@Article{BABARCollaborationLees_etal2019, author="BABAR Collaboration (Lees, J. P. et al and Martinez-Vidal, F. and Oyanguren, A.", title="Search for a Stable Six-Quark State at BABAR", journal="Physical Review Letters", year="2019", publisher="Amer Physical Soc", volume="122", number="7", pages="072002--7pp", 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 (sic) > S (Lambda) over bar(Lambda) over bar decays based on a sample of 90 x 10(6)(sic)(2S) and 110 x 10(6)(sic)(3S) decays collected by the BABAR experiment. No signal is observed, and 90{\%} confidence level limits on the combined (sic)(2S, 3S) -> S (Lambda) over bar(Lambda) over bar branching fraction in the range (1.2-1.4) x 10(-7) are derived for m(s) < 2.05 GeV. These bounds set stringent limits on the existence of such exotic particles.", optnote="WOS:000459583400006", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3921), last updated on Fri, 08 Mar 2019 09:12:02 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.122.072002", opturl="https://arxiv.org/abs/1810.04724", opturl="https://doi.org/10.1103/PhysRevLett.122.072002", language="English" }