Abstract
In the quark bag model, the same gluon-exchange forces which make the proton lighter than the bind six quarks to form a stable, flavor-singlet (with strangeness of - 2) dihyperon () at 2150 MeV. Another isosinglet dihyperon () with at 2335 MeV should appear as a bump in invariant-mass plots. Production and decay systematics of the are discussed.
- Received 1 November 1976
DOI:https://doi.org/10.1103/PhysRevLett.38.195
©1977 American Physical Society