descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Dec 2003Embargo end date: 01 Jan 2001 English Publisher:Elsevier BVJournal:Nuclear Physics A, volume 729, pages 699-712 (issn: 0375-9474,

Authors: Fallot, Muriel; Chomaz, Ph.; Andres, M.V.; Catara, F.; Lanza, E.G.; Scarpaci, J.A.;

doi: 10.1016/j.nuclphysa.2003.10.001 , 10.48550/arxiv.nucl-th/0111013

arXiv: http://arxiv.org/abs/nucl-th/0111013

handle: 11441/64225

Anharmonic vibrations in nuclei

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Abstract

In this letter, we show that the non-linearitites of large amplitude motions in atomic nuclei induce giant quadrupole and monopole vibrations. As a consequence, the main source of anharmonicity is the coupling with configurations including one of these two giant resonances on top of any state. Two-phonon energies are often lowered by one or two MeV because of the large matrix elements with such three phonon configurations. These effects are studied in two nuclei, 40Ca and 208Pb.

4 pages, 4 tables

Related Organizations

Commissariat à l’Energie Atomique et aux Energies Alternatives
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University of Catania
Italy
Institut National de Physique Nucléaire et de Physique des Particules
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University of Paris
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IN2P3
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Keywords

[PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory (nucl-th), [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Theory, FOS: Physical sciences

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