%0 Journal Article
%T Search for a Stable Six-Quark State at BABAR
%A BABAR Collaboration (Lees, J. P. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%J Physical Review Letters
%D 2019
%V 122
%N 7
%I Amer Physical Soc
%@ 0031-9007
%G English
%F BABARCollaborationLees_etal2019
%O WOS:000459583400006
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3921), last updated on Fri, 08 Mar 2019 09:12:02 +0000
%X 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.
%R 10.1103/PhysRevLett.122.072002
%U https://arxiv.org/abs/1810.04724
%U https://doi.org/10.1103/PhysRevLett.122.072002
%P 072002-7pp