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Does Σ-Σ-αForm a Quasi-Bound State?

H. Htun Oo·K. S. Myint·H. Kamada·W. Gloeckle
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Abstract

We have investigated the possible existence of a quasi-bound state for the Σ-Σ-αsystem in the framework of Faddeev calculations. We are particularly interested in the state of total iso-spin T=2, since for an inert αparticle there is no strong conversion to Ξ-N-αor Λ-Λ-αpossible. A Σ-αoptical potential based on Nijmegen model D and original Σ-Σinteractions of the series of Nijmegen potentials NSC97 as well a simulated Gaussian type versions thereof are used. Our investigation of the Σ-Σ-αsystem leads to a quasi bound state where, depending on the potential parameters, the energy ranges between -1.4 and -2.4 MeV and the level width is about 0.2MeV.

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H. Htun Oo, K. S. Myint, H. Kamada, W. Gloeckle. 2004-06-16. Does Σ-Σ-αForm a Quasi-Bound State?. https://doi.org/10.1143/ptp.113.809

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