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Phys. Rev. C 78, 054605 (2008) [9 pages]

Production of medium-mass neutron-rich nuclei in reactions induced by 136Xe projectiles at 1 A GeV on a beryllium target

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J. Benlliure1,*, M. Fernández-Ordóñez1,†, L. Audouin2, A. Boudard3, E. Casarejos1, J. E. Ducret3, T. Enqvist4,‡, A. Heinz4,§, D. Henzlova4,**, V. Henzl4,**, A. Kelic4, S. Leray3, P. Napolitani2,4,††, J. Pereira1,**, F. Rejmund2,‡‡, M. V. Ricciardi4, K.-H. Schmidt4, C. Schmitt4,a, C. Stéphan2, L. Tassan-Got2, C. Volant3, C. Villagrasa3,b, and O. Yordanov4,c
1Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
2IPN Orsay, Université Paris-Sud 11, CNRS/IN2P3, F-91406 Orsay cedex, France
3DAPNIA/SPhN, DSM-CEA, F-91191 Gif-sur-Yvette cedex, France
4GSI, Planckstrasse 1, D-64291 Darmstadt, Germany

Received 21 July 2008; published 12 November 2008

Production cross sections of medium-mass neutron-rich nuclei obtained in the fragmentation of 136Xe projectiles at 1 A GeV have been measured with the FRagment Separator (FRS) at GSI. The measured cross sections are compared to 238U fission yields and model calculations to determine the optimum reaction mechanism to extend the limits of the chart of the nuclides around the r-process waiting point at N=82.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.054605
DOI:
10.1103/PhysRevC.78.054605
PACS:
25.70.Mn, 29.38.Db, 24.10.Jv

*j.benlliure@usc.es

Present address: CIEMAT, Avd. Complutense, E-28000 Madrid, Spain.

Present address: CUPP project, P.O. Box 22, FIN-86801 Pyhäsalmi, Finland.

§Present address: WNSL, Yale University, New Haven, Connecticut 06511, USA.

**Present address: NSCL, Michigan State University, East Lansing, Michigan 48824, USA.

††Present address: LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3, F-14050 Caen cedex 4, France.

‡‡Present address: GANIL, CEA/DSM-CNRS/IN2P3, BP 55027, F-14076 Caen cedex, France.

aPresent address: Université Lyon I, CNRS/IN2P3, IPNL, F-69622 Villeurbanne cedex, France.

bPresent address: IRSN, BP17, F-92262 Fontenay-aux-Roses cedex, France.

cPresent address: INRNE, 72 Tzarigradsko chausee, BG-1784 Sofia, Bulgaria.