A dependence of the enhancement factor in energy-weighted sums for isovector giant resonances

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dc.creatorKolomietz, V. M.
dc.creatorLukyanov, S. V.
dc.date2008-07-01
dc.date2009-04-21
dc.date.accessioned2026-07-07T13:06:09Z
dc.date.available2026-07-07T13:06:09Z
dc.descriptionWe consider the energy weighted sums (EWS) for isovector giant dipole resonances (IVGDR) in finite nuclei within Landau kinetic theory. The dependence of both IVGDR energy, $E_{IVGDR}$, and the EWS enhancement factor, $κ(A)$, on the mass number $A$ occurs because of the boundary condition on the moving nuclear surface. The values of $E_{IVGDR}A^{1/3}$ and $κ(A)$ increase with $A$. The obtained value of the enhancement factor is about 10% for light nuclei and reaches approximately 20% for heavy nuclei. A fit of the enhancement factor to the proper experimental data provides a value for the isovector Landau amplitude of $F'_1\simeq 1.1$.
dc.description14 pages, 3 figures, revised version, published in Phys. Rev. C79, 024321 (2009)
dc.identifierhttps://arxiv.org/abs/0807.0089
dc.identifierhttp://arxiv.org/abs/0807.0089
dc.identifierPhys.Rev.C79:024321,2009
dc.identifierdoi:10.1103/PhysRevC.79.024321
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227689
dc.subjectNuclear Theory
dc.titleA dependence of the enhancement factor in energy-weighted sums for isovector giant resonances
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