dorsal/arxiv
View SchemaOn the resonance spectra of particle-unstable light nuclei with a Sturmian approach that preserves the Pauli principle
| Authors | L. Canton, K. Amos, S. Karataglidis, G. Pisent, J. P. Svenne |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0612062 |
| URL | https://arxiv.org/abs/nucl-th/0612062 |
| Journal | Proceedings of the 11th International Conference on Nuclear Reaction Mechanisms, Varenna June 12-16 2006, p. 63. (Edited by E. Gadioli) |
Abstract
The fundamental ingredients of the MCAS (multi-channel algebraic scattering) method are discussed. The main feature, namely the application of the sturmian theory for nucleon-nucleus scattering, allows solution of the scattering problem given the phenomenological ingredients necessary for the description of weakly-bound (or particle-unstable) light nuclear systems. Currently, to describe these systems, we use a macroscopic, collective model. Analyses show that the couplings to low-energy collective-core excitations are fundamental but they are physically meaningful only if the constraints introduced by the Pauli principle are taken into account. For this we introduce in the nucleon-nucleus system the Orthogonalizing Pseudo-Potential formalism, extended to collective excitations of the core. The formalism leads one to discuss a new concept, Pauli hindrance, which appears to be important especially to understand the structure of weakly-bound and unbound systems.
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"abstract": "The fundamental ingredients of the MCAS (multi-channel algebraic scattering)\nmethod are discussed. The main feature, namely the application of the sturmian\ntheory for nucleon-nucleus scattering, allows solution of the scattering\nproblem given the phenomenological ingredients necessary for the description of\nweakly-bound (or particle-unstable) light nuclear systems. Currently, to\ndescribe these systems, we use a macroscopic, collective model. Analyses show\nthat the couplings to low-energy collective-core excitations are fundamental\nbut they are physically meaningful only if the constraints introduced by the\nPauli principle are taken into account. For this we introduce in the\nnucleon-nucleus system the Orthogonalizing Pseudo-Potential formalism, extended\nto collective excitations of the core. The formalism leads one to discuss a new\nconcept, Pauli hindrance, which appears to be important especially to\nunderstand the structure of weakly-bound and unbound systems.",
"arxiv_id": "nucl-th/0612062",
"authors": [
"L. Canton",
"K. Amos",
"S. Karataglidis",
"G. Pisent",
"J. P. Svenne"
],
"categories": [
"nucl-th"
],
"journal_ref": "Proceedings of the 11th International Conference on Nuclear\n Reaction Mechanisms, Varenna June 12-16 2006, p. 63. (Edited by E. Gadioli)",
"title": "On the resonance spectra of particle-unstable light nuclei with a Sturmian approach that preserves the Pauli principle",
"url": "https://arxiv.org/abs/nucl-th/0612062"
},
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