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Physics in Collision 2010

1–4 Sept 2010
KIT
Europe/Zurich timezone

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Session

Poster Presentations A

PP-A
2 Sept 2010, 10:00
KIT

KIT

Karlsruhe Institute of Technology Wolfgang-Gaede-Weg 1 76131 Karlsruhe Germany

Description

Short Talks on selected Posters

Presentation materials

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  1. 84. Commissioning and Performance of the CMS Electromagnetic Calorimeter
    Eleni Petrakou (Nat. Cent. for Sci. Res. Demokritos (NRCPS))
    02/09/2010, 10:00
    Poster
    Poster and Presentation
    The operation and general performance of the CMS electromagnetic calorimeter at sqrt{s} = 7 TeV are described. The first LHC beams have been used to finalize the commissioning of ECAL readout and trigger. The precision of the inter-channel synchronization and calibration has been verified and improved with collision data, exploiting decays of pi0s and eta into two photons, the phi invariance...
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  2. 18. Performance of the ATLAS Trigger Reconstruction for Minimum Bias Events, Jets, and Missing Transverse Energy in pp-collisions at sqrt{s} = 7 TeV
    Ms Regina Kwee (CERN/Humboldt University of Berlin)
    02/09/2010, 10:08
    Poster
    Poster and Presentation
    Since the restart of the LHC, ATLAS has successfully recorded data at sqrt{s} = 0.9 and 7 TeV. The ATLAS trigger strategy realised a step-wise activation of the three level trigger system, starting with hardware-based first-level (L1) triggers and moving with increasing luminosities to the deployment of the software-based high-level triggers (HLT). We will present L1 and HLT triggers and their...
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  3. 12. Measurement of W and Z boson production in pp at sqrt(s) = 7 TeV with the ATLAS detector
    Verena Ingrid Martinez Outschoorn (Harvard University)
    02/09/2010, 10:16
    Poster
    Poster and Presentation
    The first measurement of the production cross-sections for W and Z bosons in proton proton interactions at sqrt(s) = 7 TeV are reported from the ATLAS experiment. Based on its excellent capability for reconstructing both high pT electrons and muons, the electron and the muon decay modes of the W/Z bosons are compared. First results for the ratio of W/Z production and of W+/W- production...
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  4. 74. Inclusive b-jet production measurement on early CMS data
    Daniel Martschei (Inst. fuer Experimentelle Kernphys.-Universitaet Karlsruhe-Unkno)
    02/09/2010, 10:24
    Poster
    Poster and Presentation
    We describe a measurement of the inclusive b-jet production in pp collisions at sqrt(s) = 7 TeV. The analysis has been done on the first physics data collected by the CMS experiment at the Large Hadron Collider at CERN. To improve the low p_T measurement, the jets are reconstructed with the Particle Flow algorithm. The experimental uncertainties from jet energy corrections, jet energy...
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  5. 88. Tevatron Combination of Single Top Quark Production
    Dr Jan Lueck (EKP)
    02/09/2010, 10:32
    Poster
    Poster and Presentation
    After the first observation of the inclusive single top-quark production in the s- and t-channels by both CDF and D0, the Tevatron collaborations combined their measurements using the distributions of their multivariate discriminants. A Bayesian analysis is used to extract the cross section at a center of mass energy of 1.96 TeV from 3.2/fb (CDF) and 2.3/fb (D0) of data, respectively. For a...
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