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Giant resonances — experiments at highest resolution, wavelets and scales

Richter, A. (2005)
Giant resonances — experiments at highest resolution, wavelets and scales.
In: Progress in Particle and Nuclear Physics, 55 (1)
doi: 10.1016/j.ppnp.2005.01.002
Article, Bibliographie

Item Type: Article
Erschienen: 2005
Creators: Richter, A.
Type of entry: Bibliographie
Title: Giant resonances — experiments at highest resolution, wavelets and scales
Language: English
Date: July 2005
Journal or Publication Title: Progress in Particle and Nuclear Physics
Volume of the journal: 55
Issue Number: 1
DOI: 10.1016/j.ppnp.2005.01.002
Alternative Abstract:
Alternative abstract Language

Recent high-resolution experiments using electron and proton scattering and charge-exchange reactions covering a wide mass range of nuclei establish the fine structure of giant resonances as a global phenomenon. Experimental evidence includes a systematic study of the isoscalar giant quadrupole resonance (ISGQR) in 58Ni, 89Y, 90Zr, 120Sn and 208Pb, the first observation of fine structure of the Gamow-Teller resonance in a heavy nucleus, 90Nb, as well as of the isovector giant dipole (IVGDR) and magnetic quadrupole (M2) modes. Novel methods based on wavelet transforms are introduced for the extraction of scales characterizing the fine structure and evaluating their relative importance. Comparison of those scales to predictions from microscopic model calculations including 2p-2h degrees of freedom indicate surface vibration coupling as the underlying mechanism for their appearance. A generic pattern is also found for the stochastic coupling to the background of the more complex states.

English
Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > A: Kernstrukturphysik
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > A: Kernstrukturphysik > A2: Kernstrukturphysik mit virtuellen Photonen
Date Deposited: 20 Jun 2011 07:12
Last Modified: 26 Aug 2018 21:26
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