-- MarcoMaggiora - 21 May 2006

Purpose

Muon identification in the PANDA experiment.

First estimations

Two muons must be identified in the final state to accept the event. The first plot show the angular distribution versus the energy in the laboratory frame:

The estimated acceptance for muons of different momenta for the PANDA setup described in the PANDA LOI (January 2004), i.e identifing muons by the mean of the muon trackers only, should be too low for slow muons:

Requirements

Different strategies for muon identification in different momentum regions must be envisaged:

Basic detector features

The bacis detector features for the muon trackers will be:

Time resolution	2-4 nsec
Single plane space resolution (pitch size)	1 cm
Maximal drift time	100 nsec
Double hit resolution	25 nsec
Gas mixture	Ar, CO2, CF4