dorsal/arxiv
View SchemaLong- and short-range correlations in the ab-initio no-core shell model
| Authors | Ionel Stetcu, Bruce R. Barrett, Petr Navratil, James P. Vary |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0601076 |
| URL | https://arxiv.org/abs/nucl-th/0601076 |
| DOI | 10.1103/PhysRevC.73.037307 |
| Journal | Phys.Rev. C73 (2006) 037307 |
Abstract
In the framework of the ab-initio no-core shell model (NCSM), we describe the longitudinal-longitudinal distribution function, part of the inclusive (e,e') longitudinal response. In the two-body cluster approximation, we compute the effective operators consistent with the unitary transformation used to obtain the effective Hamiltonian. When short-range correlations are probed, the results display independence from the model space size and length scale. Long-range correlations are more difficult to model in the NCSM and they can be described only by increasing the model space or increasing the cluster size. In order to illustrate the model space independence for short-range observables, we present results for a large set of model spaces for 4He, and in 0-4hw model spaces for 12C.
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"abstract": "In the framework of the ab-initio no-core shell model (NCSM), we describe the\nlongitudinal-longitudinal distribution function, part of the inclusive (e,e\u0027)\nlongitudinal response. In the two-body cluster approximation, we compute the\neffective operators consistent with the unitary transformation used to obtain\nthe effective Hamiltonian. When short-range correlations are probed, the\nresults display independence from the model space size and length scale.\nLong-range correlations are more difficult to model in the NCSM and they can be\ndescribed only by increasing the model space or increasing the cluster size. In\norder to illustrate the model space independence for short-range observables,\nwe present results for a large set of model spaces for 4He, and in 0-4hw model\nspaces for 12C.",
"arxiv_id": "nucl-th/0601076",
"authors": [
"Ionel Stetcu",
"Bruce R. Barrett",
"Petr Navratil",
"James P. Vary"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.73.037307",
"journal_ref": "Phys.Rev. C73 (2006) 037307",
"title": "Long- and short-range correlations in the ab-initio no-core shell model",
"url": "https://arxiv.org/abs/nucl-th/0601076"
},
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