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Nature of the Pygmy Dipole Resonance in Ce140 Studied in (α, α′γ) Experiments

Savran, D. and Babilon, M. and van den Berg, A. M. and Harakeh, M. and Hasper, J. and Matic, A. and Wörtche, H. J. and Zilges, A. (2006):
Nature of the Pygmy Dipole Resonance in Ce140 Studied in (α, α′γ) Experiments.
In: Physical Review Letters, APS, p. 172502, 97, (17), ISSN 0031-9007,
[Online-Edition: http://dx.doi.org/10.1103/PhysRevLett.97.172502],
[Article]

Item Type: Article
Erschienen: 2006
Creators: Savran, D. and Babilon, M. and van den Berg, A. M. and Harakeh, M. and Hasper, J. and Matic, A. and Wörtche, H. J. and Zilges, A.
Title: Nature of the Pygmy Dipole Resonance in Ce140 Studied in (α, α′γ) Experiments
Language: English
Journal or Publication Title: Physical Review Letters
Volume: 97
Number: 17
Publisher: APS
Divisions: 05 Department of Physics > Institute of Nuclear Physics
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 > A1: Kernstrukturphysik mit reellen Photonen
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
05 Department of Physics
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)
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 20 Jun 2011 07:12
Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.172502
Identification Number: doi:10.1103/PhysRevLett.97.172502
Alternative Abstract:
Alternative abstract Language
A concentration of electric-dipole excitations below the particle threshold, which is frequently denoted as the pygmy dipole resonance, has been studied in the semimagic nucleus 140Ce in (alpha, alpha[prime]gamma) experiments at Ealpha=136 MeV. The technique of alpha-gamma coincidence experiments allows the separation of E1 excitations from states of other multipolarities in the same energy region and provides an excellent energy resolution to allow a detailed analysis for each state. The experimental results show that the PDR splits into two parts with different nuclear structure: one part which is excited in (alpha, alpha[prime]gamma) as well as (gamma, gamma[prime]) experiments and one part which is excited only in (gamma, gamma[prime]).English
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