Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - Dark Matter
Search for a stable six-quark state in $\Upsilon$ decays at $BABAR$
G. Eigen
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Pre-published on: June 10, 2020
Published on:
Abstract
Recent investigations have suggested that the six-quark combination $uuddss$ could be a deeply
bound state $(S)$ that has eluded detection so far, and a potential dark matter candidate. We report
the first search for a stable, doubly strange six-quark state in $\Upsilon$ → $S\overline\Lambda$ $\overline\Lambda$ decays with the $BABAR$
experiment. No signal is observed, and limits on the combined $\Upsilon(2S, 3S)$ → $S\overline\Lambda$ $\overline\Lambda$ branching
fraction set stringent limits on the existence of such exotic particles
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