SLD Notes

The SLD detector has a significant gap in its muon tracking coverage resulting from the redesign of the detector to meet earthquake safety standards. The 45-degree chambers are supplemental chamber planes added to recover tracking efficiency for muons in this gap between 0.65≤|cosθ|≤0.85. This note describes the effort on the part of the University of Mississippi group to commission these chambers.

This note describes changes in the calculation of the inverse weight matrix, due to multiple scattering, for the 45-Degree Chamber implementation of the WIC track fitter.