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Dive into the research topics where A. Görgen is active.

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Featured researches published by A. Görgen.


PROTON EMITTING NUCLEI AND RELATED TOPICS: International Conference‐PROCON#N#2007 | 2007

Spectroscopy of the very neutron‐deficient 189Bi

C. Dossat; Ch. Theisen; A. Bürger; E. Clément; A. Görgen; W. Korten; S. Eeckhaudt; Peter J. H. Jones; T. Grahn; P. T. Greenlees; R. Julin; S. Juutinen; M. E. Leino; A.-P. Leppänen; M. Nyman; J. Pakarinen; P. Rahkila; J. Sarén; C. Scholey; J. Sorri; J. Uusitalo; M. Venhart

The neutron‐deficient isotope 189Bi has been studied at the University of Jyvaskyla using alpha‐decay, isomer and prompt gamma‐ray spectroscopy. The structure of 189Bi can be understood by the coupling of an unpaired proton to the 188Pb core, in which spherical, prolate, and oblate shapes were found to coexist. Improved data on alpha‐decay and prompt gamma‐ray spectroscopy have been obtained, giving further insight into the shape coexistence phenomenon in the neutron‐deficient lead region.


FRONTIERS IN NUCLEAR STRUCTURE, ASTROPHYSICS, AND REACTIONS: FINUSTAR#N#2 | 2008

Spectroscopy of odd‐proton nuclei in the region of 254No

S. Ketelhut; P. T. Greenlees; A. Chatillon; E. Bouchez; P. A. Butler; E. Clément; O. Dorvaux; S. Eeckhaudt; B. J. P. Gall; A. Görgen; T. Grahn; R.-D. Herzberg; F. P. Heβberger; A. Hürstel; Peter J. H. Jones; R. Julin; S. Juutinen; H. Kettunen; F. Khalfallah; W. Korten; Y. Le Coz; M. E. Leino; A.-P. Leppänen; S. Moon; P. Nieminen; M. Nyman; J. Pakarinen; J. Perkowski; P. Rahkila; M. Rousseau

Two rotational bands have been found in the transfermium nuclei 251Md and 255Lr, the latter being the heaviest nucleus so far studied in‐beam. Both are assigned to a [521]1/2− Nilsson state by comparison to theory. The experiments have been carried out in the Accelerator Laboratory of the University of Jyvaskyla (JYFL), where the array of germanium detectors JUROGAM was used in conjunction with the recoil‐seperator RITU and the focal‐plane setup GREAT for gamma‐spectroscopic studies.


FRONTIERS IN NUCLEAR STRUCTURE, ASTROPHYSICS, AND REACTIONS: FINUSTAR#N#2 | 2008

Probing collectivity in the vicinity of neutron deficient Pb nuclei

T. Grahn; A. Dewald; M. B. Gomez Hornillos; P. T. Greenlees; A. Görgen; K. Helariutta; J. Jolie; P. Jones; R. Julin; S. Juutinen; S. Ketelhut; R. Krücken; T. Kröll; M. Leino; J. Ljungvall; P. Maierbeck; B. Melon; M. Nyman; R. D. Page; A. Petts; Th. Pissulla; P. Rahkila; J. Sarén; C. Scholey; J. Sorri; J. Uusitalo; R. Wadsworth; M. Zielińska

A series of recoil distance Doppler‐shift lifetime measurements have been carried out to probe collectivity and configuration mixing of different shapes in the vicinity of neutron mid‐shell Pb nuclei. Lifetime measurements of 186Pb and 194Po, the first ever utilizing the recoil‐decay tagging method, probed the collectivity of coexisting prolate and oblate shapes in this region. Futher lifetime measurements of excited states in 180Hg, 182Hg and 196Po have been carried out.


European Physical Journal A | 2006

Spectroscopy and single-particle structure of the odd- Z heavy elements 255Lr, 251Md and 247Es

A. Chatillon; Ch. Theisen; P. T. Greenlees; G. Auger; J. E. Bastin; E. Bouchez; B. Bouriquet; J.M. Casandjian; R. Cee; E. Clément; R. Dayras; R. de Toureil; S. Eeckhaudt; A. Görgen; T. Grahn; S. Grévy; K. Hauschild; R-D Herzberg; P. J. C. Ikin; G. D. Jones; P. M. Jones; R. Julin; S. Juutinen; H. Kettunen; A. Korichi; W. Korten; Y. Le Coz; M. Leino; A. Lopez-Martens; S. M. Lukyanov


Physical Review Letters | 2007

Observation of Rotational Band in the Odd-Z Transfermium Nucleus 251/101Md

A. Chatillon; Ch. Theisen; E. Bouchez; P. A. Butler; E. Clément; O. Dorvaux; S. Eeckhaudt; B. J. P. Gall; A. Görgen; T. Grahn; P. T. Greenlees; R.-D. Herzberg; F. P. Hessberger; A. Hürstel; G. D. Jones; P. M. Jones; R. Julin; S. Juutinen; H. Kettunen; F. Khalfallah; W. Korten; Y. Le Coz; M. Leino; A.-P. Leppänen; P. Nieminen; J. Pakarinen; J. Perkowski; P. Rahkila; M. Rousseau; C. Scholey


Nuclear Physics | 2008

Lifetimes of intruder states in 186Pb, 188Pb and 194Po

T. Grahn; A. Dewald; O. Möller; R. Julin; Cornelius Beausang; S. Christen; I. G. Darby; S. Eeckhaudt; P. T. Greenlees; A. Görgen; K. Helariutta; J. Jolie; P. M. Jones; S. Juutinen; H. Kettunen; Th. Kröll; R. Krücken; Y. Le Coz; M. Leino; A.-P. Leppänen; P. Maierbeck; D. A. Meyer; B. Melon; P. Nieminen; M. Nyman; R. D. Page; J. Pakarinen; P. Petkov; P. Rahkila; B. Saha


Nuclear Physics | 2004

Shape coexistence in krypton isotopes studied through coulomb excitation of radioactive krypton ion beams

W. Korten; E. Bouchez; E. Clément; A. Chatillon; A. Görgen; Y. Le Coz; Ch. Theisen; J. Wilson; J.M. Casandjian; G. Sletten; T. Czosnyka; J. Iwanicki; M. Zielinska; C. Andreoiu; P. A. Butler; R.-D. Herzberg; D. Jenkins; G. D. Jones; F. Becker; J. Gerl; W. N. Catford; C. Timis


Nuclear Physics | 2005

Investigation of heavy N∼Z nuclei using energetic radioactive ion beams

W. Korten; E. Clément; E. Bouchez; A. Chatillon; A. Görgen; Y. Le Coz; Ch. Theisen; J.M. Casandjian; G. Sletten; T. Czosnyka; J. Iwanicki; M. Zielinska; F. Becker; J. Gerl; W. N. Catford; C. Timis; P. A. Butler; C. Andreoiu


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

A new device for combined Coulomb excitation and isomeric conversion electron spectroscopy with fast fragmentation beams

E. Clément; A. Görgen; W. Korten; A. Bürger; A. Chatillon; Y. Le Coz; Ch. Theisen; M. Zielińska; B. Blank; P. J. Davies; S.P. Fox; J. Gerl; G. Georgiev; S. Grévy; J. Iwanicki; D. G. Jenkins; F. Johnston-Theasby; P. Joshi; I. Matea; P. Napiorkowski; F. de Oliveira Santos; M. G. Pellegriti; R. Wadsworth


European Physical Journal-special Topics | 2007

Collectivity in neutron-deficient Pb and Po nuclei

T. Grahn; A. Dewald; O. Möller; R. Julin; Cornelius Beausang; S. Christen; I. G. Darby; S. Eeckhaudt; P. T. Greenlees; A. Görgen; K. Helariutta; J. Jolie; H. Kettunen; Th. Kröll; R. Krücken; P. M. Jones; S. Juutinen; Y. Le Coz; M. Leino; A.-P. Leppänen; P. Maierbeck; B. Melon; D. A. Meyer; P. Nieminen; M. Nyman; R. D. Page; J. Pakarinen; P. Petkov; P. Rahkila; B. Saha

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P. T. Greenlees

University of Jyväskylä

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R. Julin

University of Jyväskylä

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S. Eeckhaudt

University of Jyväskylä

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M. Leino

University of Jyväskylä

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