Multiple dissociation of /sup 16/O, /sup 14/N, and /sup 12/C at 32. 5 MeV/nucleon

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An array of 34 fast/slow plastic scintillators has been used to identify fragments from the breakup of /sup 16/O, /sup 14/N, and /sup 12/C projectiles at 32.5 MeV/nucleon, scattered by a Au target. The dissociation of /sup 16/O into as many as five charged particles has been observed. The yields of the different channels correlate approximately with the threshold energy for separation of the projectile into the observed fragments. The excitation spectrum of the primary projectile fragment was deduced from the measured positions and kinetic energies of the individual fragments. These spectra show that, although most of the decomposition proceeds ... continued below

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Pages: 17

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Stokstad, R.G.; Chan, Y.D.; Dacal, A.; DiGregorio, D.E.; Harmon, B.A.; Knop, R. et al. September 1, 1988.

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An array of 34 fast/slow plastic scintillators has been used to identify fragments from the breakup of /sup 16/O, /sup 14/N, and /sup 12/C projectiles at 32.5 MeV/nucleon, scattered by a Au target. The dissociation of /sup 16/O into as many as five charged particles has been observed. The yields of the different channels correlate approximately with the threshold energy for separation of the projectile into the observed fragments. The excitation spectrum of the primary projectile fragment was deduced from the measured positions and kinetic energies of the individual fragments. These spectra show that, although most of the decomposition proceeds through excitation energies within /approximately/20 MeV of the lower particle-decay thresholds, excitation energies extending up to /approximately/80 MeV can be produced in the primary stage of the reaction. This represents a significant acquisition of energy by the projectile. Calculations of the yields based on a sequence of binary decays have been presented. Reactions in which one or two units of charge are acquired by the projectile were also observed. 25 refs., 10 figs.

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Pages: 17

Notes

NTIS, PC A03/MF A01; 1.

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  • 20. international summer school on nuclear physics, Mikolajki, Poland, 2 Sep 1988

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  • Other: DE89002668
  • Report No.: LBL-25810
  • Report No.: CONF-8809118-2
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 6678844
  • Archival Resource Key: ark:/67531/metadc1186927

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  • September 1, 1988

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  • July 3, 2018, 8:14 a.m.

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  • Oct. 29, 2018, 11:07 p.m.

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Stokstad, R.G.; Chan, Y.D.; Dacal, A.; DiGregorio, D.E.; Harmon, B.A.; Knop, R. et al. Multiple dissociation of /sup 16/O, /sup 14/N, and /sup 12/C at 32. 5 MeV/nucleon, article, September 1, 1988; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1186927/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.