Gauge dependence of nonrelativistic calculations of deuteron photodisintegration

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.841· OSTI ID:6914990

Schmitt, K; Wilhelm, P; Arenhoevel, H; Cambi, A; Mosconi, B; Ricci, P ^[1]

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1. Institut fuer Kernphysik, Universitaet Mainz, D-6500 Mainz, Federal Republic of Germany (DE) Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, I-50125, Italy (IT) Dipartimento di Fisica, Universita di Firenze, I-50125, Italy (IT)

The gauge dependence of nonrelativistic calculations of deuteron photodisintegration is investigated within simple one-pion and one-pion-one-rho exchange models with consistent exchange currents and for the realistic Paris and Bonn potentials. If no explicit exchange currents are considered but Siegert operators are used, the gauge dependence increases with energy and amounts to about 5 percent at 140 MeV. Inclusion of the dominant {pi}- and {rho}-exchange currents reduces this dependence to less than 1 percent at 140 MeV in contrast to other claims.

• OSTI ID: 6914990
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:3; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSON-EXCHANGE MODELS
CROSS SECTIONS
DEUTERIUM TARGET
DIFFERENTIAL CROSS SECTIONS
DISSOCIATION
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
NUCLEAR REACTIONS
OBE MODEL
OPE MODEL
PARTICLE MODELS
PERIPHERAL MODELS
PHOTONUCLEAR REACTIONS
POTENTIALS
TARGETS