Accelerator-based Light Dark Sector Searches

Elucidating the nature of dark matter is one of the central challenges in fundamental physics. While WIMP searches have been driving experimental efforts during the last decades, a growing interest in light (sub-GeV) dark matter has recently emerged. Such possibility could arise naturally if the dark matter is part of a dark sector neutral under all Standard Model forces. This talk will review search strategies for light dark sector at accelerators, discuss recent results from the BABAR and Belle collaborations, and briefly introduce a new proposal, the Light Dark Matter eXperiment.