  We have analyzed our recently-measured three-body loss rate coefficient for a
Bose-Einstein condensate of spin-polarized metastable triplet 4He atoms in
terms of Efimov physics. The large value of the scattering length for these
atoms, which provides access to the Efimov regime, arises from a nearby
potential resonance. We find the loss coefficient to be consistent with the
three-body parameter (3BP) found in alkali-metal experiments, where Feshbach
resonances are used to tune the interaction. This provides new evidence for a
universal 3BP, the first outside the group of alkali-metal elements. In
addition, we give examples of other atomic systems without Feshbach resonances
but with a large scattering length that would be interesting to analyze once
precise measurements of three-body loss are available.
