A
A. Krieger
Researcher at University of Mainz
Publications - 35
Citations - 995
A. Krieger is an academic researcher from University of Mainz. The author has contributed to research in topics: Spectroscopy & Hyperfine structure. The author has an hindex of 16, co-authored 35 publications receiving 862 citations. Previous affiliations of A. Krieger include Technische Universität Darmstadt.
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Journal ArticleDOI
Nuclear spins and magnetic moments of 71,73,75Cu: inversion of π2p3/2 and π1∫5/2 levels in75Cu
K. T. Flanagan,P. Vingerhoets,M. Avgoulea,J. Billowes,Mark Bissell,Klaus Blaum,Bradley Cheal,M. De Rydt,V. N. Fedosseev,D. H. Forest,Ch Geppert,Ch Geppert,Ulli Köster,Magda Kowalska,J. Krämer,K. L. Kratz,A. Krieger,E. Mané,B. A. Marsh,T. Materna,L. Mathieu,P. L. Molkanov,Rainer Neugart,Gerda Neyens,Wilfried Nörtershäuser,Wilfried Nörtershäuser,M. D. Seliverstov,M. D. Seliverstov,Olivier Serot,Michael Schug,M. A Sjoedin,Jirina Stone,Jirina Stone,N. J. Stone,N. J. Stone,H. Henry Stroke,G. Tungate,Deyan T. Yordanov,Yu. M. Volkov +38 more
TL;DR: In this article, the predicted inversion between the pi2p3/2 and pi1f5/2 nuclear states in the nu(g)9/2 midshell was confirmed by using a combination of in-source laser spectroscopy and collinear laser spectrometers on the ground states of 71,73,75Cu, which measured the nuclear spin and magnetic moments.
Journal ArticleDOI
Test of Time Dilation Using Stored Li + Ions as Clocks at Relativistic Speed
B. Botermann,Dennis Bing,Christopher Geppert,Gerald Gwinner,Theodor W. Hänsch,G. Huber,Sergei Karpuk,A. Krieger,T. Kuhl,Wilfried Nörtershäuser,Wilfried Nörtershäuser,C. Novotny,S. Reinhardt,Rodolfo Sánchez,Dirk Schwalm,Thomas Stöhlker,Andreas Wolf,Guido Saathoff +17 more
TL;DR: The concluding result from an Ives-Stilwell-type time dilation experiment using 7Li+ ions confined at a velocity of β=v/c=0.338 in the storage ring ESR at Darmstadt is verified and interpreted within Lorentz invariance violating test theories.
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MATS and LaSpec: High-precision experiments using ion traps and lasers at FAIR
Daniel Rodríguez,Klaus Blaum,Wilfried Nörtershäuser,M. Ahammed,A. Algora,Georges Audi,Juha Äystö,D. Beck,Michaël Bender,J. Billowes,Michael Block,Christine Böhm,Georg Bollen,M. Brodeur,T. Brunner,Bruce A. Bushaw,R. B. Cakirli,Paul Campbell,D. Cano-Ott,G. Cortes,J. R. Crespo López-Urrutia,P. Das,Andreas Dax,A. De,P. P. J. Delheij,T. Dickel,Jens Dilling,Klaus Eberhardt,Sergey Eliseev,S. Ettenauer,Kieran Flanagan,Rafael Ferrer,J. E. García-Ramos,E. Gartzke,Hans Geissel,Sebastian George,Christopher Geppert,M.B. Gómez-Hornillos,Yu. I. Gusev,Dietrich Habs,Paul-Henri Heenen,S. Heinz,F. Herfurth,Alexander Herlert,Matthias Hobein,G. Huber,Marc Huyse,C. Jesch,Ari Jokinen,Oliver Kester,Jens Ketelaer,Veli Kolhinen,I. Koudriavtsev,Magdalena Kowalska,J. Krämer,Susanne Kreim,A. Krieger,T. Kühl,Antonio M. Lallena,Alain Lapierre,F. Le Blanc,Yu. A. Litvinov,David Lunney,T. Martinez,Gerrit Marx,M. Matos,E. Minaya-Ramirez,Iain Moore,Sz. Nagy,S. Naimi,Dennis Neidherr,Dmitrii Nesterenko,Gerda Neyens,Y. Novikov,M. Petrick,Wolfgang R. Plaß,A. Popov,Wolfgang Quint,A. Ray,Paul-Gerhard Reinhard,Julia Repp,C. Roux,B. Rubio,Rodolfo Sánchez,Birgit Schabinger,C. Scheidenberger,D. H. Schneider,R. Schuch,S. Schwarz,Lutz Schweikhard,M. D. Seliverstov,Andreas Solders,Markus Suhonen,J. Szerypo,J. L. Tain,P. G. Thirolf,Joachim Ullrich,P. Van Duppen,Andrey Vasiliev,G. Vorobjev,C. Weber,Klaus Wendt,M. Winkler,Deyan T. Yordanov,F. Ziegler +104 more
TL;DR: In this article, the authors proposed a method for high-accuracy mass measurements of the shortest-lived isotopes and decay studies at the FAIR facility using an electron beam ion trap for charge breeding, ion traps for beam preparation, and a high-precision Penning trap system for mass measurements and decay analysis.
Journal ArticleDOI
Spins, Electromagnetic Moments, and Isomers of 107-129Cd
Deyan T. Yordanov,Deyan T. Yordanov,D. L. Balabanski,Jacek Bieron,Mark Bissell,Klaus Blaum,I. Budinčević,Stephan Fritzsche,N. Frömmgen,Georgi P. Georgiev,Ch. Geppert,M. Hammen,Magda Kowalska,K. Kreim,A. Krieger,Rainer Neugart,Wilfried Nörtershäuser,J. Papuga,Stefan E. Schmidt +18 more
TL;DR: The neutron-rich isotopes of cadmium up to the N=82 shell closure have been investigated by high-resolution laser spectroscopy and one essential feature of the spherical shell model is unambiguously confirmed by a linear increase of the 11/2(-) quadrupole moments.
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Nuclear Charge Radius of 12Be
A. Krieger,Klaus Blaum,Mark Bissell,N. Frömmgen,Ch. Geppert,M. Hammen,K. Kreim,Magda Kowalska,J. Krämer,T. Neff,Rainer Neugart,Gerda Neyens,Wilfried Nörtershäuser,C. Novotny,R. Sánchez,Deyan T. Yordanov +15 more
TL;DR: In this paper, the nuclear charge radius of the one-neutron halo isotope Be was determined using the technique of collinear laser spectroscopy on the $2{s} 1/2]-ensuremath{\rightarrow}2{p}{1/2,3/2}$ transition in the ${\mathrm{Be}}+}$ ion.