Within the RISING (Rare ISotope INvestigations @ GSI) Collaboration at GSI, g factor measurements have been performed on isomeric states in neutron-rich isotopes approaching 132Sn and in the neutron deficient Pb-region (the g-RISING campaign). We present the experimental technique and some typical aspects related to such studies on relativistic beams selected with the FRS fragment separator. First results are presented for the (19/2+) 4.5 μs isomeric state in 127Sn, which has been produced by means of fission of a relativistic 238U beam on the one hand, and by the fragmentation of a relativistic 136Xe beam on the other hand. Spinalignment has been observed in both reactions. It was the first time that spin-alignment has been established in a relativistic fission reaction

g factor measurements on relativistic isomeric beams produced by fragmentation and U-fission : the g-rising project at GSI / G. Neyens, L. Atanasova, D.L. Balabanski, F. Becker, P. Bednarczyk, L. Caceres, P. Doornenbal, J. Gerl, M. Gorska, J. Grebosz, M. Hass, G. Ilie, N. Kurz, I. Kojouharov, R. Lozeva, A. Maj, M. Pfuetzner, S. Pietri, Z. Podolyak, W. Prokopowicz, T.R. Saitoh, H. Schaffner, G. Simpson, N. Vermeulen, E. Werner Malento, J. Walker, H.J. Wollersheim, D. Bazzacco, G. Benzoni, A. Blazhev, N. Blasi, A. Bracco, C. Brandau, F. Camera, S.K. Chamoli, S. Chmel, F.C.L. Crespi, J.M. Daugas, M. De Rydt, P. Detistov, C. Fahlander, E. Farnea, G. Georgiev, K. Gladnishki, R. Hoischen, M. Ionescu Bujor, A. Iordachescu, J. Jolie, A. Jungclaus, M. Kmiecik, A. Krasznahorkay, R. Kulessa, S. Lakshmi, G. Lo Bianco, S. Mallion, K. Mazurek, W. Meczynski, D. Montanari, S. Myalsky, O. Perru, D. Rudolph, G. Rusev, A. Saltarelli, R. Schwengner, J. Styczen, K. Turzo, J.J. Valiente Dobon, O. Wieland, M. Zieblinski. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - 38:4(2007), pp. 1237-1247.

g factor measurements on relativistic isomeric beams produced by fragmentation and U-fission : the g-rising project at GSI

G. Benzoni;A. Bracco;F. Camera;F.C.L. Crespi;D. Montanari;
2007

Abstract

Within the RISING (Rare ISotope INvestigations @ GSI) Collaboration at GSI, g factor measurements have been performed on isomeric states in neutron-rich isotopes approaching 132Sn and in the neutron deficient Pb-region (the g-RISING campaign). We present the experimental technique and some typical aspects related to such studies on relativistic beams selected with the FRS fragment separator. First results are presented for the (19/2+) 4.5 μs isomeric state in 127Sn, which has been produced by means of fission of a relativistic 238U beam on the one hand, and by the fragmentation of a relativistic 136Xe beam on the other hand. Spinalignment has been observed in both reactions. It was the first time that spin-alignment has been established in a relativistic fission reaction
Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
2007
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/41898
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