Resonant State in Helium-4 Lambda

Abstract

In a recent experiment E906 at the BNL-AGS, a search for light S=-2 hypernuclei, strong evidence was found for the nuclide Hydrogen-4 double Lambda. One of the most striking components of this data was the appearance of a narrow low-momentum pi- line at k(pi-) = 104-105 MeV/c. This was ascribed to the decay of Hydrogen-4 double Lambda into a resonant state in Helium-4 Lambda. The existence of such a state is shown to be plausible and its characteristics are delineated.

4 pages, 1 figure

References in corpus (7)

• The Hypernuclei ${}_{\Lambda }^4$He and ${}_{\Lambda }^4$H: Challenges for Modern Hyperon-Nucleon Forces
• Ab initio approach to s-shell hypernuclei 3H_Lambda, 4H_Lambda, 4He_Lambda and 5He_Lambda with a Lambda N-Sigma N interaction
• Faddeev-Yakubovsky calculations for light Lambda-Lambda hypernuclei
• `` $\Lambda -\Sigma$ conversion in ${}_{\Lambda }^4$He and ${}_{\Lambda }^4$H based on four-body calculation
• Faddeev-Yakubovsky search for Lambda-Lambda hydrogen-4
• Stochastic Variational Search for ${}_{\Lambda \Lambda }^4$H
• The H-Dibaryon and the Hard Core

Cited by in corpus (6)

• Strangeness in nuclear physics
• Full-Coupled Channel Approach to Doubly Strange $s$-Shell Hypernuclei
• Three-body resonances Lambda-n-n and Lambda-Lambda-n
• Lambda-Lambda hypernuclei and stranger systems
• Full-coupled channel approach to S=-2 s-shell hypernuclear systems
• Nonmesonic weak decay spectra of light hypernuclei