Electroweak Physics at the Large Hadron Collider with the ATLAS Detector: Standard Model Measurement, Supersymmetry Searches, Excesses, and Upgrade Electronics (Springer Theses) - Softcover

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Resseguie, Elodie

 
9783030570187: Electroweak Physics at the Large Hadron Collider with the ATLAS Detector: Standard Model Measurement, Supersymmetry Searches, Excesses, and Upgrade Electronics (Springer Theses)
Softcover
ISBN 10: 3030570185 ISBN 13: 9783030570187
Verlag: Springer, 2021

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Über die Autorin bzw. den Autor

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.  

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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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Verlag
Springer
Erscheinungsdatum
2021
Sprache
Englisch
ISBN 10 
3030570185
ISBN 13 
9783030570187
Einband
Taschenbuch
Auflage
1
Anzahl der Seiten
348
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