Mar 21 – 27, 2009
Europe/Prague timezone

The CMS Tracker calibration workflow: experience with cosmic ray data

Mar 24, 2009, 8:00 AM


Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
Board: Tuesday 007
poster Event Processing Poster session


Simone Frosali (Dipartimento di Fisica - Universita di Firenze)


The CMS Silicon Strip Tracker (SST) consists of 25000 silicon microstrip sensors covering an area of 210m2 and 10 million readout channels. Starting from December 2007 the SST has been inserted and connected inside the CMS experiment and since summer 2008 it has been commissioned using cosmic muons with and without magnetic field. During these data taking the performance of the SST have been carefully studied: the noise of the detector, together with its correlations with the strip length and the temperature, the data integrity, the S/N ratio, the hit reconstruction efficiency and the calibration constants have been all monitored with time and for different conditions, at the full detector granularity. In this presentation an overview of the SST calibration workflow and the detector performance results will be given.

Primary author

Ms Maria Assunta Borgia (University and INFN Turin)

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