6533b830fe1ef96bd1296899

RESEARCH PRODUCT

Meson retardation in deuteron electrodisintegration

M. SchwambHartmuth Arenhövel

subject

PhysicsNuclear and High Energy PhysicsMesonNuclear TheoryΔ-excitationStructure functionNuclear TheoryFOS: Physical sciencesDeuteron electrodisintegrationNuclear physicsNuclear Theory (nucl-th)Operator (computer programming)DeuteriumYield (chemistry)Meson retardationMeson exchange currentsNuclear theoryExcitation

description

The effect of meson retardation in $NN$-interaction and exchange currents on deuteron electrodisintegration is studied in a coupled channel approach including $NN$-, $N \Delta$- and $\pi d$-channels. It is shown that the influence of retardation depends on the energy regime: Whereas below $\pi$-threshold calculations with static and retarded operators yield almost identical results, they differ significantly in the $\Delta$-region. Especially, the longitudinal and the longitudinal-transverse interference structure functions are strongly affected.

10.1016/j.physletb.2004.03.032http://dx.doi.org/10.1016/j.physletb.2004.03.032