Variational calculations for K-few-nucleon systems
Journal Article
·
· Physical Review. C, Nuclear Physics
- Andrzej Soltan Institute for Nuclear Studies, 00-681 Warsaw, Hoza 69 (Poland)
Deeply bound KNN, KNNN, and KNNNN states are discussed. The effective force exerted by the K meson on the nucleons is calculated with static nucleons. Next the binding energies are obtained by solving the Schroedinger equation or by variational calculations. The dominant attraction comes from the S-wave {lambda}(1405) and an additional contribution is due to {sigma}(1385). The latter state is formed at the nuclear peripheries and absorbs a sizable piece of the binding energy. It also generates new branches of quasibound states. The lowest binding energies based on a phenomenological KN input fall into the 40- to 80-MeV range for KNN, 90-150 MeV for KNNN, and 120-220 MeV for K{alpha} systems. The uncertainties are due to unknown KN interactions in the distant subthreshold energy region.
- OSTI ID:
- 21202700
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 79; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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Thu Apr 25 00:00:00 EDT 1991
· AIP Conference Proceedings (American Institute of Physics); (United States)
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OSTI ID:6035077