CMS pixel detector upgrade and top quark pole mass determination /

CMS pixel detector upgrade and top quark pole mass determination /

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Bibliographic Details
Author / Creator:Spannagel, Simon.
Imprint:Cham : Springer, 2017.
Description:1 online resource (286 pages)
Language:English
Series:Springer Theses
Springer theses.
Subject:
Quarks.
Particles (Nuclear physics)
Particles (Nuclear physics)
Quarks.
Format: E-Resource Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/11349800
Hidden Bibliographic Details
ISBN:9783319588803
331958880X
9783319588797
3319588796
9783319588797
Digital file characteristics:PDF
text file
Notes:"Doctoral thesis accepted by the University of Hamburg, Germany."
6.3 Phase I Pixel Module Qualification.
Includes bibliographical references.
Print version record.
Summary:This thesis addresses two different topics, both vital for implementing modern high-energy physics experiments: detector development and data analysis. Providing a concise introduction to both the standard model of particle physics and the basic principles of semiconductor tracking detectors, it presents the first measurement of the top quark pole mass from the differential cross-section of tt+J events in the dileptonic tt decay channel. The first part focuses on the development and characterization of silicon pixel detectors. To account for the expected increase in luminosity of the Large Hadron Collider (LHC), the pixel detector of the compact muon solenoid (CMS) experiment is replaced by an upgraded detector with new front-end electronics. It presents comprehensive test beam studies conducted to verify the design and quantify the performance of the new front-end in terms of tracking efficiency and spatial resolution. Furthermore, it proposes a new cluster interpol ation method, which utilizes the third central moment of the cluster charge distribution to improve the position resolution. The second part of the thesis introduces an alternative measurement of the top quark mass from the normalized differential production cross-sections of dileptonic top quark pair events with an additional jet. The energy measurement is 8TeV. Using theoretical predictions at next-to-leading order in perturbative Quantum Chromodynamics (QCD), the top quark pole mass is determined using a template fit method.
Other form:Print version: Spannagel, Simon. CMS Pixel Detector Upgrade and Top Quark Pole Mass Determination. Cham : Springer International Publishing, ©2017 9783319588797
Standard no.:10.1007/978-3-319-58880-3
Table of Contents:
  • Supervisor's Foreword; Abstract; Preface; References; Some results presented in this thesis have been shown previously in the following publications:H. Jansen et al., "Performance of the EUDET-type beam telescopes", EPJ Tech. Instrum. 3 (2016), no. 1, 7, 10.1140/epjti/s40485-016-0033-2, arXiv:1603.09669.S. Spannagel, "Status of the CMS Phase I Pixel Detector Upgrade", Nucl. Instr. Meth. Phys. A (2016) doi:10.1016/j.nima.2016.03.028, arXiv:1511.06084.S. Spannagel, B. Meier, and H. Perrey, "The pxarCore Library
  • Technical Documentation, Reference Ma; Acknowledgements; Contents; Acronyms.
  • 1 Introduction to Particle Physics at Hadron Colliders1.1 The Standard Model of Particle Physics; 1.1.1 Particles and Interactions; 1.1.2 Perturbation Theory and Renormalization; 1.1.3 Electroweak Symmetry Breaking; 1.1.4 Beyond the Standard Model; 1.2 Proton-Proton Collisions; 1.2.1 Parton Distribution Functions; 1.2.2 The Factorization Theorem; 1.2.3 Underlying Event and Pile-Up; 1.3 Basic Detector Concepts; 1.3.1 Tracking Detectors; 1.3.2 Calorimeters; 1.4 Simulations Using the Monte Carlo Method; References; 2 The CMS Experiment at the LHC; 2.1 The Large Hadron Collider.
  • 2.1.1 Luminosity and Event Rate2.1.2 Experiments; 2.2 The Compact Muon Solenoid; 2.2.1 Tracking Detectors; 2.2.2 Calorimeters; 2.2.3 The Solenoid; 2.2.4 Muon Systems; 2.2.5 The Trigger and Data Acquisition System; 2.3 Upgrades to the CMS Experiment; 2.3.1 The Phase I Upgrades; 2.3.2 The Phase II Upgrades; References; Part I Test Beam Measurements and Data Acquisition for the Phase I Upgrade of the CMS Pixel Detector; 3 Basic Concepts of Semiconductor Tracking Detectors ; 3.1 Semiconductor Sensors and Signal Formation; 3.1.1 Extrinsic Semiconductors; 3.1.2 The pn-Junction.
  • 3.1.3 Depletion Voltage, Capacitance, and Leakage Current3.1.4 Implant Segmentation; 3.1.5 Signal Formation; 3.2 Front-End Electronics and Detector Readout; 3.3 Pattern Recognition and Tracking; 3.3.1 Clustering; 3.3.2 Trajectory Reconstruction; 3.4 Detector Alignment; 3.5 Intrinsic Resolution; References; 4 The CMS Pixel Detector for Phase I; 4.1 Sensor Design; 4.2 The Readout Chip; 4.2.1 The Pixel Unit Cell; 4.2.2 The Double Column Periphery; 4.2.3 The ROC Controller and Interface; 4.2.4 Header and Pixel Data Format; 4.3 Detector Modules and the Token Bit Manager.
  • 4.3.1 TBM Header and Trailer4.4 Detector Geometry and Material Budget; 4.5 Power Supply, Readout, and Data Links; References; 5 Simulation of CMS Pixel Detector Modules; 5.1 Charge Deposition; 5.2 Charge Transport; 5.3 Digitization and Reconstruction; References; 6 The pxar Data Acquisition and Calibration Framework ; 6.1 The Digital Test Board; 6.1.1 Deserializers and Data Recording; 6.1.2 The Nios II CPU; 6.1.3 Trigger Generation; 6.2 The pxarCore Library; 6.2.1 The Software Architecture; 6.2.2 Event Building and Data Decoding; 6.2.3 Front-End Emulation for System Testing.

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