First results from the stopped beam isomer rising campaign at GSI

Pietri, S.; Regan, P.H.; Podolyak, Z.; Rudolph, D.; Gorska, M.; Jungclaus, A.; Pfuetzner, M.; Garnsworthy, A.B.; Steer, S.J.; Caceres, L.; Werner Malento, E.; Hoischen, R.; Gerl, J.; Kojouharov, I.; Schaffner, H.; Wollersheim, H.J.; Becker, F.; Bednarczyk, P.; Doornenbal, P.; Geissel, H.; Grebosz, J.; Kelic, A.; Kurz, N.; Montes, F.; Prokopowicz, W.; Saito, T.; Tashenov, S.; Heinz, A.; Kurtukian Nieto, T.; Benzoni, G.; Hellstroem, M.; Andersson, L.L.; Atanasova, L.; Balabanski, D.L.; Bentley, M.A.; Blank, B.; Blazhev, A.; Brandau, C.; Brown, J.R.; Bruce, A.M.; Camera, F.; Catford, W.N.; Cullen, I.J.; Dombradi, Z.; Estevez, E.; Fahlander, C.; Gelletly, W.; Ilie, G.; Johansson, E.K.; Jolie, J.; Jones, G.A.; Kmiecik, M.; Kondev, F.G.; Lalkovski, S.; Liu, Z.; Maj, A.; Myalski, S.; Shizuma, T.; Simons, A.J.; Schwertel, S.; Walker, P.M.; Wieland, O.

The first results from a series of experiments focused on the study of the internal structure of nuclei at the extremes of N:Z ratio using isomer spectroscopy are reported. These experiments represent the first of the Stopped Beam section of the Rare Isotopes Investigations at GSI (RISING) project. Exotic nuclei were synthesized using relativistic projectile fragmentation of similar to 500 -> 1000 MeV/u beams of Ag-107, Pb-208, Xe-136 and Ni-58, or fission of 750 MeV/u U-238 provided by the SIS synchrotron at GSI. A detailed description of the RISING stopped beam set up is given, together with a report of the performance of the associated gamma-ray spectrometer array. Selected results of the first experimental campaign are presented together with a discussion on the use of isomeric spectroscopy to study GeV range nuclear fragmentation. Details on future research plans of this collaboration are also outlined.

First results from the stopped beam isomer rising campaign at GSI / S. Pietri, P.H. Regan, Z. Podolyak, D. Rudolph, M. Gorska, A. Jungclaus, M. Pfuetzner, A.B. Garnsworthy, S.J. Steer, L. Caceres, E. Werner Malento, R. Hoischen, J. Gerl, I. Kojouharov, H. Schaffner, H.J. Wollersheim, F. Becker, P. Bednarczyk, P. Doornenbal, H. Geissel, J. Grebosz, A. Kelic, N. Kurz, F. Montes, W. Prokopowicz, T. Saito, S. Tashenov, A. Heinz, T. Kurtukian-Nieto, G. Benzoni, M. Hellstroem, L.-L. Andersson, L. Atanasova, D.L. Balabanski, M.A. Bentley, B. Blank, A. Blazhev, C. Brandau, J.R. Brown, A.M. Bruce, F. Camera, W.N. Catford, I.J. Cullen, Z. Dombradi, E. Estevez, C. Fahlander, W. Gelletly, G. Ilie, E.K. Johansson, J. Jolie, G.A. Jones, M. Kmiecik, F.G. Kondev, S. Lalkovski, Z. Liu, A. Maj, S. Myalski, T. Shizuma, A.J. Simons, S. Schwertel, P.M. Walker, O. Wieland. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - 38:4(2007), pp. 1255-1264.