CMS Pixel Detector Upgrade and Top Quark Pole Mass Determination

  • Simon┬áSpannagel

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxvii
  2. Simon Spannagel
    Pages 17-32
  3. Test Beam Measurements and Data Acquisition for the Phase I Upgrade of the CMS Pixel Detector

    1. Front Matter
      Pages 33-33
    2. Simon Spannagel
      Pages 55-67
    3. Simon Spannagel
      Pages 69-74
    4. Simon Spannagel
      Pages 89-109
    5. Simon Spannagel
      Pages 111-143
  4. Determination of the Normalized t+jet Invariant Mass Distribution and Measurement of the Top Quark Mass

  5. Back Matter
    Pages 231-274

About this book


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.


Top Quark Pole Mass Silicon Pixel Detector Semiconductor Tracking Detectors Cluster Interpolation Method Cluster Skewness Position Resolution Optimisation Detector Tracking Optimization Test Beam Measurement Dileptonic Top Quark Pair with Jets

Authors and affiliations

  • Simon┬áSpannagel
    • 1
  1. 1.European Organization for Nuclear Research (CERN)GenevaSwitzerland

Bibliographic information

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