ARIS, Tokyo 2014 Spins, Moments, and Radii of 100-130 Cd by High-Resolution Laser Spectroscopy D. T. Yordanov 1, D. L. Balabanski 2, M. L. Bissell 3, K.

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ARIS, Tokyo 2014 Spins, Moments, and Radii of Cd by High-Resolution Laser Spectroscopy D. T. Yordanov 1, D. L. Balabanski 2, M. L. Bissell 3, K. Blaum 1, I. Budinčević 3, B. Cheal 4, K. T. Flanagan 4, N. Frömmgen 5, G. Georgiev 6, Ch. Geppert 5,7, M. Hammen 5, M. Kowalska 8, K. Kreim 1, A. Krieger 5, R. Neugart 5, G. Neyens 3, W. Nörtershäuser 5,9, J. Papuga 3, M. M. Rajabali 3, R. Sánchez 10, S. Schmidt 9 1 Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, Heidelberg, Germany 2 INRNE, Bulgarian Academy of Science, BG-1784 Sofia, Bulgaria 3 Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium 4 School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK 5 Institut für Kernchemie, Universität Mainz, D Mainz, Germany 6 CSNSM-IN2P3-CNRS, Université de Paris Sud, F Orsay, France 7 Helmholtz Institute Mainz, D Mainz, Germany 8 Organisation Européenne pour la Recherche Nucléaire, CH-1211 Geneva 23, Switzerland 9 GSI Helmholtzzentrum für Schwerionenforschung GmbH, D Darmstadt, Germany Collinear Laser ISOLDE

ARIS, Tokyo g1g 2d2d 3s3s 1h 1g 9/2 1g 7/2 2d 5/2 2d 3/2 3s 1/2 1h 11/2 1h 9/ Spherical Shell Model Z N Cd Nuclear chart

ARIS, Tokyo 2014 Outline Physics interest in the Cd isotopes Laser spectroscopy with bunched beams Frequency quadrupling Shell structure from  and Q moments Charge radii Collinear Laser ISOLDE

ARIS, Tokyo Sn 100 Sn rp process r process more accurate theoretical lifetimes of the N=82 isotones below 129 Ag shell quenching vs. deformation shell effect in the radii Perspectives for laser spectroscopy in the Sn region ground and isomeric state properties of Cd Physics case

ARIS, Tokyo 2014

accumulation release T1T1 T 2 ≈ T 1 / 10 4 ISCOOL - ISOLDE RFQCB COLLAPS 1.) ion beam; 2.) laser; 3.) deflection plates; 4.) post acceleration; 5.) optical detection Bunched-beam fluorescence of Cd Experimental technique

ARIS, Tokyo 2014 accumulation release T1T1 T 2 ≈ T 1 / 10 4 ISCOOL - ISOLDE RFQCB Bunched-beam fluorescence of Cd 5s 2 S 1/2 227 nm, 3×10 8 s -1 5p 2 P 3/2 5p 2 P 1/2 215 nm, 2.8×10 8 s -1 D1D1 D2D2 Cd ion Experimental technique

Laser system for 215nm 860 nm 430 nm 215 nm ARIS, Tokyo 2014

Discovery of a long-lived isomeric state in 129 Cd # counts Isotope shift relative to 114 Cd I. II.III. 129 Cd g.s. + isomer Experimental results

ARIS, Tokyo 2014 Experimental results # counts Isotope shift relative to 114 Cd I. II.III. 129 Cd, (11/2 - ) Discovery of a long-lived isomeric state in 129 Cd

ARIS, Tokyo 2014 Experimental results Discovery of a long-lived isomeric state in 129 Cd # counts Isotope shift relative to 114 Cd I. II.III. 129 Cd, 3/2 +

ARIS, Tokyo 2014 h 11/2 ‹j n |Q|j n › = ‹j|Q|j› 2j+1-2n 2j-1 3/2 + 11/2 - states: extreme shell-model view Phys. Rev. Lett., 110, (2013) Experimental results

ARIS, Tokyo 2014 Phys. Rev. Lett., 110, (2013) Experimental results h 11/2 3/2 + 1/2 + 11/2 - states: extreme shell-model view

ARIS, Tokyo 2014 IAP Summary Measured model independent I, , Q and ‹r 2 › of Cd First direct observation of long-lived isomers in 127, 129 Cd Linear behavior of the h 11/2 Q moments in Cd core polarization from magnetic moments Collinear Laser ISOLDE