title: Optical model analyses of 1.65 A GeV argon fragmentation:  cross sections and momentum distributions.
abstract: An optical potential fragmentation model capable of predicting fragmentation cross sections and fragment momentum distributions is used to analyze recent measurements of 1.65 A GeV argon projectiles fragmenting in carbon and potassium-chloride targets obtained with the Heavy Ion Spectrometer System (HISS) at the Lawrence Berkeley Laboratory Bevalac.  The theoretical model uses an abrasion-ablation-FSI (frictional spectator interaction) collision formalism to estimate elemental and isotopic production cross sections for comparison with the measured values.  The collision momentum transfer model is incorporated into a Goldhaber formalism to analyze measured transverse and longitudinal distributions of the projectile fragments.  Good agreement between theory and experiment is obtained for all observables.
authors.affiliation: NASA Langley Research Center, Hampton, Virginia 23681.
authors.forename: L W
authors.initials: LW
authors.lastname: Townsend
authors.forename: F
authors.initials: F
authors.lastname: Khan
authors.forename: R K
authors.initials: RK
authors.lastname: Tripathi
mesh_terms: D001128:Argon; D002244:Carbon; D004735:Energy Transfer; D007477:Ions; D007554:Isotopes; D008962:Models, Theoretical; D009686:Nuclear Physics; D011189:Potassium Chloride; D011827:Radiation; D011851:Radioactivity; D012542:Scattering, Radiation