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Published 1995 | Published
Book Section - Chapter Open

Nuclear Interaction Cross Sections for UltraHeavy Nuclei

Abstract

We summarize additions to our data base of charge-changing cross sections for relativistic ultraheavy nuclei interacting in targets ranging from H to Pb. We have improved parametric fits to those cross sections as functions of energy and of projectile, target, and fragment charge. At high energies, we have determined cross sections for Au projectiles at 10.6 GeV /nucleon in targets of H, CH_2, C, Al, Cu, Sn, and Pb. Compared with cross sections at 1 GeV /n, fragment production is substantially changed, especially for the H target. These changes have important implications for calculations of interstellar propagation of ultraheavy nuclei. At lower energies, we have added Kr and Ag to our list of projectiles. Analysis of these data has led to a better understanding of the systematics of these cross sections, hence more physically meaningful parameterizations for fragmentation at high energies and for charge pickup.

Additional Information

© IUPAP. Provided by the NASA Astrophysics Data System. E. C. Stone and B. W. Gauld of Caltech and W. R. Binns of Washington University contributed significantly. The facilities of the LBL Bevalac and the BNL AGS, and the tremendous support of many inclividuals at those facilities are gratefully acknowledged. This work has been supported in part by NASA and DOE.

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