Supermultiplet structure and decay properties of hypernuclear 1 + resonances in Λ6Li

• Published in: Physics letters. B 1980-05, Vol.92 (3), p.256-260
• Main Authors: Majling, L., Sotona, M., Žofka, J., Fetisov, V.N., Eramzhyan, R.A.
• Format: Article
• Language: English
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(80)90258-0

The excitation function for the 0 ℏ ω and 1 ℏ ω levels of Λ 6Li, populated in the ( K −, π −) reaction at ϑ π = 0°, is calculated in the framework of the translationally invariant shell model. One-baryon and cluster widths for the decay of resonance hypernuclear states are estimated. The decay properties of those states are shown to be essentially given by the Young tableaux selection rules. Very good agreement with recent experimental data at p K = 790 MeV/ c at CERN is achieved. The decay of Λ 6 Li ∗ into exicted Λ 4 He ∗( Λ 4H ∗) with subsequent hypernuclear γ-emission is discussed as well.