Perhaps a Stable Dihyperon
R. L. JaffeStanford Linear Accelerator Center, Stanford University, Stanford, California 94305, and Department of Physics and Laboratory of Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
1977en
ABI
Abstract
In the quark bag model, the same gluon-exchange forces which make the proton lighter than the $\ensuremath{\Delta}(1236)$ bind six quarks to form a stable, flavor-singlet (with strangeness of - 2) ${J}^{P}={0}^{+}$ dihyperon ($H$) at 2150 MeV. Another isosinglet dihyperon (${H}^{*}$) with ${J}^{P}={1}^{+}$ at 2335 MeV should appear as a bump in $\ensuremath{\Lambda}\ensuremath{\Lambda}$ invariant-mass plots. Production and decay systematics of the $H$ are discussed.
Identifiers
Citations and references
Cited by 20 references