eXTP perspectives for the $\nu$MSM sterile neutrino dark matter model

Abstract

We discuss the potential of the eXTP X-ray telescope, in particular its Spectroscopic Focusing Array (SFA), Large Area Detector (LAD) and Wide Field Monitor (WFM) for the detection of a signal from keV-scale decaying dark matter. We show that the sensitivity of the eXTP is sufficient to improve existing constraints on the mixing angle of the neutrino Minimal extension of the Standard Model ($\nu$MSM) by a factor of 5-10 within the dark matter mass range 2-50 keV, assuming 1% level of systematic uncertainty. We assert that the eXTP will be able to probe previously inaccessible range of $\nu$MSM parameters and serve as a precursor for the Athena mission in decaying dark matter searches.

arXiv commentUpdated to match accepted version

References in corpus (43)

• A Universal Density Profile from Hierarchical Clustering
• Particle Dark Matter: Evidence, Candidates and Constraints
• Sterile Neutrinos as Dark Matter
• WISPy Cold Dark Matter
• The $\nu$MSM, Dark Matter and Neutrino Masses
• A New Dark Matter Candidate: Non-thermal Sterile Neutrinos
• Detection of An Unidentified Emission Line in the Stacked X-ray spectrum of Galaxy Clusters
• An unidentified line in X-ray spectra of the Andromeda galaxy and Perseus galaxy cluster
• Accurate masses for dispersion-supported galaxies
• A Universal Mass Profile for Dwarf Spheroidal Galaxies?
• The Spectrum of Diffuse Cosmic Hard X-Rays Measured with HEAO-1
• Sterile Neutrino Dark Matter
• A White Paper on keV Sterile Neutrino Dark Matter
• Sterile neutrinos, dark matter, and the pulsar velocities in models with a Higgs singlet
• The Milky Way total mass profile as inferred from Gaia DR2
• Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed Neutrinos
• The enhanced X-ray Timing and Polarimetry mission - eXTP
• Direct Detection of Warm Dark Matter in the X-ray
• Lightest sterile neutrino abundance within the nuMSM
• A lower bound on the mass of Dark Matter particles
• The nuMSM, leptonic asymmetries, and properties of singlet fermions
• Sterile neutrino dark matter as a consequence of nuMSM-induced lepton asymmetry
• Dwarf galaxy annihilation and decay emission profiles for dark matter experiments
• INTEGRAL observations of the cosmic X-ray background in the 5-100 keV range via occultation by the Earth
• eXTP -- enhanced X-ray Timing and Polarimetry Mission
• Constraints on 3.55 keV line emission from stacked observations of dwarf spheroidal galaxies
• Remarks on the KARMEN Anomaly
• Lepton asymmetry and primordial nucleosynthesis in the era of precision cosmology
• The spectrum of the cosmic X-ray background observed by RTXE/PCA
• Hard X-ray emission from the Galactic ridge
• Constraining sterile neutrino dark matter by phase-space density observations
• INTEGRAL hard X-ray spectra of the cosmic X-ray background and Galactic ridge emission
• The masses of active neutrinos in the nuMSM from X-ray astronomy
• Next decade of sterile neutrino studies
• Dark Matter in Dwarf Spheroidal Galaxies and Indirect Detection: A Review
• Observatory science with eXTP
• Toward the full test of the nuMSM sterile neutrino dark matter model with Athena
• Anomaly-free flavor models for Nambu-Goldstone bosons and the 3.5 keV X-ray line signal
• Spectral Study of the Galactic Ridge X-ray Emission with Suzaku
• New mass bound on fermionic dark matter from a combined analysis of classical dSphs
• Testing the Minimal Direct Gauge Mediation at the LHC
• The Galactic Bulge Diffuse Emission in Broad-Band X-rays with NuSTAR
• A keV String Axion from High Scale Supersymmetry

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• Les Houches Lectures on Indirect Detection of Dark Matter
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• Entering the Era of Dark Matter Astronomy? Near to Long-Term Forecasts in X-Ray and Gamma-Ray Bands
• Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
• Search for primordial black hole dark matter with X-ray spectroscopic and imaging satellite experiments and prospects for future satellite missions
• Towards Testing Sterile Neutrino Dark Matter with Spectrum-Roentgen-Gamma Mission
• Neutrinos in Astrophysics and Cosmology: Theoretical Advanced Study Institute (TASI) 2020 Lectures
• Exploring Ultralight Scalar Assistance in Sterile Neutrino Dark Matter: Cold Spectrum and Unusual X/Gamma-ray Signatures
• Opening up New Parameter Space for Sterile Neutrino Dark Matter
• Sterile neutrino Dark Matter in the minimal Dirac Seesaw