Elodie Resseguie

Electroweak Physics at the Large Hadron Collider with the ATLAS Detector (eBook, PDF)

Standard Model Measurement, Supersymmetry Searches, Excesses, and Upgrade Electronics

• Format: PDF

Produktbeschreibung

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.

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Produktdetails

• Verlag: Springer Nature Switzerland
• Seitenzahl: 322
• Erscheinungstermin: 3. November 2020
• Englisch
• ISBN-13: 9783030570163
• Artikelnr.: 61344521

Autorenporträt

Elodie received a B.S. in electrical engineering, with a minor in physics, from the University of California, Davis in 2014, and a Ph.D. in physics from the University of Pennsylvania in 2019. Elodie is currently a Chamberlain postdoctoral fellow at Lawrence Berkeley National Laboratory working on the ATLAS experiment.

Inhaltsangabe

Introduction.- Theoretical Framework.- LHC and the ATLAS Detector.- HL-LHC Inner Detector Upgrade.- W±Z Cross-Section Measurement at ps = 13 TeV.- Searches for Electroweak SUSY: Motivation and Models.- Search for wino-bino production decaying via WZ at ps = 13 TeV.

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