Evidence for diffractive charm production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mi>μ</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant="normal">Fe</mml:mi></mml:math>and<mml:mat

We present evidence for the diffractive processes {nu}{sub {mu}}Fe{yields}{mu}{sup -}D{sub S}{sup +}(D{sub S}{sup *})Fe and {nu}(bar sign){sub {mu}}Fe{yields}{mu}{sup +}D{sub S}{sup -}(D{sub S}{sup *})Fe using the Fermilab SSQT neutrino beam and the Lab E neutrino detector. The data are consistent with standard model production of the neutrino trident reactions {nu}{sub {mu}}Fe{yields}{nu}{sub {mu}}{mu}{sup -}{mu}{sup +}Fe and {nu}(bar sign){sub {mu}}Fe{yields}{nu}(bar sign){sub {mu}}{mu}{sup +}{mu}{sup -}Fe. We see no evidence for neutral-current production of J/{psi} via either diffractive or deep inelastic scattering mechanisms. (c) 2000 The American Physical Society.