Interactions of relativistic {sup 36}Ar and {sup 40}Ar nuclei in hydrogen: Isotopic production cross sections
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
- Dipartimento di Fisica, Universita di Catania and INFN-Sezione di Catania, Corso Italia 57, I 95129-Catania (Italy)
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
- Space Science Laboratory, University of California, Berkeley, California 94720 (United States)
- Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (United States)
- NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)
- Service dAstrophysique, C.E.N. Saclay, 91191 Gif-sur-Yvette, Cedex (France)
- Department of Astronomy, New Mexico State University, Las Cruces, New Mexico 88003 (United States)
The interactions of {sup 36}Ar projectile nuclei with energies of 361, 546, and 765 MeV/nucleon and {sup 40}Ar nuclei with 352 MeV/nucleon, have been studied in a liquid-hydrogen target as part of a program to study interactions of relevance to the problem of cosmic-ray propagation in the interstellar medium. We have measured the cross sections for the production of isotopic fragments of the projectile nuclei in these interactions. The variations of these cross sections with mass, charge, and energy, are examined for insights into any systematic features of this type of fragmentation reaction that might aid predictions of other, unmeasured cross sections. These cross sections are also compared with the values derived from the most commonly used prediction techniques. It is suggested that these techniques could be improved by taking account of the systematic features identified here. {copyright} {ital 1997} {ital The American Physical Society}
- DOE Contract Number:
- FG05-84ER40147
- OSTI ID:
- 664431
- Journal Information:
- Physical Review, C, Vol. 56, Issue 1; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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