Abstract
Effects of meson exchange currents on elastic and inelastic electron scattering from nuclei are considered with specific applications to 3He, 6Li, 7Li, 9Be and 10B. The one-pion exchange approximation is employed (with “pair” and “pionic” graphs) in the non-relativistic limit, where only transverse isovector multipoles are allowed. This approach is shown to be consistent with current conservation. Form factors are calculated with and without exchange currents for a wide range of momentum transfers (up to 1 GeV/ c) and for a variety of nuclear transitions to determine where exchange-current effects are large. The relevance of these calculations to experiment is discussed.
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