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OverviewThis PhD thesis documents two of the highest-profile searches for supersymmetry performed at the ATLAS experiment using up to 80/fb of proton-proton collision data at a center-of-mass energy of 13 TeV delivered by the Large Hadron Collider (LHC) during its Run 2 (2015-2018). The signals of interest feature a high multiplicity of jets originating from the hadronisation of b-quarks and large missing transverse momentum, which constitutes one of the most promising final state signatures for discovery of new phenomena at the LHC. The first search is focused on the strong production of a pair of gluinos, with each gluino decaying into a neutralino and a top-antitop-quark pair or a bottom-antibottom-quark pair. The second search targets the pair production of higgsinos, with each higgsino decaying into a gravitino and a Higgs boson, which in turn is required to decay into a bottom-antibottom-quark pair. Both searches employ state-of-the-art experimental techniques and analysis strategiesat the LHC, resulting in some of the most restrictive bounds available to date on the masses of the gluino,neutralino, and higgsino in the context of the models explored. Full Product DetailsAuthor: Chiara RizziPublisher: Springer Nature Switzerland AG Imprint: Springer Nature Switzerland AG Edition: 1st ed. 2020 Weight: 0.617kg ISBN: 9783030528768ISBN 10: 3030528766 Pages: 279 Publication Date: 02 September 2020 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Table of ContentsStandard Model and Supersymmetry.- LHC and ATLAS.- Proton-Proton Interactions and Their Simulationproton-Proton Interactions and Their Simulation.- Event Reconstruction.- Statistical Methods.- Common Aspects to SUSY searches with Multiple b-jets and ETmiss.- Search for Gluino Air Production.- Search for Higgsino Pair Production.- Comparison with Other ATLAS and CMS Searches.- Conclusion.- Appendix.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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