Relativistic versus nonrelativistic optical potentials in {ital A}({ital e},{ital e}{prime}{ital p}){ital B} reactions

Journal Article · Thu Jun 01 00:00:00 EDT 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.51.3246· OSTI ID:55166

Udias, J M; Sarriguren, P; Moya de Guerra, E; Garrido, E; Caballero, J A ^[1]

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1. National Laboratory for Nuclear and High-Energy Physics, Section K (NIKHEF-K), P.O. Box 41882, 1009 DB Amsterdam (Netherlands)

We investigate the role of relativistic and nonrelativistic optical potentials used in the analysis of ({ital e},{ital e}{prime}{ital p}) data. We find that the relativistic calculations produce smaller ({ital e},{ital e}{prime}{ital p}) cross sections even in the case in which both relativistic and nonrelativistic optical potentials fit equally well the elastic proton-nucleus scattering data. Compared to the nonrelativistic impulse approximation, this effect is due to a depletion in the nuclear interior of the relativistic nucleon current, which should be taken into account in the nonrelativistic treatment by a proper redefinition of the effective current operator.

• OSTI ID: 55166
• Journal Information: Physical Review, C, Vol. 51, Issue 6; Other Information: PBD: Jun 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ELECTRON REACTIONS
QUASI-ELASTIC SCATTERING
OPTICAL MODELS
CROSS SECTIONS
QUENCHING
RELATIVISTIC RANGE
PROTON REACTIONS