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Fragmentation cross sections of relativistic ^(84)_(36)Kr and ^(109)_(47)Ag nuclei in targets from hydrogen to lead

Nilsen, B. S. and Waddington, C. J. and Cummings, J. R. and Garrard, T. L. and Klarmann, J. (1995) Fragmentation cross sections of relativistic ^(84)_(36)Kr and ^(109)_(47)Ag nuclei in targets from hydrogen to lead. Physical Review C, 52 (6). pp. 3277-3280. ISSN 0556-2813. doi:10.1103/PhysRevC.52.3277.

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With the addition of krypton and silver projectiles we have extended our previous studies of the fragmentation of heavy relativistic nuclei in targets ranging in mass from hydrogen to lead. These projectiles were studied at a number of discrete energies between 450 and 1500A MeV. The total and partial charge-changing cross sections were determined for each energy, target, and projectile, and the values compared with previous predictions. A new parametrization of the dependence of the total charge-changing cross sections on the target and projectile is introduced, based on nuclear charge radii derived from electron scattering. We have also parametrized the energy dependence of the total cross sections over the range of energies studied. New parameters were found for a previous representation of the partial charge-changing cross sections in hydrogen and a new parametrization has been introduced for the nonhydrogen targets. The evidence that limiting fragmentation has been attained for these relatively light projectile nuclei at Bevalac energies is shown to be inconclusive, and further measurements at higher energies will be needed to address this question.

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Additional Information:© 1995 The American Physical Society. Received 2 June 1995. We are grateful to all those who assisted in this experiment. In particular, we thank W. R. Binns, E. C. Stone, B. W. Gauld, and L. Y. Geer for their assistance. We are indebted to the staff of the LBL Bevelac facility, especially H. J. Crawford, J. Engelage, L. Greiner, and M. Flores for their assistance. This work was funded in part by NASA grants.
Group:Space Radiation Laboratory
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Space Radiation Laboratory1995-38
Issue or Number:6
Record Number:CaltechAUTHORS:20140619-160623174
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46376
Deposited By: Deborah Miles
Deposited On:20 Jun 2014 18:57
Last Modified:10 Nov 2021 17:24

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