SUSY in the sky or a keV signature of sub-GeV gravitino dark matter

Abstract

We point out that recently discovered 3.5 keV line in X-ray spectra from various galaxy clusters and the Andromeda galaxy can be naturally explained by physics of a sector responsible for spontaneous supersymmetry breaking in models with R-parity. In this scenario the source of this line could be decay of sgoldstino - scalar superpartner of massive gravitino. At the same time the dominant dark matter component is stable gravitino whose mass is predicted to be about 0.25 GeV.

arXiv comment8 pages, published version

References in corpus (30)

• Theories with Gauge-Mediated Supersymmetry Breaking
• 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
• Thermal Production of Gravitinos
• Thermal axion production
• Resonantly-Produced 7 keV Sterile Neutrino Dark Matter Models and the Properties of Milky Way Satellites
• A 3.55 keV hint for decaying axion-like particle dark matter
• Thermal axion production in the primordial quark-gluon plasma
• The 7 keV axion dark matter and the X-ray line signal
• An X-Ray Line from eXciting Dark Matter
• X-ray line signal from 7 keV axino dark matter decay
• X-ray line signal from decaying axino warm dark matter
• 7 keV sterile neutrino dark matter from split flavor mechanism
• Minimal Inflation
• X-ray Lines from Dark Matter: The Good, The Bad, and The Unlikely
• Relic Gravity Waves and 7 keV Dark Matter from a GeV scale inflaton
• X-ray lines from R-parity violating decays of keV sparticles
• A Minimal Inflation Scenario
• Gauge mechanism of mediation of supersymmetry breaking
• Anomaly-free flavor models for Nambu-Goldstone bosons and the 3.5 keV X-ray line signal
• 3.5 keV x-ray line from decaying gravitino dark matter
• Axino dark matter in light of an anomalous X-ray line
• Light Sgoldstino: Precision Measurements versus Collider Searches
• Signatures of massive sgoldstinos at e+e- colliders
• The 3.5 keV X-ray line signal from decaying moduli with low cutoff scale
• 7 keV Dark Matter as X-ray Line Signal in Radiative Neutrino Model
• Can a millicharged dark matter particle emit an observable gamma-ray line?
• Goldilocks Supersymmetry: Simultaneous Solution to the Dark Matter and Flavor Problems of Supersymmetry
• CompHEP Package with Light Gravitino and Sgoldstinos
• Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production

Cited by in corpus (26)

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• Discovery of a 3.5 keV line in the Galactic Center and a Critical Look at the Origin of the Line Across Astronomical Targets
• 3.55 keV photon lines from axion to photon conversion in the Milky Way and M31
• 7 keV Scalar Dark Matter and the Anomalous Galactic X-ray Spectrum
• Dark photon relic dark matter production through the dark axion portal
• 3.5 keV X-ray Line Signal from Decay of Right-Handed Neutrino due to Transition Magnetic Moment
• X-ray line in Radiative Neutrino Model with Global $U(1)$ Symmetry
• A Dynamical Framework for KeV Dirac Neutrino Warm Dark Matter
• Magnetic dark matter for the X-ray line at 3.55 keV
• Return of the X-rays: A New Hope for Fermionic Dark Matter at the keV Scale
• Decaying Vector Dark Matter as an Explanation for the 3.5 keV Line from Galaxy Clusters
• 3.5-keV X-ray line from nearly-degenerate WIMP dark matter decays
• X-ray Line from the Dark Transition Electric Dipole
• A Couplet from Flavored Dark Matter
• Displaced Vertices from X-ray Lines
• 3.55 keV line in Minimal Decaying Dark Matter scenarios
• 3.5 keV X-ray line and R-Parity Conserving Supersymmetry
• ${\nu }_R$ dark matter-philic Higgs for 3.5 keV X-ray signal
• Structure formation in a mixed dark matter model with decaying sterile neutrino: the 3.5 keV X-ray line and the Galactic substructure
• 3.5 keV Galactic Emission Line as a Signal from the Hidden Sector
• Polarization of photons emitted by decaying dark matter
• A sensitive search for unknown spectral emission lines in the diffuse X-ray background with XMM-Newton
• Supersymmetric Higgs-portal and X-ray lines
• New emission line at ~3.5 keV - observational status, connection with radiatively decaying dark matter and directions for future studies
• 7 keV sterile neutrino Dark Matter in extended seesaw framework