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NASA NTRS · 20040088423

Medium modified two-body scattering amplitude from proton-nucleus total cross-sections

Tripathi, R. K.·Wilson, J. W.·Cucinotta, F. A.
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Abstract

Recently (R.K. Tripathi, J.W. Wilson, F.A. Cucinotta, Nucl. Instr. and Meth. B 145 (1998) 277; R.K. Tripathi, F.A. Cucinotta, J.W. Wilson, NASA-TP-1998-208438), we have extracted nucleon-nucleon (N-N) cross-sections in the medium directly from experiment. The in-medium N-N cross-sections form the basic ingredients of several heavy-ion scattering approaches including the coupled-channel approach developed at the NASA Langley Research Center. Here, we investigate the ratio of real to imaginary part of the two-body scattering amplitude in the medium. These ratios are used in combination with the in-medium N-N cross-sections to calculate total proton-nucleus cross-sections. The agreement is excellent with the available experimental data. These cross-sections are needed for the radiation risk assessment of space missions. c2001 Elsevier Science B.V. All rights reserved.

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NASA Discipline Radiation HealthNASA Center LaRCNASA Center JSCProtonsHeavy IonsElementary ParticlesElementary Particle InteractionsScattering, RadiationBerylliumSpace FlightRadiation DosageCarbonAluminumUraniumLeadIron

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Tripathi, R. K., Wilson, J. W., Cucinotta, F. A.. 2001-02-01. Medium modified two-body scattering amplitude from proton-nucleus total cross-sections. https://ntrs.nasa.gov/citations/20040088423

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