Damping of giant monopole resonances within a linearized Landau-Vlasov dynamics
Anno: 1994
Autori: Abrosimov V., Di Toro M., Smerzi A.
Affiliazione autori: Dipartimento di Fisica, Università di Catania and INFN, Laboratorio Nazionale del Sud, V. le A. Doria, I-95125, Catania, Italy; Institute for Nuclear Research, 252022, Kiev, Ukraine
Abstract: Isoscalar monopole vibrations in spherical nuclei are studied within the Landau-Vlasov dynamics. Energy and strength of the giant monopole resonance (GMR) are well reproduced. The Landau damping of the monopole vibrations is analyzed. It is found that the local Fermi surface corresponding to the GMR is deformed. The collision integral is included within the relaxation time approximation. The found total width is too small to explain the observed one in heavy nuclei. Because the Landau damping is sensitive to the effective nuclear force the missing part of the width can be connected to certain properties of the latter.
Giornale/Rivista: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI
Volume: 347 (3) Da Pagina: 161 A: 171
Parole chiavi: Spherical Nuclei; Modes; Excitations; EquationDOI: 10.1007/BF01292372Citazioni: 9dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
