Title: Probing dark showers at the LHCb

Dark shower is a generic feature of the Hidden Valley (HV) model, which produces bound states with a high multiplicity, low masses, and long lifetimes. The showering process can arise, for example, in Neutral Naturalness models, or in dark matter scenarios that explain the possible signal of galactic center gamma-ray. A collider search of such signals requires good invariant-mass and vertex resolution, as well as a good particle id to veto the background. I will explain why the LHCb experiment has a great potential in seeing these dark shower events and compare the estimated sensitivity to that of the future ATLAS/CMS searches.