Neutron-deficient N approximate to 126 nuclei produced in U-238 fragmentation: Population of high-spin states

Podolyak, Z, Gerl, J, Hellstrom, M, Becker, F, Gladnishki, KA, Gorska, M, Kelic, A, Kopatch, Y, Mandal, S, Regan, PH, Schmidt, KH, Walker, PM, Wollersheim, HJ, Banu, A, Benzoni, G, Boardman, H, Casarejos, E, Ekman, J, Geissel, H, Grawe, H, Hohn, D, Kojouharov, I, Leske, J, Lozeva, R, Mineva, MN, Neyens, G, Page, RD, Pearson, CJ, Portillo, M, Rudolph, D, Saito, N, Schaffner, H, Sohler, D, Summerer, K, Valiente-Dobon, JJ, Wheldon, C, Weick, H and Winkler, M (2006) Neutron-deficient N approximate to 126 nuclei produced in U-238 fragmentation: Population of high-spin states

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Abstract

The population of metastable states produced in relativistic-energy fragmentation of a U-238 beam has been measured. For states with high angular momentum, I=17h and I=21.5h, a higher population than expected has been observed, with the discrepancy increasing with angular momentum. By considering two sources for the angular momentum, related to single-particle and collective motions, a much improved description of the experimental results can be obtained. In addition, new results on the structure of Fr-208, Ra-211 and Ac-216 are reported.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords:	angular momentum, isomeric ratio, projectile fragmentation, RELATIVISTIC HEAVY-IONS, ISOTOPES, MOMENTUM, DECAY
Divisions:	Faculty of Engineering and Physical Sciences > Physics
Depositing User:	Mr Adam Field
Date Deposited:	27 May 2010 14:07
Last Modified:	23 Sep 2013 18:26
URI:	http://epubs.surrey.ac.uk/id/eprint/232

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