Electroweak physics at the large hadron collider with the atlas detector : standard model measurement, supersymmetry searches, excesses, and upgrade electronics /
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| Author / Creator: | Resseguie, Elodie, author. |
|---|---|
| Imprint: | Cham, Switzerland : Springer, [2020] |
| Description: | 1 online resource |
| Language: | English |
| Series: | Springer Theses Springer theses. |
| Subject: | |
| Format: | E-Resource Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/12608607 |
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| 100 | 1 | |a Resseguie, Elodie, |e author. | |
| 245 | 1 | 0 | |a Electroweak physics at the large hadron collider with the atlas detector : |b standard model measurement, supersymmetry searches, excesses, and upgrade electronics / |c Elodie Resseguie. |
| 264 | 1 | |a Cham, Switzerland : |b Springer, |c [2020] | |
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| 490 | 1 | |a Springer Theses | |
| 500 | |a "Doctoral Thesis accepted by University of Pennsylvania, Philadelphia, USA." | ||
| 520 | |a This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance. | ||
| 505 | 0 | |a Intro -- Supervisor's Foreword -- Abstract -- Preface -- Hardware: HCC Testing and Irradiation -- Operation: TRT DAQ -- Standard Model Measurement: WZ Cross Section -- Electroweak Supersymmetry: Searches and Excess Follow-Up -- References -- Acknowledgements -- Contents -- 1 Introduction -- 2 Theoretical Framework -- 2.1 Introduction to the Standard Model -- 2.1.1 Symmetries and Currents -- 2.1.2 Electromagnetic Force: Quantum Electrodynamics -- 2.1.3 Strong Force: Quantum Chromodynamics -- 2.1.4 Weak Force and Electroweak Unification | |
| 505 | 8 | |a 2.1.5 Spontaneous Symmetry Breaking and the Higgs Mechanism -- 2.1.6 EWK Symmetry Breaking and the Higgs Mechanism -- 2.2 Open Questions of the Standard Model -- 2.3 Introduction to Supersymmetry -- 2.3.1 Minimal Supersymmetric Standard Model -- References -- 3 LHC and the ATLAS Detector -- 3.1 The Large Hadron Collider -- 3.2 The ATLAS Detector -- 3.2.1 The Inner Detector -- 3.2.2 The Calorimeters -- 3.2.3 The Muon Spectrometer -- 3.3 Particle Reconstruction and Identification -- 3.4 Trigger System -- References -- 4 HL-LHC Inner Detector Upgrade -- 4.1 Motivation for the Detector Upgrade | |
| 505 | 8 | |a 4.2 Inner Tracker: ITk -- 4.3 Strips Read-Out System -- 4.4 HCC130 Testing -- 4.4.1 HCC130 Signals -- 4.4.2 Testing Setup -- 4.4.3 Description of the FPGA Code -- 4.4.4 Functional Tests of the HCC130 -- 4.4.5 Testing the Analog Monitor (AM) -- 4.5 HCC130 Irradiation -- 4.5.1 Motivation: Current Increase at Low Total Ionizing Dose -- 4.5.2 Facility and Setup -- 4.5.3 Registers and Voltages Monitored -- 4.5.4 Pre-irradiation Calibrations -- 4.5.5 Results -- 4.6 Future Improvements and Studies -- References -- 5 WpmZ Cross-Section Measurement at sqrts = 13 TeV -- 5.1 Cross Section Methodology | |
| 505 | 8 | |a 6.2 Wino-Bino Interpretation -- 6.3 Higgsino Interpretation -- References -- 7 Search for Wino-Bino Production Decaying via WZ at sqrts=13 TeV -- 7.1 Signal Signature -- 7.2 Simplified Model Framework -- 7.3 Overview of Backgrounds -- 7.4 Data Set and MC Samples -- 7.5 Object and Event Selection -- 7.5.1 Object Selection -- 7.5.2 Motivation for mTmin -- 7.5.3 Event Selection -- 7.6 Background Estimation -- 7.6.1 WZ Background -- 7.6.2 Reducible Background Estimation -- 7.7 Uncertainties -- 7.8 Two Leptons and Jets Final State -- 7.8.1 Event Selection -- 7.8.2 Background Modeling -- 7.8.3 Results | |
| 504 | |a Includes bibliographical references. | ||
| 588 | |a Description based on online resource; title from digital title page (viewed on January 15, 2021). | ||
| 650 | 0 | |a Particles (Nuclear physics) |0 http://id.loc.gov/authorities/subjects/sh85098374 | |
| 650 | 0 | |a Quantum field theory. |0 http://id.loc.gov/authorities/subjects/sh85109461 | |
| 650 | 0 | |a Statistics. |0 http://id.loc.gov/authorities/subjects/sh85127580 | |
| 650 | 7 | |a Particles (Nuclear physics) |2 fast |0 (OCoLC)fst01054130 | |
| 650 | 7 | |a Quantum field theory. |2 fast |0 (OCoLC)fst01085105 | |
| 650 | 7 | |a Statistics. |2 fast |0 (OCoLC)fst01132103 | |
| 655 | 4 | |a Electronic books. | |
| 655 | 0 | |a Electronic books. | |
| 776 | 0 | 8 | |i Print version: |z 3030570150 |z 9783030570156 |w (OCoLC)1176314887 |
| 830 | 0 | |a Springer theses. |0 http://id.loc.gov/authorities/names/no2010186160 | |
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| 928 | |t Library of Congress classification |a QC793.2 .R47 2020 |l Online |c UC-FullText |u https://link.springer.com/10.1007/978-3-030-57016-3 |z Springer Nature |g ebooks |i 12624215 | ||