"Inelastic scattering as a tool to search for highly excited states up to the region of the Giant Quadrupole Resonance "
Roberto Nicolini, University of Milano and INFN Milano
(id #103)
Seminar: YesPoster: No
Invited talk: No
R. Nicolini1, D. Mengoni2, A. Bracco1, G. Benzoni3, F. Birocchi1, N. Blasi3, C. Boiano3, S. Brambilla3, F. Camera1, A. Camplani1, A. Corsi1, F.C.L. Crespi1, A. Giaz1, S. Leoni1, B. Million3, D. Montanari1,6, L. Pellegri1, S. Riboldi1, V. Vandone1, O. Wieland3, G. De Angelis4, A. Gadea5, D. R. Napoli4, F. Recchia6, J.J. Valiente-Dobon4, D. Bazzacco7, A. Gottardo6, E. Farnea7, S. Lenzi6, S. Lunardi6, C. Michelagnoli6, C. Ur7, A. Maj8, M. Kimiecik8, M. Ciemala8, S. Myalski8, A. Burger9, S. Akkoyun10
1. Milano University and INFN
2. University of West of Scotland and INFN Padova
3. INFN Milano
4. Legnaro National Laboratory, INFN
5. IFIC, Valencia, Spain
6. Padova University and INFN
7. INFN Padova
8. IFJ PAN Krakow
9. Oslo University
10. Ankara University
An AGATA-Demonstrator (AD) experiment to study the gamma decay from giant resonances at zero temperature has been performed in June 2010 at LNL. The giant resonance modes have been excited by inelastic scattering of 17O at 20 MeV/A (the highest energy available at LNL) on a series of targets, such as 208Pb, 90Zr and 140Ce. The scattered ions have been detected by two E-DeltaE Si telescopes of the TRACE project, while the gamma-decay have been measured by the AD coupled to an array of large volume scintillator detectors (BaF2 and LaBr3).
The experiment aimed at the measurement of a known case first, 208Pb, but with improved experimental conditions, in particular concerning the energy resolution of the gamma detections. In contrast to the existing measurement concentrating mainly on the gamma decay of the giant quadrupole resonance (GQR) in the 10-13 MeV range, the experiment aimed also at the measurement of the lower excitation energy region between 5 to 10 MeV, where pygmy dipole structures exist but not all of them are yet well identified. Preliminary results of the analysis will be shown.
1. Milano University and INFN
2. University of West of Scotland and INFN Padova
3. INFN Milano
4. Legnaro National Laboratory, INFN
5. IFIC, Valencia, Spain
6. Padova University and INFN
7. INFN Padova
8. IFJ PAN Krakow
9. Oslo University
10. Ankara University
An AGATA-Demonstrator (AD) experiment to study the gamma decay from giant resonances at zero temperature has been performed in June 2010 at LNL. The giant resonance modes have been excited by inelastic scattering of 17O at 20 MeV/A (the highest energy available at LNL) on a series of targets, such as 208Pb, 90Zr and 140Ce. The scattered ions have been detected by two E-DeltaE Si telescopes of the TRACE project, while the gamma-decay have been measured by the AD coupled to an array of large volume scintillator detectors (BaF2 and LaBr3).
The experiment aimed at the measurement of a known case first, 208Pb, but with improved experimental conditions, in particular concerning the energy resolution of the gamma detections. In contrast to the existing measurement concentrating mainly on the gamma decay of the giant quadrupole resonance (GQR) in the 10-13 MeV range, the experiment aimed also at the measurement of the lower excitation energy region between 5 to 10 MeV, where pygmy dipole structures exist but not all of them are yet well identified. Preliminary results of the analysis will be shown.
