Original title: Odhad pozadí pro koncové stavy s tau leptony na experimentu ATLAS
Translated title: Estimation of background for final states including tau leptons with the ATLAS experiment
Authors: Nocarová, Marta ; Pleskot, Vojtěch (advisor) ; Mlynáriková, Michaela (referee)
Document type: Bachelor's theses
Year: 2019
Language: eng
Abstract: Processes with tau leptons in a final state are essential in many experi- ments studying products of proton collisions. Tau lepton most often decays hadronically; therefore jets misidentified as tau leptons can be a source of a significant part of the background of these events. A part of phase space where most reconstructed taus are misidentified jets is chosen. This part of phase space can be events with Z boson decaying into two muons. These events were studied, and distributions of several variables were compared with Monte Carlo simulation. A second part of the thesis presents studies based on a subsample of these events, consisting of events with an addi- tional jet passing specific loose tau lepton selection criteria. A data-driven method for estimating this type of background, fake factor, was studied on these events. 1
Keywords: ATLAS; CERN; LHC; tau lepton; ATLAS; CERN; LHC; tau lepton

Institution: Charles University Faculties (theses) (web)
Document availability information: Available in the Charles University Digital Repository.
Original record: http://hdl.handle.net/20.500.11956/109330

Permalink: http://www.nusl.cz/ntk/nusl-404304


The record appears in these collections:
Universities and colleges > Public universities > Charles University > Charles University Faculties (theses)
Academic theses (ETDs) > Bachelor's theses