TY - CONF AU - Wiedner, Dirk TI - LHCb commissioning and operation IS - DESY-PROC-2010-01 CY - Hamburg PB - Verlag Deutsches Elektronen-Synchrotron M1 - PUBDB-2016-01424 M1 - DESY-PROC-2010-01 SP - 79-82 PY - 2010 AB - The LHCb detector was commissioned with beam in November and December 2009. The time alignment was performed and data for space alignment taken both with and without magnetic field. When data taking was restarted in 2010, a second iteration on time and space alignment was performed. The resulting detector performance lead amongst others to good invariant mass resolution, as could be demonstrated in the Lambda measurement yielding m=1115+-2.5-MeV/c**2. This article will report on procedures used and progress in commissioning the detector for the first LHC physics run. T2 - Physics at the LHC 2010 CY - 7 Jun 2010 - 12 Jun 2010, Hamburg (Germany) Y2 - 7 Jun 2010 - 12 Jun 2010 M2 - Hamburg, Germany LB - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15 DO - DOI:10.3204/DESY-PROC-2010-01/245 UR - https://bib-pubdb1.desy.de/record/296388 ER -