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In recent months Ed Platner has proposed a muon detector for STAR. It would consist of a set of drift chambers placed around the return yoke. Due to the large amount of material between the interaction point and the chambers, only muons would reach those devices. However not only primary muons would be detected, but also 's from particle decays. In addition hadronic shower tails might also reach the muon chambers.

Recently Mark Tinknell [1] has performed analytical calculations to estimate those backgrounds. He finds a neglible contribution from particle punch through. However for decay muons the background seems to be around 1 per central AuAu event.

In this report the background from and K decays is studied using Monte Carlo information.
Fri Apr 15 17:13:51 EDT 1994