Direct and Indirect Probes for Dark Matter: from Recoil Electrons to Gravitational Waves

• Soroush Shakeri (Isfahan University of Technology)

The terrestrial experiments have been operating during the years in order to detect Dark Matter (DM) particles, including the recoil experiments that aim to measure the direct evidence of the interaction between the new particle and nuclear or atomic targets. Recently, the XENON1T collaboration observed a 3.5σ excess of events from recoil electrons which might be the evidence for the existence of DM particles with masses around 90 keV. Other existing DM search strategies are the decay of known particle into the DM particles, e.g. the anomalous decay of B-meson reported by the LHCb collaboration, and indirect searches which are looking for self-annihilation signal generated by DM particles. On the other hand, compact astrophysical objects such as neutron stars (NSs) can capture a sizable amount of DM which provide a unique astrophysical laboratory to indirectly probe the nature of DM. The impact of DM particles on the internal structure of NSs can be considered through Gravitational Wave signals. In this talk we will review our recent works in DM searches from ground based experiments to natural astrophysical laboratories.