The compression-mode giant resonances and nuclear incompressibility
نویسندگان
چکیده
منابع مشابه
Compression mode giant resonances
Compression mode giant resonances have been measured in many nuclei from C to Pb with inelastic scattering of 240 MeV particles at small angles. Isoscalar monopole distributions have been extracted for 17 nuclei and isoscalar dipole distributions extracted for 11 nuclei. The E0 strength distributions in Zr, Sn, Sm and Pb have been measured precisely and in Sn, Sm and Pb were found to be concent...
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Using effective lagrangians which correspond to a wide range of values for K1 relativistic RPA calculations are performed for monopole and dipole compression modes in nuclei. It is found that Dirac sea states have an important effect on compression mode energies. Including these negative energy states into relativistic RPA brings the results into general agreement with those of time-dependent r...
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Studies of compression modes of nuclei are of particular interest since their strength distributions, S(E), are sensitive to the value of the nuclear matter incompressibility coefficient, K [1]. At present, Hartree-Fock (HF) based random-phase-approximation(RPA) calculations for the isoscalar giant monopole resonance (ISGMR) reproduce the experimental data for effective interactions associated ...
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We search for nonlinear effects in nuclear giant resonances (GRs), in particular the isovector dipole and the isoscalar quadrupole modes. To that end, we employ a spectral analysis of time-dependent Hartree-Fock (TDHF) dynamics using Skyrme forces. Based on TDHF calculations over a wide range of excitation amplitudes, we explore the collectivity and degree of harmonic motion in these modes. Bot...
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Scaling analysis of nuclear giant resonance transition probabilities with increasing level of complexity in the background states is performed. It is found that the background characteristics, typical for chaotic systems lead to nontrivial multifractal scaling properties. The statistical study of spectra of quantum systems is almost as old as quantum mechanics. In this context, the random-matri...
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ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 2018
ISSN: 0146-6410
DOI: 10.1016/j.ppnp.2018.03.001