Background Information

This is a measurement of the total Z cross section times the branching ratio into muons using 337 pb-1 of data taken between Aug 2002 and Aug 2004.

Some parts of the analysis were taken from the 72 pb-1 analysis and not recalculated with the new dataset. These are things we assumed did not change significantly.

See PRL 94, 091803 and hep-ex/0508029 for details of the 72 pb-1 analysis. Everything else was recalculated using the 337 pb-1 dataset and new simulation.

For more information contact David Dagenhart

Results

Mass Distribution of Z Candidates:

Narrow range:

Wide range:

Table showing cross section times branching ratio, acceptance, luminosity, and background: