Longitudinal momentum mining of antiprotons at the fermilab recycler: past, present and future

The technique of longitudinal momentum mining (LMM) in the Fermilab Recycler was adopted in early 2005 to extract thirty-six equal intensity and equal 6D- emittance antiproton bunches for proton-antiproton collider operation in the Tevatron. Since that time, several improvements have been made in the Recycler and the mining technique to handle higher intensity beams. Consequently, the Recycler has become a key contributor to the increased luminosity performance observed during Tevatron Run lib. In this paper, we present an overview of the improvements and the current status of the momentum mining technique.