TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
PY  - 2019
DA  - 2019//
TI  - Search for a Stable Six-Quark State at BABAR
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 072002
EP  - 7pp
VL  - 122
IS  - 7
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - https://arxiv.org/abs/1810.04724
UR  - https://doi.org/10.1103/PhysRevLett.122.072002
DO  - 10.1103/PhysRevLett.122.072002
LA  - English
N1  - WOS:000459583400006
ID  - BABARCollaborationLees_etal2019
ER  -