dorsal/arxiv
View SchemaCollective Dipole Oscillations in Atomic Nuclei and Small Metal Particles
| Authors | R. S. Bhalerao, M. Barma |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9305012 |
| URL | https://arxiv.org/abs/nucl-th/9305012 |
| DOI | 10.1007/BF02845850 |
Abstract
(The systematics of photon absorption cross sections in nuclei and small metal particles are examined as a function of the number of constituent fermions $A$. It is pointed out that the shell-structure-linked oscillations in the full width at half maximum (FWHM) of the photoneutron cross section in nuclei, earlier recognized for $A > 63$, in fact persist down to the lightest nuclei. Averaging over the oscillations or focusing on the lower envelope of the oscillating curve (magic nuclei), the FWHM is seen to generally decrease with increasing $A$, consistent with $A^{-1/3}$, a dependence which was earlier known to hold in metal particle systems. If the FWHMs are scaled by the respective Fermi energies and the inverse radii by the Fermi wave vectors, the two data sets become comparable in magnitude. A schematic theoretical description of the systematics is presented.)
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"abstract": "(The systematics of photon absorption cross sections in nuclei and small\nmetal particles are examined as a function of the number of constituent\nfermions $A$. It is pointed out that the shell-structure-linked oscillations in\nthe full width at half maximum (FWHM) of the photoneutron cross section in\nnuclei, earlier recognized for $A \u003e 63$, in fact persist down to the lightest\nnuclei. Averaging over the oscillations or focusing on the lower envelope of\nthe oscillating curve (magic nuclei), the FWHM is seen to generally decrease\nwith increasing $A$, consistent with $A^{-1/3}$, a dependence which was earlier\nknown to hold in metal particle systems. If the FWHMs are scaled by the\nrespective Fermi energies and the inverse radii by the Fermi wave vectors, the\ntwo data sets become comparable in magnitude. A schematic theoretical\ndescription of the systematics is presented.)",
"arxiv_id": "nucl-th/9305012",
"authors": [
"R. S. Bhalerao",
"M. Barma"
],
"categories": [
"nucl-th",
"cond-mat"
],
"doi": "10.1007/BF02845850",
"title": "Collective Dipole Oscillations in Atomic Nuclei and Small Metal Particles",
"url": "https://arxiv.org/abs/nucl-th/9305012"
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