Title A Search for Displaced Leptons in the ATLAS Detector Author(s) Horyn, Lesya Publication Cham, 1. Imprint: Springer 2. Springer International Publishing, 2022. Description XVI, 146 p. 75 illus., 68 illus. in color : online resource Abstract Note This thesis presents a search for long-lived particles decaying into displaced electrons and/or muons with large impact parameters. This signature provides unique sensitivity to the production of theoretical lepton-partners, sleptons. These particles are a feature of supersymmetric theories, which seek to address unanswered questions in nature. The signature searched for in this thesis is difficult to identify, and in fact, this is the first time it has been probed at the Large Hadron Collider (LHC). It covers a long-standing gap in coverage of possible new physics signatures. This thesis describes the special reconstruction and identification algorithms used to select leptons with large impact parameters and the details of the background estimation. The results are consistent with background, so limits on slepton masses and lifetimes in this model are calculated at 95% CL, drastically improving on the previous best limits from the Large Electron Positron Collider (LEP) ISBN,Price 9783030916725 Keyword(s) 1. Accelerator Physics 2. EBOOK 3. EBOOK - SPRINGER 4. Elementary particles (Physics) 5. Elementary Particles, Quantum Field Theory 6. PARTICLE ACCELERATORS 7. PARTICLE PHYSICS 8. PARTICLES (NUCLEAR PHYSICS) 9. QUANTUM FIELD THEORY Item Type Book Multi-Media Links Please Click here for eBook Circulation Data Accession#   Call# Status Issued To Return Due On Physical Location I12495     On Shelf