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Angular Momentum Population in the Projectile Fragmentation of 238U at 750 MeV/nucleon

Gladnishki, KA; Podolyak, Z; Regan, PH; Gerl, J; Hellström, Margareta LU ; Kopatch, Y; Mandal, S; Gorska, M; Page, RD and Wollersheim, HJ, et al. (2004) In Physical Review C (Nuclear Physics) 69(2).
Abstract
A systematic study of the population probabilities of nanosecond and microsecond isomers produced following the projectile fragmentation of U-238 at 750 MeV/nucleon has been undertaken at the SIS/FRS facility at GSI. Approximately 15 isomeric states in neutron-deficient nuclei around A similar to 190 were identified and the corresponding. isomeric ratios determined. The results are compared with a model based on the statistical abrasion-ablation description of relativistic fragmentation and simple assumptions concerning gamma cascades in the final nucleus (sharp cutoff). This model represents an upper limit for the population of isomeric states in relativistic projectile fragmentation. When the decay properties of the states above the... (More)
A systematic study of the population probabilities of nanosecond and microsecond isomers produced following the projectile fragmentation of U-238 at 750 MeV/nucleon has been undertaken at the SIS/FRS facility at GSI. Approximately 15 isomeric states in neutron-deficient nuclei around A similar to 190 were identified and the corresponding. isomeric ratios determined. The results are compared with a model based on the statistical abrasion-ablation description of relativistic fragmentation and simple assumptions concerning gamma cascades in the final nucleus (sharp cutoff). This model represents an upper limit for the population of isomeric states in relativistic projectile fragmentation. When the decay properties of the states above the isomer are taken into account, as opposed to the sharp cutoff approximation, a good agreement between the experimental and calculated angular momentum population is obtained. (Less)
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Physical Review C (Nuclear Physics)
volume
69
issue
2
publisher
American Physical Society
external identifiers
  • wos:000220491300047
  • scopus:1842843103
ISSN
0556-2813
DOI
10.1103/PhysRevC.69.024617
language
English
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yes
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5610b6a3-0902-4cb3-9ff0-1fb20376dea5 (old id 283222)
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2007-08-02 13:42:17
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@article{5610b6a3-0902-4cb3-9ff0-1fb20376dea5,
  abstract     = {A systematic study of the population probabilities of nanosecond and microsecond isomers produced following the projectile fragmentation of U-238 at 750 MeV/nucleon has been undertaken at the SIS/FRS facility at GSI. Approximately 15 isomeric states in neutron-deficient nuclei around A similar to 190 were identified and the corresponding. isomeric ratios determined. The results are compared with a model based on the statistical abrasion-ablation description of relativistic fragmentation and simple assumptions concerning gamma cascades in the final nucleus (sharp cutoff). This model represents an upper limit for the population of isomeric states in relativistic projectile fragmentation. When the decay properties of the states above the isomer are taken into account, as opposed to the sharp cutoff approximation, a good agreement between the experimental and calculated angular momentum population is obtained.},
  articleno    = {024617},
  author       = {Gladnishki, KA and Podolyak, Z and Regan, PH and Gerl, J and Hellström, Margareta and Kopatch, Y and Mandal, S and Gorska, M and Page, RD and Wollersheim, HJ and Banu, A and Benzoni, G and Boardman, H and La Commara, M and Ekman, Jörgen and Fahlander, Claes and Geissel, H and Grawe, H and Kaza, E and Korgul, A and Matos, M and Mineva, Milena and Pearson, CJ and Plettner, C and Rudolph, Dirk and Scheidenberger, C and Schmidt, KH and Shishkin, V and Sohler, D and Summerer, K and Valiente-Dobon, JJ and Walker, PM and Weick, H and Winkler, M and Yordanov, O},
  issn         = {0556-2813},
  language     = {eng},
  number       = {2},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Angular Momentum Population in the Projectile Fragmentation of 238U at 750 MeV/nucleon},
  url          = {http://dx.doi.org/10.1103/PhysRevC.69.024617},
  volume       = {69},
  year         = {2004},
}