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Dive into the research topics where F. Köck is active.

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Featured researches published by F. Köck.


Physics Letters B | 2000

γ Spectroscopy in the superdeformed minimum of 240Pu

D. Pansegrau; P. Reiter; D. Schwalm; H. Bauer; J. Eberth; D. Gassmann; D. Habs; T. Härtlein; F. Köck; H.G. Thomas

Abstract The γ decay of excited states built on the superdeformed shape isomer 240 f Pu was measured for the first time with an array of EUROBALL CLUSTER detectors in coincidence with delayed fission decays using the 238 U( α ,2n) reaction. The strongest γ transitions can be assigned to the out-of-band decays of three excited superdeformed rotational sequences: A K π =2 − and K π =1 − (2 − ) band with respective bandhead energies of 806.2 keV and 836.0 (846.8) keV decaying to the ground state band of 240 f Pu, and a K π =2(1) band at 1360.9 (1344) keV populating mainly the K π =2 − (806.2 keV) band.


Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields | 2016

Large oblate deformation of69Se proven by measured transition probability

S. Skoda; T. Steinhardt; F. Becker; J. Eberth; S. Freund; U. Hermkens; B. Fiedler; M. Kabadiyski; O. Thelen; H.G. Thomas; Ch. Ender; T. Härtlein; F. Köck; D. Schwalm; A. Jungclaus; K. P. Lieb; D. Kast; C. Teich; T. Servene

SummaryThe large oblate deformation of the69Seg9=2 band was proven by the DSA analysis of the 13/2+ →11/2+ 403 keV transition measured via32S(40Ca, 2pn)69Se at 125 MeV beam energy with six escape suppressed EUROBALL Cluster detectors at ±44°. Applying the model of a rigid axial-symmetric rotor the determined lifetime resulted in ∣β2∣ ɛ [0.24,0.85].


Physical Review C | 1999

Measurement of g factors in 84,86Zr and 87Nb by the recoil distance transient field γ-γ coincidence technique

C. Teich; A. Jungclaus; J Billowes; J. Eberth; H.G. Thomas; V. Fischer; D. Kast; K. P. Lieb; C. Lingk; Ch. Ender; T. Härtlein; F. Köck; D. Schwalm


Physical Review C | 2002

Magnetic and collective rotation in Br-79

R. Schwengner; F. Donau; T. Servene; H. Schnare; J. Reif; G. Winter; L. Käubler; H. Prade; S. Skoda; J. Eberth; H.G. Thomas; F. Becker; B. Fiedler; S. Freund; S. Kasemann; T. Steinhardt; O. Thelen; T. Härtlein; Ch. Ender; F. Köck; P. Reiter; D. Schwalm


European Physical Journal A | 1999

Coincidence Doppler shift lifetime measurements in 73;74 Se and 74 Br using the EUROBALL Cluster cube array

R. Loritz; O. Iordanov; E. Galindo; A. Jungclaus; D. Kast; K. P. Lieb; C. Teich; F. Cristancho; Ch. Ender; T. Härtlein; F. Köck; D. Schwalm


European Physical Journal A | 1998

Conversion–electron gamma–ray coincidence spectroscopy of superdeformed

B. Aengenvoort; W. Korten; H. Hübel; S. Chmel; A. Görgen; U.J. van Severen; W. Pohler; R. Zinken; T. Härtlein; Ch. Ender; F. Köck; P. Reiter; D. Schwalm; F. Schindler; J. Gerl; R. Schubart; F. Azaiez; S. Bouneau; J. Duprat; I. Deloncle


Physical Review C | 1993

^{135}

Hong-jun Xie; Ch. Ender; J. Gerl; Th. Härtlein; F. Köck; Th. Kröll; P. Reiter; D. Schwalm; P. Thirolf; K. Vetter; A. Wieswesser; H. J. Wollersheim


European Physical Journal A | 1999

Nd

C Borcan; H Schnare; R. Schwengner; L Kaubler; Hg Ortlepp; F Donau; H. Grawe; M Gorska; S. Skoda; J. Eberth; T. Härtlein; F. Köck; D. Pansegrau; M Moszynski; D Wolski; M. Weiszflog; A. Axelsson; Napoli; A. Gadea; R. Wadsworth; A. N. Wilson; W. Andrejtscheff


Physical Review C | 1997

Coulomb excitation of the [ital K][sup [pi]]=8[sup [minus]] isomer in [sup 178]Hf

C. Lingk; A. Jungclaus; D. Kast; K. P. Lieb; C. Teich; M. Weiszflog; Ch. Ender; T. Härtlein; F. Köck; D. Schwalm; A. Dewald; J. Eberth; R. Peusquens; H.G. Thomas; M. Górska; H. Grawe


European Physical Journal A | 1999

First identification of excited states in the N = Z nucleus Br-70

C Borcan; H Schnare; R. Schwengner; L Kaubler; Hg Ortlepp; F Donau; H. Grawe; M Gorska; S. Skoda; J. Eberth; T. Härtlein; F. Köck; D. Pansegrau; M Moszynski; D Wolski; M. Weiszflog; A. Axelsson; D. R. Napoli; A. Gadea; R. Wadsworth; A. N. Wilson; W. Andrejtscheff

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J. Eberth

University of Cologne

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S. Skoda

University of Cologne

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D. Kast

University of Göttingen

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K. P. Lieb

University of Göttingen

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R. Schwengner

Helmholtz-Zentrum Dresden-Rossendorf

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