MUON-CAPTURE IN DEUTERIUM AND THE MESON EXCHANGE CURRENT EFFECT

One-meson exchange current effect in reaction μ- + d → 2n + vμ is calculated by using the weak axial current operator which satisfies the nuclear continuity equation up to the order 1 M2 (M is the nucleon mass). In the vector part of the weak nuclear interaction the vector-isovector pion exchange currents are also included. Their contribution is found to be non-negligible. The nuclear wave functions are generated from the Paris, Reid soft-core and Bonn potential models. Our result is compatible with the previous one, obtained with only the static axial exchange currents included. © 1990.