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Coulomb excitation of 72 30Zn42 |
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| Authors: | S Leenhardt O Sorlin MG Porquet F Azaiez JC Angélique M Belleguic C Borcea C Bourgeois JM Daugas C Donzaud I Deloncle J Duprat A Gillibert S Grévy D Guillemaud-Mueller J Kiener M Lewitowicz SM Lukyanov F Marie NA Orr Yu-E Penionzhkevich F de Oliveira Santos F Pougheon MG Saint-Laurent W Shuying Yu Sobolev JS Winfield |
| Institution: | (1) IPN, IN2P3-CNRS and Université Paris-Sud, F-91406 Orsay Cedex, France, FR;(2) CSNSM, IN2P3-CNRS and Université Paris-Sud, F-91405 Orsay Campus, France, FR;(3) LPC, IN2P3-CNRS, ISMRA and Université de Caen, F-14050 Caen Cedex, France, FR;(4) IFIN-HH, P.O. Box MG-6, 76900 Bucarest-Magurele, Romania, RO;(5) GANIL, B.P. 5027, F-14076 Caen Cedex, France, FR;(6) CEA-Saclay, DAPNIA-SPhN, F-91191 Gif sur Yvette Cedex, France, FR;(7) FLNR, JINR, 141980 Dubna, Moscow region, Russia, RU;(8) GSI, Postfach 110552, D-64200 Darmstadt, Germany, DE |
| Abstract: | The reduced transition probability B(E2: 01 +→ 2+) of 72Zn has been measured for the first time by Coulomb excitation at intermediate energy. The result B(E2: 01 +→ 2+) = 1740±210 e2fm4, corresponds to the deformation parameter β2 of 0.23, in close agreement with expectations derived from the neighboring nucleus 73Zn. A discussion of the evolution of the N = 40 sub-shell closure as a function of Z is presented. Received: 19 December 2001 / Accepted: 14 March 2002 |
| Keywords: | PACS 25 70 De Coulomb excitation – 23 20 -g Electromagnetic transitions |
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