Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/45483
Title: | Scaling calculation of isoscalar giant resonances in relativistic Thomas-Fermi theory |
Author: | Patra, S. K. Viñas Gausí, Xavier Centelles Aixalà, Mario Estal, Manuel del |
Keywords: | Ressonància Teoria quàntica de camps Física nuclear Mesons (Física nuclear) Resonance Quantum field theory Nuclear physics Mesons (Nuclear physics) |
Issue Date: | 2002 |
Publisher: | Elsevier B.V. |
Abstract: | We derive analytical expressions for the excitation energy of the isoscalar giant monopole and quadrupole resonances in finite nuclei, by using the scaling method and the extended Thomas-Fermi approach to relativistic mean-field theory. We study the ability of several nonlinear σ-ω parameter sets of common use in reproducing the experimental data. For monopole oscillations the calculations agree better with experiment when the nuclear matter incompressibility of the relativistic interaction lies in the range 220-260 MeV. The breathing-mode energies of the scaling method compare satisfactorily with those obtained in relativistic RPA and time-dependent mean-field calculations. For quadrupole oscillations, all the analyzed nonlinear parameter sets reproduce the empirical trends reasonably well. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1016/S0375-9474(01)01531-7 |
It is part of: | Nuclear Physics A, 2002, vol. 703, num. 1-2, p. 240-268 |
URI: | https://hdl.handle.net/2445/45483 |
Related resource: | http://dx.doi.org/10.1016/S0375-9474(01)01531-7 |
ISSN: | 0375-9474 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
508590.pdf | 337.82 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.