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 six-quark state in the decays of ${\rm Y}(4S)\to \Lambda \bar{\Lambda }$. Based on a data sample of ${\rm Y}(2S)$ and ${\rm Y}(3S)$ decays collected by the BABAR Experiment we report the most recent results and set stringent limits on the existence of such exotic particle.

Contributed to the Proceedings of the 16th International Conference on Topics in Astroparticle and Underground Physics, Toyama, Japan. This work was supported by the U.S. Department of Energy

References in corpus (3)

• The BABAR Detector
• Limits and Confidence Intervals in the Presence of Nuisance Parameters
• Search for a Stable Six-Quark State at BABAR