Abstract Recent indirect searches of dark matter using gamma-ray, radio, and cosmic-ray data have provided some stringent constraints on annihilating matter. In this article, we propose a new method to constrain By the G2 cloud near Galactic supermassive black hole Sgr A*, can get parameter space mass annihilation cross section, especially for non-leptophilic channels $b\bar{b}$ W±. For thermal...

The recently reported result from XENON1T experiment indicates that there is an excess with $3.5\sigma$ significance in the electronic recoil events. Interpreted as new physics, sources are needed to account for scattering. We show a dark fermion $\psi$ mass about $ \mathcal{O}\left(10\right)$ MeV semi-annihilation of $Z_3$ matter $X$ and subsequent decay gauge boson $V_\mu$ may be responsible ...

An important predictor of historical sound change, functional load, fails to capture insights from speech perception. Building on ideal observer models of word recognition, we devise a new definition of functional load that incorporates both a priori expectedness and perceptual information. We explore this new measure with a simple model and find that it outperforms tra-