A. Bürger
University of Oslo
28 Papers
142 Citations
A. Bürger is an academic researcher from University of Oslo. The author has contributed to research in topics: Neutron & Excited state. The author has an hindex of 12, co-authored 28 publications. Previous affiliations of A. Bürger include University of Milan.
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Papers
Onset of collectivity in neutron-rich Fe isotopes: Toward a new island of inversion?
J. Ljungvall,Andreas Görgen,A. Obertelli,W. Korten,Emyr Clement,A. Bürger,J. P. Delaroche,A. Dewald,A. Gadea,L. Gaudefroy,Michel Girod,M. Hackstein,J. Libert,D. Mengoni,F. Nowacki,T. Pissulla,A. Poves,F. Recchia,M. Rejmund,W. Rother,E. Sahin,C. Schmitt,A. Shrivastava,Kamila Sieja,J. J. Valiente-Dobón,K. O. Zell,M. Zielińska +26 more
TL;DR: In this paper, the lifetimes of the first excited 2+ states in 62Fe and 64Fe have been measured for the first time using the recoil distance Doppler shift technique, at GANIL, where a 238U beam of 6.5 AMeV impinged on 64Ni target, and the target like products were slowed down by a degrader foil positioned at micrometer distance downstream of the target and identified in the VAMOS spectrometer on an event by event basis.
Measurement of the sign of the spectroscopic quadrupole moment for the 2(1)(+) state in Se-70: No evidence for oblate shape
A. M. Hurst,P. A. Butler,D. G. Jenkins,P. Delahaye,Fredrik Wenander,F. Ames,C. J. Barton,T. Behrens,A. Bürger,Joakim Cederkäll,Emyr Clement,T. Czosnyka,Thomas Davinson,G. de Angelis,J. Eberth,Andreas Ekström,S. Franchoo,Georgi P. Georgiev,Andreas Görgen,R.-D. Herzberg,Mark Huyse,O. Ivanov,J. Iwanicki,G. D. Jones,P. Kent,Ulli Köster,Th. Kröll,R. Krücken,A. C. Larsen,M. Nespolo,M. Pantea,E. S. Paul,Marina Petri,Heiko Scheit,T. Sieber,Sunniva Siem,J. F. Smith,A. Steer,I. Stefanescu,N. U. H. Syed,J. Van de Walle,P. Van Duppen,R. Wadsworth,N. Warr,Dirk Weisshaar,M. Zielinska +45 more
TL;DR: Experimental evidence is presented here for a prolate shape for the first 2+ state in 70Se, reopening the question over whether there are, as reported earlier, deformed oblate shapes near to the ground state in the light selenium isotopes.
Level density and thermodynamic properties of dysprosium isotopes
Hilde-Therese Nyhus,Sunniva Siem,Magne Guttormsen,A. C. Larsen,A. Bürger,N. U. H. Syed,H. K. Toft,Gry Merete Tveten,Alexander Voinov +8 more
TL;DR: In this paper, a phase transition from the pair-correlated state at low energies to a less correlated or uncorrelated state is studied in both micro-canonical and canonical ensemble theories.
34
Radiative strength functions inDy163,164
Hilde-Therese Nyhus,Sunniva Siem,Magne Guttormsen,A. C. Larsen,A. Bürger,N. U. H. Syed,Gry Merete Tveten,Alexander Voinov +7 more
TL;DR: In this paper, the scissors mode of the pygmy M1 resonance (the scissors mode) was investigated using the Oslo method on data from pickup reaction and inelastic scattering.
30
Evolution from spherical single-particle structure to stable triaxiality at high spins in Nd-140
C. M. Petrache,M. Fantuzi,G. LoBianco,D. Mengoni,A. Neusser-Neffgen,H. Hübel,A. Al-Khatib,P. Bringel,A. Bürger,N. Nenoff,G. Schönwasser,Amrendra K. Singh,Ingemar Ragnarsson,G.B. Hagemann,B. Herskind,D. R. Jensen,G. Sletten,P. Fallon,Andreas Görgen,P. Bednarczyk,D. Curien,Goutam Gangopadhyay,A. Korichi,A. Lopez-Martens,B. V. T. Rao,T. S. Reddy,Nirmal Singh +26 more
TL;DR: The level structure of Nd-140(60)80 has been established up to spin 48 by in-beam gamma-ray spectroscopy by use of the Zr-96(Ca-48, 4n) reaction as mentioned in this paper.