Lifetime measurements on fission fragments in the A ∼ 100 region

L. Grente; M.-D. Salsac; W. Korten; A. Görgen; T. W. Hagen; T. Braunroth; B. Bruyneel; I. Celikovic; E. Clément; O. Delaune; A. Dijon; A. Drouart; S. Ertürk; F. Farget; G. de France; A. Gottardo; M. Hackstein; B. Jacquot; J. Libert; J. Litzinger; J. Ljungvall; C. Louchart; C. Michelagnoli; D.R. Napoli; A. Navin; N. Pillet; A. Pipidis; F. Recchia; M. Rejmund; W. Rother; E. Sahin; C. Schmitt; S. Siem; B. Sulignano; J.J. Valiente-Dobon; K.O. Zell

doi:10.1051/epjconf/20136201002

All issues

Volume 62 (2013)

EPJ Web of Conferences, 62 (2013) 01002

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 62, 2013 Fission 2013 – Fifth International Workshop on Nuclear Fission and Fission Product Spectroscopy


Article Number		01002
Number of page(s)		6
Section		Spectroscopy of Fission Fragments
DOI		https://doi.org/10.1051/epjconf/20136201002
Published online		13 December 2013

EPJ Web of Conferences 62, 01002 (2013)
https://doi.org/10.1051/epjconf/20136201002

Lifetime measurements on fission fragments in the A ∼ 100 region

L. Grente¹^a, M.-D. Salsac¹, W. Korten¹, A. Görgen², T. W. Hagen², T. Braunroth³, B. Bruyneel¹, I. Celikovic⁴^,5, E. Clément⁴, O. Delaune⁴, A. Dijon⁴, A. Drouart¹, S. Ertürk⁶, F. Farget⁴, G. de France⁴, A. Gottardo⁷, M. Hackstein³, B. Jacquot⁴, J. Libert⁸, J. Litzinger³, J. Ljungvall⁹, C. Louchart¹, C. Michelagnoli⁷, D.R. Napoli⁷, A. Navin⁴, N. Pillet⁸, A. Pipidis⁷, F. Recchia⁷, M. Rejmund⁴, W. Rother³, E. Sahin⁷, C. Schmitt⁴, S. Siem², B. Sulignano¹, J.J. Valiente-Dobon⁷ and K.O. Zell³

¹ CEA Saclay, IRFU/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
² Department of Physics, University of Oslo, 0316 Oslo, Norway
³ Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
⁴ Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Boulevard H. Becquerel, 14706 Caen, France
⁵ Institute of Nuclear Sciences “VINCA”, University of Belgrade, 11000 Belgrade, Serbia
⁶ Nigde University, Science Faculty, Nigde, Turkey
⁷ INFN, Laboratori Nazionali di Legnaro, Legnaro, Italy
⁸ CEA, DAM, DIF, 91297 Arpajon, France
⁹ CSNSM, CNRS/IN2P3 and Université Paris Sud, 91405 Orsay, France

^a e-mail: lucie.grente@cea.fr

Published online: 13 December 2013

Abstract

Lifetimes of first 4⁺ and 6⁺ states have been measured in neutron-rich isotopes of Zr, Mo, Ru and Pd using the recoil distance Doppler shift method at GANIL. The nuclei were produced through a fusion-fission reaction in inverse kinematics. The fission fragments were fully identified in the large-acceptance VAMOS spectrometer and γ-rays were detected in coincidence with the EXOGAM germanium array. Lifetimes of excited states in the range of 1–100 ps were measured with the Cologne plunger. Preliminary lifetime results are presented as well as a discussion on the evolution of the collectivity in this region.

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