Equivalent local potentials to multiple scattering calculations of nucleon-nucleus scattering

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.1091· OSTI ID:5226455

Crespo, R ^[1]; Johnson, R C; Tostevin, J A ^[2]; Mackintosh, R S; Cooper, S G ^[3]

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1. Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Avenida Rovisco Pais, P-1096 Lisboa (Portugal) Centro de Fisica Nuclear, Universidade de Lisboa, Avenida Prof. Gama Pint o 2, P-1699 Lisboa (Portugal)
2. Department of Physics, University of Surrey, Guildford, Surrey GU2 5XH (United Kingdom)
3. Physics Department, The Open University, Milton Keynes, MK7 6AA (United Kingdom)

Local phase equivalent interactions to the nonlocal Kerman, McManus, and Thaler multiple scattering nucleon-nucleus optical potentials are determined. Both first- and second-order contributions in the free nucleon-nucleon transition amplitude are included. The second-order terms modify the derived potentials in a nontrivial way and reduce the strnegths of the real and imaginary central potentials in the nuclear interior. The nonlocality of the first- and second-order multiple scattering potentials is quantified by the evaluation of an associated Perey factor. Calculations give a mean free path of [lambda]=3--4 fm for 100--200 MeV incident nucleons on [sup 16]O.

• OSTI ID: 5226455
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300* -- Nuclear Reactions & Scattering
General-- (1992-)
663430 -- Nucleon-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BARYON REACTIONS
ELASTIC SCATTERING
ENERGY RANGE
HADRON REACTIONS
LOCALITY
MEV RANGE
MEV RANGE 100-1000
MULTIPLE SCATTERING
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL MODELS
OXYGEN 16 TARGET
POLARIZATION
SCATTERING
TARGETS
TRANSITION AMPLITUDES