Heavy ion coulomb excitation and gamma decay studies of the one and two phonon giant dipole resonances in 208Pb and 209Bi

P. E. Mueller, J. R. Beene, F. E. Bertrand, M. L. Halbert, D. H. Olive, R. L. Varner, B. Sherrill, M. Thoennessen, P. Lautridou, F. Lefèvre, M. Marqués, T. Matulewicz, W. Mittig, R. Ostendorf, P. Roussel-Chomaz, Y. Schutz, J. van Pol, H. W. Wilschut, J. Díaz, J. L. FerreroA. Marín

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Abstract

Projectile - photon coincidences were measured for the scattering of an 80 MeV/nucleon 64Zn beam from 208Pb and 209Bi targets at the GANIL heavy ion accelerator facility. Projectile-like particles between 0.5° and 4.5° relative to the incident beam direction were detected in the SPEG energy loss spectrometer where their momentum, charge, and mass were determined. Photons were detected in the BaF2 scintillation detector array TAPS. Light charged particles produced in the reaction were detected in the KVI Forward Wall. The analysis of the data acquired in this experiment is focused on three different phenomena: (1) the two phonon giant dipole resonance, (2) time dependence of the decay of the one phonon giant dipole resonance, and (3) giant resonance strength in projectile nuclei.

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalNuclear Physics A
Volume569
Issue number1-2
DOIs
StatePublished - Mar 7 1994
Externally publishedYes

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