Search for Dark Matter in Upsilon Decays at BABAR Experiment

Abstract

Recent investigations have suggested that the singlet six-quark combination uuddss may be a deeply bound state S, called Sexaquark. An essentially stable state S is a potentially excellent Dark Matter candidate. We present the first search for a stable, doubly strange sixquark state in the decays of Υ(4S) → ΛΛ. Based on a data sample of Υ(2S) and Υ(3S) decays collected by the BABAR Experiment we report the most recent results and set stringent limits on the existence of such exotic particle.