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High Angular Momentum States Populated in Fragmentation Reactions

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Author

  • Z Podolyak
  • J Gerl
  • Margareta Hellström
  • F Becker
  • KA Gladnishki
  • M Gorska
  • A Kelic
  • Y Kopatch
  • S Mandal
  • PH Regan
  • KH Schmidt
  • PM Walker
  • HJ Wollersheim
  • A Banu
  • G Benzoni
  • H Boardman
  • E Casarejos
  • J Ekman
  • H Geissel
  • H Grawe
  • D Hohn
  • I Kojouharov
  • J Leske
  • R Lozeva
  • Milena Mineva
  • G Neyens
  • RD Page
  • CJ Pearson
  • M Portillo
  • Dirk Rudolph
  • N Saito
  • H Schaffner
  • D Sohler
  • K Summerer
  • JJ Valiente-Dobon
  • C Wheldon
  • H Weick
  • M Winkler
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Summary, in English

The population of metastable states produced in relativistic-energy fragmentation of a U-238 beam has been measured. For states with angular momentum greater than or similar to 20h, a much higher population than expected has been observed. By introducing a collective component to the generation of angular momentum the experimental data can be understood. This is the first time that a collective degree of freedom has be shown to play a major role in such high-energy collisions. (c) 2005 Elsevier B.V. All rights reserved.

Publishing year

2006

Language

English

Pages

203-206

Publication/Series

Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

632

Issue

2-3

Document type

Journal article (letter)

Publisher

Elsevier

Topic

  • Subatomic Physics

Status

Published

Research group

  • Nuclear Structure

ISBN/ISSN/Other

  • ISSN: 0370-2693