CERN Accelerating science

ATLAS Slides
Report number	ATL-PHYS-SLIDE-2024-060
Title	Search for vector-like quarks, heavy neutral leptons and long-lived particles in ATLAS and CMS experiments
Author(s)	Grancagnolo, Sergio (INFN Lecce e Universita del Salento (IT))
Corporate author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Submitted to	58th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 24 - 31 Mar 2024
Submitted by	[email protected] on 08 Apr 2024
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Heavy Neutral Leptons ; Vector-like quarks ; Long-lived particles ; Majorana neutrinos ; Same-sign leptons ; Emerging jets ; Displaced vertices ; EXOTICS
Abstract	Various theories beyond the Standard Model predict heavy neutral leptons, or long-lived particles with unique signatures which are difficult to reconstruct. Another area of interest are vector-like quarks (VLQs) which lie at the heart of many extensions to the Standard Model seeking to address the Hierarchy Problem, as they can naturally cancel the mass divergence for the Higgs boson. This talk will present new results for these searches from the ATLAS and CMS experiments.