The interplay of GEM and STT

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Presentation transcript:

The interplay of GEM and STT GSI, December 7th, 2009 The interplay of GEM and STT Gianluigi Boca

The track length of the straws in the central detector and the number of GEM stations have to be optimized.

The GEM’s are a more precise detector, so in principle one would like to have as many GEM planes as possible.

The GEM’s are a more precise detector, so in principle one would like to have as many GEM planes as possible. However one has to take into account also the amount of passive material (for instance : cables, connectors, etc.) of both the STT and the GEM’s and understand what is the best combination of straw length-number of GEM planes.

The GEM’s are a more precise detector, so in principle one would like to have as many GEM planes as possible. However one has to take into account also the amount of passive material (for instance : cables, connectors, etc.) of both the STT and the GEM’s and understand what is the best combination of straw length-number of GEM planes. So the idea is to perform a set of simulations with different configurations in order to assess that and have an answer by March

A proposal of a roadmap to get an answer in 3-6 months

A proposal of a roadmap to get an answer in 3-6 months The geometry of the STT and GEM in Geant must be modified in order to take into account (reasonably) all the passive materials. The 3o slant angle more or less fixed due to to construction requirements.

A proposal of a roadmap to get an answer in 3-6 months The geometry of the STT and GEM in Geant must be modified in order to take into account (reasonably) all the passive materials. The 3o slant angle more or less fixed due to to construction requirements. Simulation of uniformly generated tracks to asses the geometrical coverage with different configurations.

A proposal of a roadmap to get an answer in 3-6 months The geometry of the STT and GEM in Geant must be modified in order to take into account (reasonably) all the passive materials. The 3o slant angle more or less fixed due to to construction requirements. Simulation of uniformly generated tracks to asses the geometrical coverage with different configurations. Use the pattern recognition and track fitting to asses reconstruction efficiency with different configurations.

A proposal of a roadmap to get an answer in 3-6 months The geometry of the STT and GEM in Geant must be modified in order to take into account (reasonably) all the passive materials. The 3o slant angle more or less fixed due to to construction requirements. Simulation of uniformly generated tracks to asses the geometrical coverage with different configurations. Use the pattern recognition and track fitting to asses reconstruction efficiency with different configurations. Investigate efficiency with physical channels in different configurations?

A proposal of a roadmap to get an answer in 3-6 months The geometry of the STT and GEM in Geant must be modified in order to take into account (reasonably) all the passive materials. The 3o slant angle more or less fixed due to to construction requirements. Simulation of uniformly generated tracks to asses the geometrical coverage with different configurations. Use the pattern recognition and track fitting to asses reconstruction efficiency with different configurations. Investigate efficiency with physical channels in different configurations? Two people working on the project, hope to finish in 3-6 months.