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Widths of transverse momentum distributions in intermediate-energy heavy-ion collisions.

Widths of transverse momentum distributions in intermediate-energy heavy-ion collisions.

Physical review. C, Nuclear physics (1993-08-01)

F Khan, L W Townsend

RESUMO

The need to include dynamical collision momentum transfer contributions, arising from interacting nuclear and Coulomb fields, to estimates of fragment momentum distributions is discussed. Methods based upon an optical potential model are presented. Comparisons with recent experimental data of the Siegen group for variances of transverse momentum distributions for gold nuclei at 980 A MeV fragmenting on silver foil and plastic nuclear track detector targets are made. The agreement between theory and experiment is good.

MATERIAIS

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Silver, foil, 150x150mm, thickness 0.25mm, as rolled, 99.95+%

Silver, foil, 100x100mm, thickness 0.125mm, as rolled, 99.95+%

Silver, foil, 150x150mm, thickness 0.5mm, as rolled, 99.99+%

Silver, foil, 25x25mm, thickness 0.5mm, as rolled, 99.99+%

Silver, foil, 50x50mm, thickness 0.125mm, as rolled, 99.99+%

Silver, foil, 100x100mm, thickness 0.20mm, as rolled, 99.95+%

Silver, foil, 100x100mm, thickness 0.5mm, as rolled, 99.95+%

Silver, foil, 100x100mm, thickness 0.1mm, as rolled, 99.95+%

Silver, foil, 50x50mm, thickness 0.5mm, as rolled, 99.99+%

Silver, foil, 1m coil, thickness 0.025mm, as rolled, 99.95+%

Silver, foil, 25x25mm, thickness 1.0mm, as rolled, 99.99+%

Silver, foil, 50x50mm, thickness 0.125mm, as rolled, 99.95+%

Silver, foil, 50x50mm, thickness 0.20mm, as rolled, 99.95+%

Silver, foil, not light tested, 50x50mm, thickness 0.01mm, 99.95+%

Silver, foil, 150x150mm, thickness 0.5mm, as rolled, 99.95+%

Silver, foil, 25mm disks, thickness 0.1mm, as rolled, 99.95+%

Silver, foil, 300x300mm, thickness 0.1mm, annealed, 99.95+%

Silver, foil, 50x50mm, thickness 0.25mm, as rolled, 99.95+%

Silver, foil, 50x50mm, thickness 0.1mm, as rolled, 99.95+%

Silver, foil, 6mm disks, thickness 0.007mm, 99.97%

Silver, foil, light tested, 100x100mm, thickness 0.035mm, as rolled, 99.95+%

Silver, foil, not light tested, 100x100mm, thickness 0.025mm, as rolled, 99.95+%

Silver, foil, not light tested, 25x25mm, thickness 0.009mm, 99.97%

Silver, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%

Silver, foil, 50x50mm, thickness 0.15mm, as rolled, 99.95+%

Silver, foil, light tested, 50x50mm, thickness 0.0125mm, 99.95+%

Silver, foil, 4mm disks, thickness 0.004mm, 99.97%

Silver, foil, 4mm disks, thickness 0.1mm, as rolled, 99.95+%

Silver, foil, light tested, 150x150mm, thickness 0.05mm, as rolled, 99.95+%

Silver, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.95+%