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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Tile Calorimeter testbeam data analysis
 Uhliarová, Lea ; Davídek, Tomáš (advisor) ; Dolejší, Jiří (referee)
Tile Calorimeter modules are regularly tested in the CERN SPS North Area, as they are an integral part of the ATLAS experiment at the Large Hadron Collider at CERN. In this thesis, test beam data from November 2018 were used for two separate analyses. Muon SPS H8 beam allowed for the review of radial electromagnetic cali- bration in the extended barrel module EBC65. Data from November 2018 test beam confirmed the correctness of previously established and used constants for rectifying uneven response in A, BC and D cell rows. In the second analysis, hadron beam from the SPS accelerator impinging on the Tile Calorimeter modules in the projective geometry was utilized. It served to determine the distribution of the mean energy in the calorimeter for hadronic showers in Tile Calorimeter at η varying from −0.05 up to −0.65. 1
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Monte Carlo Simulations of the Tile Calorimeter and Measurement of the Z→ττ Cross Section with the ATLAS Detector
 Nováková, Jana ; Davídek, Tomáš (advisor) ; Trávníček, Petr (referee) ; Taševský, Marek (referee)
Title: Monte Carlo Simulations of the Tile Calorimeter and Measurement of the Z → ττ Cross Section with the ATLAS Detector Author: Mgr. Jana Nováková Department: Institute of Particle and Nuclear Physics (IPNP) Supervisor: RNDr. Tomáš Davídek, PhD., IPNP Supervisor's e-mail address: davidek@ipnp.troja.mff.cuni.cz Abstract: The Monte Carlo simulations of the Tile calorimeter in the ATLAS experiment at the LHC, especially the electronic noise and multiple interactions (co-called pile-up), are discussed in the thesis. A good agreement in the cell energy distribution between data and Monte Carlo simulations is found. The cross section measurement of Z → ττ events with the ττ invariant mass between 66 and 116 GeV with the ATLAS experiment is described in the next part of the thesis. Data samples collected during 2011 corresponding to the integrated luminosity of 1.34 - 1.55 fb−1 are used for the analysis. The measurements are performed in three different final states depending on the decay mode of the τ leptons. The measurement in the channel with one τ lepton decaying leptonically into the electron + neutrinos (schematically τ → e + νe + ντ ) and the other one hadronically (schematically τ → hadrons + ντ ), especially the calculation of the nominal cross section and the evaluation of the systematic...
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