending upon the mixing angle between active and sterile neutrinos, the latter have the possibility to decay into monoenergetic active neutrinos and photons in the keV-range while axions can couple to two photons. We have used data taken with the X-ray telescope XMM-Newton for the search of line emissions. We used pointings with high exposures and expected dark matter column densities with respect to the dark matter halo of the Milky Way. The posterior predictive p-value analysis has been applied to locate parameter space regions which favour additional emission lines. In addition, upper limits of the parameter space of the models have been generated such that the preexisting limits have been significantly improved.},
doi = {10.1088/1475-7516/2017/06/036},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 06,
volume = 2017,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}