DPG Phi
Verhandlungen
Verhandlungen
DPG

Bochum 2009 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

HK: Fachverband Hadronen und Kerne

HK 67: Poster Session

HK 67.7: Poster

Donnerstag, 19. März 2009, 14:00–16:00, Audi-Max

EGoS - an observable for centrifugal stretching — •Jacob Beller1, Norbert Pietralla1, and Thomas Pissulla21IKP TU Darmstadt — 2IKP Koeln

A systematic investigation of the ground-state bands of deformed nuclei using EGoS-plots (Eγ over Spin = Eγ(JJ−2)/J) has been done. Many nuclei show a maximum in the EGoS-plot, which is neither expected for rigid rotors nor for vibrational nuclei. Therefore, two potentials within the geometric collective model, namely the Confined-β-Soft rotor model (CBS) [1] and the Davidson-potential [2], were used to describe the data. Good agreement between the CBS and experimental data is achieved for all nuclei, while the Davidson-potential and the data differ near the critical point solution X(5) [3]. Here the wavefunctions obtained from the Davidson-potential show stronger centrifugal stretching than the CBS-wavefunctions in disagreement with the data.

We conclude that EGoS-plots show a particular and easy-to-obtain sensitivity to the phenomenon of centrifugal stretching.

[1] N. Pietralla and O.M. Gorbachenko, Phys. Rev. C 70, 011303(R) (2004)

[2] P.M. Davidson, Proc. R. Soc. London, Ser. A 135, 459 (1932)

[3] F. Iachello, Phys. Rev. Lett. 85, 3580 (2001)

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2009 > Bochum