Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 20: Structure and Dynamics of Nuclei V
HK 20.2: Vortrag
Dienstag, 15. März 2016, 14:30–14:45, S1/01 A03
Probing the Pygmy Dipole Resonance in 140Ce by means of the (p,p′γ) reaction at intermediate energy — •V. Derya1, S. Bagchi2, J. Endres1, E. Fiori3, M.N. Harakeh2,4, N. Kalantar-Nayestanaki2, M.A. Najafi2, S. Pascu1, S.G. Pickstone1, N. Pietralla5, C. Rigollet2, C. Romig5, D. Savran3, M. Spieker1, H.J. Wörtche2, and A. Zilges1 — 1Institute for Nuclear Physics, University of Cologne, Germany — 2KVI-CART, University of Groningen, the Netherlands — 3GSI, Darmstadt, Germany — 4GANIL, CEA/DSM-CNRS/IN2P3, Caen, France — 5TU Darmstadt, Germany
The Pygmy Dipole Resonance (PDR) has been studied using various experimental methods [1], including systematic (α,α’γ) and (γ,γ’) experiments [1] as well as (17O,17O’γ) experiments [2]. Protons at 80 MeV were used as a complementary hadronic probe in a (p,p’γ) coincidence experiment on 140Ce. The experiment was performed at KVI in Groningen, the Netherlands. Due to a higher energy per nucleon compared to the previously used α particles of 34 MeV/u, the proton-induced reaction is more sensitive to the inner parts of the dipole transition density. Results of this experiment including DWBA calculations will be presented and discussed.
Supported by the DFG (ZI 510/7-1), EURONS, and the Alliance Program of the Helmholtz Association (HA216/EMMI). S.G.P. and M.S. are supported by the Bonn-Cologne Graduate School of Physics and Astronomy.
[1] D. Savran, T. Aumann, and A. Zilges, PPNP 70 (2013) 210
[2] A. Bracco, F.C.L. Crespi, and E.G. Lanza, EPJ A 51 (2015) 99