Meson-induced correlations of nucleons in nuclear Compton scattering

Journal Article · Thu Jan 01 00:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.305· OSTI ID:566010

Huett, M; Milstein, A I ^[1]

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1. Budker Institute of Nuclear Physics, 630090 Novosibirsk (Russia)

The nonresonant (seagull) contribution to the nuclear Compton amplitude at low energies is strongly influenced by nucleon correlations arising from meson exchange. We study this problem in a modified Fermi gas model, where nuclear correlation functions are obtained with the help of perturbation theory. The dependence of the mesonic seagull amplitude on the nuclear radius is investigated and the influence of a realistic nuclear density on this amplitude is discussed. We found that different form factors appear for the static part (proportional to the enhancement constant {kappa}) of the mesonic seagull amplitude and for the parts, which contain the contribution from electromagnetic polarizabilities. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 566010
• Journal Information: Physical Review, C, Vol. 57, Issue 1; Other Information: PBD: Jan 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPTON EFFECT
FERMI GAS MODEL
PHOTONUCLEAR REACTIONS
NUCLEONS
CORRELATION FUNCTIONS
PERTURBATION THEORY
MESONS
SCATTERING AMPLITUDES
FORM FACTORS
POLARIZABILITY