Deuteron photodisintegration: Impulse approximation and gauge invariance

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.22.968· OSTI ID:5159222

Hwang, W P; Miller, G A

We study the question of whether calculations of deuteron photodisintegration respect gauge invariance, and show that the impulse approximation is in severe disagreement with gauge invariance. The method in which Siegert's theorem is implemented is consistent with gauge invariance to within ten percent. We introduce a modification of the impulse approximation in which the current is conserved exactly. For deuteron photodisintegration this method yields essentially the same results as that of Partovi. Our method can easily be applied to electron- or neutrino-nucleus scattering.

• Research Organization: Institute for Nuclear Theory, Department of Physics, FM-15, University of Washington, Seattle, Washington 98195
• OSTI ID: 5159222
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 22:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BREAKUP REACTIONS
CHARGED-PARTICLE REACTIONS
DEUTERIUM TARGET
E1-TRANSITIONS
ELECTRON REACTIONS
ENERGY-LEVEL TRANSITIONS
FORM FACTORS
GAUGE INVARIANCE
IMPULSE APPROXIMATION
INVARIANCE PRINCIPLES
LEPTON REACTIONS
MULTIPOLE TRANSITIONS
NEUTRINO REACTIONS
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PHOTONUCLEAR REACTIONS
TARGETS