Phys. Rev. C 61, 014608 (1999) [5 pages]Fragmentation and damping of the collective response in extended random-phase approximationReceived 23 July 1999; published 20 December 1999 The isoscalar monopole, isovector dipole, and isoscalar quadrupole excitations in 40Ca at zero and finite temperature are investigated in the quantal framework of the extended TDHF. Resonance excitations are broadened and shift down in energy due to coupling of collective modes with the 2p-2h doorway states, and the strength distributions exhibit fine structure. It is pointed out that a suitable finite range effective force is needed for a realistic description of the self-energies of the collective modes. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.61.014608
DOI:
10.1103/PhysRevC.61.014608
PACS:
24.30.Cz, 21.60.Jz, 24.60.Ky
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.