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

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

Elodie Resseguie (Autor)

eBook Download: PDF

2020 | 1st ed. 2020
XXIII, 322 Seiten
Springer International Publishing (Verlag)
978-3-030-57016-3 (ISBN)

Infos

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.

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.  

Produkt-Details

• Erscheint lt. Verlag: 3.11.2020
• Reihe/Serie: Springer Theses
• Reihe/Serie: Springer Theses
• Zusatzinfo: XXIII, 322 p. 227 illus., 212 illus. in color.
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Mathematik ► Statistik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Theoretische Physik
• Schlagworte: ATLAS detector • Detector electronics under radiation • Electroweak Supersymmetry • gauginos and higgsinos • HL-LHC • recursive jigsaw reconstruction • Supersymmetric partners of Higgs and gauge bosons
• ISBN-10: 3-030-57016-9 / 3030570169
• ISBN-13: 978-3-030-57016-3 / 9783030570163