Simple models for shell-model configuration densities

doi:10.1103/PHYSREVC.74.067302

Title: Simple models for shell-model configuration densities

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Abstract

We consider the secular behavior of shell-model configuration (partial) densities. When configuration densities are characterized by their moments, one often finds large third moments (asymmetries), which make suitable parametrization of the secular behavior problematic. We review several parameterizations or models and compare to exact numerical configuration densities. We propose a modified Breit-Wigner form which provides a better secular approximation, for large asymmetries, compared to models based on Gaussian forms.

Authors:

Teran, Edgar; Johnson, Calvin W. ^[1]

Department of Physics, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1233 (United States)

Publication Date:: Fri Dec 15 00:00:00 EST 2006

OSTI Identifier:: 20864249

Resource Type:: Journal Article

Resource Relation:: Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 74; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.74.067302; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; APPROXIMATIONS; ASYMMETRY; BREIT-WIGNER FORMULA; COMPARATIVE EVALUATIONS; DENSITY; ENERGY-LEVEL TRANSITIONS; REVIEWS; SHELL MODELS; STATISTICAL MODELS

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                    Teran, Edgar, and Johnson, Calvin W. Simple models for shell-model configuration densities.  United States: N. p., 2006. 
        Web.  doi:10.1103/PHYSREVC.74.067302.

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                    Teran, Edgar, & Johnson, Calvin W. Simple models for shell-model configuration densities.  United States.  doi:10.1103/PHYSREVC.74.067302.

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                    Teran, Edgar, and Johnson, Calvin W. Fri .  
        "Simple models for shell-model configuration densities".  United States.  
        doi:10.1103/PHYSREVC.74.067302.

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@article{osti_20864249,

  title        = {Simple models for shell-model configuration densities},

  author       = {Teran, Edgar and Johnson, Calvin W.},

  abstractNote = {We consider the secular behavior of shell-model configuration (partial) densities. When configuration densities are characterized by their moments, one often finds large third moments (asymmetries), which make suitable parametrization of the secular behavior problematic. We review several parameterizations or models and compare to exact numerical configuration densities. We propose a modified Breit-Wigner form which provides a better secular approximation, for large asymmetries, compared to models based on Gaussian forms.},

  doi          = {10.1103/PHYSREVC.74.067302},

  journal      = {Physical Review. C, Nuclear Physics},

  number       = 6,

  volume       = 74,

  place        = {United States},

  year         = {Fri Dec 15 00:00:00 EST 2006},

  month        = {Fri Dec 15 00:00:00 EST 2006}

}

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DOI: 10.1103/PHYSREVC.74.067302

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