Search for new physics in tt̄ final states with additional heavy-flavor jets with the ATLAS detector. (2016)

• Record Type: Book
• Further Information: Note: Javier Montejo Berlingen.
• Authors: Berlingen, Javier Montejo
• Contents: Supervisor's Foreword; Publications related to this thesis:; Contents; Preamble; 1 Introduction and Theoretical Framework; 1.1 The Standard Model; 1.1.1 Electroweak Theory; 1.1.2 The Higgs -- Englert -- Brout Mechanism; 1.1.3 Quantum Chromodynamics; 1.1.4 Experimental Successes of the Standard Model; 1.1.5 Shortcomings of the Standard Model; 1.2 Beyond the Standard Model; 1.2.1 Supersymmetry; 1.2.2 Extra Dimensions; 1.2.3 Compositeness; 1.3 Signatures of BSM Theories; 1.3.1 Fermionic Top Partners: Vector-Like Quarks; 1.3.2 Bosonic Top Partners: Stops; 1.3.3 Four-top-quark Production; References. 2 The ATLAS Experiment at the Large Hadron Collider2.1 The Large Hadron Collider; 2.2 The ATLAS Experiment; 2.2.1 Coordinate System; 2.2.2 Magnet System; 2.2.3 Inner Detector; 2.2.4 Calorimeters; 2.2.5 Muon Spectrometers; 2.3 Forward Subdetectors and Luminosity Measurement; 2.4 Trigger System; 2.5 Data Quality; References; 3 Event Simulation; 3.1 Simulation of pp Collisions; 3.1.1 Factorization Theorem; 3.1.2 Fixed Order QCD: Matrix Elements; 3.1.3 Parton Shower; 3.1.4 Matrix Element and Parton Shower Matching; 3.1.5 Hadronization; 3.1.6 Underlying Event; 3.1.7 Pile-up. 3.2 Monte Carlo Generators3.2.1 General Purpose Monte Carlo Generators; 3.2.2 Multi-leg Leading-Order Generators; 3.2.3 NLO Generators; 3.3 ATLAS Simulation; 3.4 Monte Carlo Corrections; References; 4 Reconstruction of Physics Objects; 4.1 Tracks; 4.2 Primary Vertices; 4.3 Leptons; 4.3.1 Electrons; 4.3.2 Muons; 4.4 Jets; 4.4.1 Cluster Formation; 4.4.2 Jet-Finding Algorithm; 4.4.3 Jet Calibration; 4.4.4 Jet Energy Scale Uncertainty; 4.4.5 Jet Energy Resolution; 4.4.6 Jet Reconstruction Efficiency; 4.4.7 Jet Cleaning and Jet Vertex Fraction; 4.5 b-tagging; 4.5.1 b-tagging Algorithms. 4.5.2 b-tagging Calibration4.6 Missing Transverse Energy; References; 5 Common Aspects in Searches for New Physics in tbart Final States with Additional Heavy-Flavor Jets; 5.1 Analysis Strategy; 5.2 Data Sample; 5.3 Event Preselection; 5.4 Signal and Background Modeling; 5.4.1 tbart+jets Background; 5.4.2 W/Z+jets Background; 5.4.3 Other Simulated Backgrounds; 5.4.4 Multijet Background; 5.4.5 Signal Modeling; 5.5 Comparison Between Data and Prediction; 5.6 Tag Rate Function Method; 5.7 Systematic Uncertainties; 5.7.1 Luminosity; 5.7.2 Object Definitions; 5.7.3 tbart Modeling Uncertainties. 5.7.4 W/Z+jets Background5.7.5 Other Simulated Backgrounds; 5.7.6 Multijet Background; 5.7.7 Signal Modeling; References; 6 Statistical Analysis; 6.1 Hypothesis Testing; 6.1.1 CLs Method; 6.2 Likelihood Function and Profile Likelihood Ratio; 6.2.1 p-values; 6.2.2 Approximate Distributions for the Test Statistic; 6.2.3 Profiling in Action; References; 7 Searches for New Physics in tbart Final States with Additional Heavy-Flavor Jets; 7.1 Search for tbartH Production; 7.1.1 Event Selection and Categorization; 7.1.2 Discriminant Variable: Artificial Neural Networks; 7.1.3 Neural Network Training.
• Publisher Details: Switzerland : Springer
• Publication Date: 2016
• Extent: 1 online resource (xiv, 283 pages), illustrations (some color)
• Subjects: 539.7/2167; Physics; Quantum flavor dynamics; Quarks; SCIENCE -- Physics -- Quantum Theory; Quantum flavor dynamics; Quarks; Science -- Quantum Theory; Statistical physics; Quantum theory; Science -- Nuclear Physics; Quantum physics (quantum mechanics & quantum field theory); Electronic books
• Languages: English
• ISBNs: 9783319410517; 3319410512; 3319410504; 9783319410500
• Related ISBNs: 9783319410500
• Notes: Note: Includes bibliographical references.; Note: Online resource; title from PDF title page (SpringerLink, viewed July 26, 2016).
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.