Streamlined Calibrations of the ATLAS Precision Muon Chambers for Initial LHC Running

The ATLAS Muon Spectrometer is designed to measure the momentum of muons with a resolution of dp/p = 3% and 10% at 100 GeV and 1 TeV momentum respectively. For this task, the spectrometer employs 355,000 Monitored Drift Tubes (MDTs) arrayed in 1200 Chambers. Calibration (RT) functions convert drift...

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Detalles Bibliográficos
Autores principales: Amram, N., Ball, R., Benhammou, Y., Ben Moshe, M., Dai, T., Diehl, E.B., Dubbert, J., Etzion, E., Ferretti, C., Gregory, J., Haider, S., Hindes, J., Levin, D.S., Manilow, E., Thun, R., Wilson, A., Weaverdyck, C., Wu, Y., Yang, H., Zhou, B., Zimmermann, S.
Lenguaje:eng
Publicado: 2011
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2011.12.086
http://cds.cern.ch/record/1334017
Descripción
Sumario:The ATLAS Muon Spectrometer is designed to measure the momentum of muons with a resolution of dp/p = 3% and 10% at 100 GeV and 1 TeV momentum respectively. For this task, the spectrometer employs 355,000 Monitored Drift Tubes (MDTs) arrayed in 1200 Chambers. Calibration (RT) functions convert drift time measurements into tube-centered impact parameters for track segment reconstruction. RT functions depend on MDT environmental parameters and so must be appropriately calibrated for local chamber conditions. We report on the creation and application of a gas monitor system based calibration program for muon track reconstruction in the LHC startup phase.

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