Indirect detection prospects for d${}^{\ast }$(2380) dark matter

Abstract

A Bose-Einstein condensate of the hexaquark particle known as d${}^{\ast }$(2380) has been recently proposed as a dark matter candidate by the authors in Bashkanov \& Watts 2020. This particle can produced in an abundant condensate state in the early universe and is argued to satisfy all the stability and weak interaction constraints of a viable dark matter candidate. This dark matter candidate is able to evade direct detection bounds and is suggested to have the best observational prospects in the form of indirect astrophysical emissions due to the decay of the d${}^{\ast }$ condensate. In this work we test the indirect observational prospects of this form of dark matter and find that its low mass $\sim 2$ GeV mean that sub-GeV gamma-rays searches have the best prospects in the Milky-Way galactic centre where we find ${\Gamma }_{d^{\ast }}<3.9\times 10^{-24}$ s${}^{-1}$, with current extra-galactic data from M31 and the Coma cluster producing constraints on the d${}^{\ast }$ decay rate two orders of magnitude weaker. In dwarf galaxies we show that the future GAMMA-400 instrument has the potential to probe down to ${\Gamma }_{d^{\ast }}\sim 10^{-25}$ s${}^{-1}$ with 4 years of exposure time.

16 pages, 5 figures

References in corpus (34)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• New CAST Limit on the Axion-Photon Interaction
• Experimental Searches for the Axion and Axion-like Particles
• A Universal Mass Profile for Dwarf Spheroidal Galaxies?
• Beasts of the Southern Wild: Discovery of nine Ultra Faint satellites in the vicinity of the Magellanic Clouds
• A New Era in the Quest for Dark Matter
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• Extended Search for the Invisible Axion with the Axion Dark Matter Experiment
• The Fermi Galactic Center GeV Excess and Implications for Dark Matter
• A White Paper on keV Sterile Neutrino Dark Matter
• Axions as Dark Matter Particles
• Search for dark matter annihilations towards the inner Galactic halo from 10 years of observations with H.E.S.S
• Constraining Light Dark Matter with Diffuse X-Ray and Gamma-Ray Observations
• Statistics of X-ray observables for the cooling-core and non-cooling core galaxy clusters
• Multi-frequency analysis of neutralino dark matter annihilations in the Coma cluster
• The long bar as seen by the VVV survey: I. Colour-magnitude diagrams
• Stellar mass map and dark matter distribution in M31
• The THESEUS space mission concept: science case, design and expected performances
• The Darkest Hour Before Dawn: Contributions to Cosmic Reionization from Dark Matter Annihilation and Decay
• Detecting dark matter WIMPs in the Draco dwarf: a multi-wavelength perspective
• Search for gamma-ray emission from the Coma Cluster with six years of Fermi-LAT data
• Observations of M31 and M33 with the Fermi Large Area Telescope: a galactic center excess in Andromeda?
• CLUMPY: a code for gamma-ray signals from dark matter structures
• CLUMPY: Jeans analysis, $\gamma$-ray and neutrino fluxes from dark matter (sub-)structures
• CLUMPY v3: $\gamma$-ray and $\nu$ signals from dark matter at all scales
• Search for Gamma-ray Emission from Dark Matter Annihilation in the Large Magellanic Cloud with the Fermi Large Area Telescope
• Constraints on dark matter annihilation by radio observations of M31
• Search for Gamma-ray Emission from Dark Matter Annihilation in the Small Magellanic Cloud with the Fermi Large Area Telescope
• Synchrotron Emission from Dark Matter Annihilation: Predictions for Constraints from Non-detections of Galaxy Clusters with New Radio Surveys
• Design and Performance of the GAMMA-400 Gamma-Ray Telescope for the Dark Matter Searches
• Magnetic fields and the outer rotation curve of M31
• Radio emission from dark matter annihilation in the Large Magellanic Cloud
• A new possibility for light-quark Dark Matter
• Constraining annihilating dark matter by radio data of M33