002310658 001__ 2310658
002310658 005__ 20180329012919.0
002310658 0248_ $$aoai:cds.cern.ch:2310658$$pcerncds:FULLTEXT
002310658 037__ $$aATL-PHYS-SLIDE-2018-143
002310658 041__ $$aeng
002310658 088__ $$9ATL-COM-PHYS-2018-225
002310658 100__ $$0AUTHOR|(INSPIRE)INSPIRE-00050327$$0AUTHOR|(SzGeCERN)412843$$aMarti i Garcia, [email protected]$$uInstituto de Fisica Corpuscular (IFIC), Centro Mixto Universidad de Valencia - CSIC
002310658 110__ $$aThe ATLAS collaboration
002310658 245__ $$aTHE ATLAS INNER DETECTOR TRACK BASED ALIGNMENT
002310658 260__ $$c2018
002310658 269__ $$aGeneva$$bCERN$$c28 Mar 2018
002310658 300__ $$a1 p
002310658 520__ $$aThe alignment of the ATLAS Inner Detector is performed with a track-based alignment algorithm. Its goal is to provide an accurate description of the detector geometry such that track parameters are accurately determined and free from biases. Its software implementation is modular and configurable, with a clear separation of the alignment algorithm from the detector system specifics and the database handling. The alignment must cope with the rapid movements of the detector as well as with the slow drift of the different mechanical units. Prompt alignment constants are derived for every run at the calibration stage. These sets of constants are then dynamically split from the beginning of the run in many chunks, allowing to describe the tracker geometry as it evolves with time. The alignment of the Inner Detector is validated and improved by studying resonance decays (Z and J/psi to mu+mu-), as well as using information from the calorimeter system with the E/p method with electrons. A detailed study of these resonances (together with the prpperties of their decay products) allows correcting for alignment weak modes such as detector curls, twists or radial deformations that may bias the momentum and/or the impact parameters. On the other hand, the detailed scrutiny of the track-hit residuals serves to asses the shape of the Pixels and IBL modules.
002310658 594__ $$aSLIDE
002310658 595__ $$aCERN CDS-Invenio WebSubmit
002310658 65017 $$2SzGeCERN$$aParticle Physics - Experiment
002310658 65027 $$2SzGeCERN$$aPhysics
002310658 6531_ $$9CERN$$aATLAS
002310658 6531_ $$9CERN$$aInner Detector
002310658 6531_ $$9CERN$$aAlignment
002310658 6531_ $$9CERN$$aWeak modes
002310658 6531_ $$9CERN$$aTRACKING
002310658 690C_ $$aCERN
002310658 690C_ $$aINTNOTE
002310658 690C_ $$aPRIVATLAS
002310658 690C_ $$aPUBLATLASSLIDE
002310658 693__ $$aCERN LHC$$eATLAS
002310658 710__ $$5PH-EP
002310658 710__ $$gATLAS Collaboration
002310658 8564_ $$uhttp://cds.cern.ch/record/2308246$$yOriginal Communication (restricted to ATLAS)
002310658 859__ [email protected]
002310658 8564_ $$81392905$$s5441532$$uhttp://cds.cern.ch/record/2310658/files/ATL-PHYS-SLIDE-2018-143.pdf
002310658 916__ $$sn$$w201870
002310658 960__ $$a91
002310658 962__ $$b2283030$$nseattle20180320
002310658 963__ $$aPUBLIC
002310658 970__ $$a000758850CER
002310658 980__ $$aPUBLATLASSLIDE
002310658 980__ $$aSlides