A study of the material in the ATLAS inner detector using secondary hadronic interactions

Aad, G.; Borjanovic, I.; Božović-Jelisavčić, Ivanka; Agatonović-Jovin, Tatjana; Krstić, Jelena; Mamužić, Judita; Mudrinić, Mihajlo; Popovic, D. S.; Reljic, D.; Sijacki, Dj; Simic, Lj; Vranjes, N.; Vranješ Milosavljević, Marija; Zivkovic, L.

doi:10.1088/1748-0221/7/01/P01013

2012

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ATLAS Collaboration (ukupan broj autora: 3018)

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Abstract

The ATLAS inner detector is used to reconstruct secondary vertices due to hadronic interactions of primary collision products, so probing the location and amount of material in the inner region of ATLAS. Data collected in 7 TeV pp collisions at the LHC, with a minimum bias trigger, are used for comparisons with simulated events. The reconstructed secondary vertices have spatial resolutions ranging from similar to 200 mu m to 1 mm. The overall material description in the simulation is validated to within an experimental uncertainty of about 7%. This will lead to a better understanding of the reconstruction of various objects such as tracks, leptons, jets, and missing transverse momentum.

Keywords:

Detector modelling and simulations I (interaction of radiation with matter, interaction / of photons with matter, interaction of hadrons with matter, etc) / Particle tracking detectors (Solid-state detectors) / Si microstrip and pad detectors / Large detector systems for particle and astroparticle physics

Source:
Journal of Instrumentation, 2012, 7

Projects:

ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, FAPESP, Brazil, NSERC, NRC, CFI, Canada, CERN, CONICYT, Chile, CAS, MOST, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, MPO CR, VSC CR, Czech Republic, DNRF, DNSRC, Lundbeck Foundation, Denmark, ARTEMIS, European Union, IN2P3-CNRS, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, HGF, MPG, AvH Foundation, Germany, GSRT, Greece, ISF, MINERVA, GIF, DIP, Benoziyo Center, Israel, INFN, Italy, MEXT, JSPS, Japan, CNRST, Morocco, FOM, NWO, Netherlands, RCN, Norway, MNiSW, Poland, GRICES, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Wallenberg Foundation, Sweden, SER, SNSF, Canton of Bern, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, Royal Society, Leverhulme Trust, United Kingdom, DOE, NSF, United States of America, Canton of Geneva, Switzerland, ICREA

DOI: 10.1088/1748-0221/7/01/P01013

ISSN: 1748-0221 (print)

WoS: 000303806200127

Scopus: 2-s2.0-84863116044

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