1279138 20180615161949.0 oai:cds.cern.ch:1279138 cerncds:FULLTEXT cerncds:cms-pas Inspire 925301 CMS-PAS-TRK-10-003 CMS Collaboration Studies of Tracker Material 2010 CMS Data NOTE CERN CERN LHC CMS CMS Collaboration http://cms.cern.ch/iCMS/analysisadmin/cadi?ancode=TRK-10-003 Additional information for the analysis (restricted access) http://cds.cern.ch/record/1279138/files/Figure_001.pdf Figure_001 Figure http://cds.cern.ch/record/1279138/files/Figure_003-a.png Figure_003-a Figure http://cds.cern.ch/record/1279138/files/Figure_003-b.png Figure_003-b Figure http://cds.cern.ch/record/1279138/files/Figure_004-a.png Figure_004-a Figure http://cds.cern.ch/record/1279138/files/Figure_004-b.png Figure_004-b Figure http://cds.cern.ch/record/1279138/files/Figure_005-a.png Figure_005-a Figure http://cds.cern.ch/record/1279138/files/Figure_005-b.png Figure_005-b Figure http://cds.cern.ch/record/1279138/files/Figure_005-c.png Figure_005-c Figure 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http://cds.cern.ch/record/1279138/files/TRK-10-003-pas.pdf Fulltext in PDF In this Analysis Summary, we present initial results of two complementary studies of the distribution and the effects of material within the CMS Tracker. The first is based on the reconstruction of secondary vertices resulting from photon conversions and nuclear interactions within the material inside the tracking volume; the second is based on the determination of multiple scattering through the material in the tracking volume. Preliminary results obtained with the first $7{\rm TeV}$ data of 2010 are shown. The agreement between data and simulation is typically in the $10\%$ range. CC-BY-4.0 Preprint Particle Physics - Experiment SzGeCERN cms-pog-conveners-tracking@cern.ch CMS-PHYSICS-ANALYSIS-SUMMARIES NOTE