Abstract
The summary is given for the exotic, non-SUSY searches for new physics with the ATLAS detector at Large Hadron Collider(LHC). The results presented use data collected at center-of-mass energies of , for data sets corresponding to a variety of integrated luminosities. Searches using leptons, photons, missing transverse energy, and jets are performed, as well as searches requiring custom jet and track reconstruction, and searches for so-called lepton jets. No deviations from Standard Model expectations are observed, hence constraints are placed on the phase space of available theoretical models.
Highlights
Background estimationW+jets, Z+jets, top-quark-related background are constrained using MC samples in control regions multi-jet background, non-collision background are estimated, small contribution / negligible background fit — constrain the normalization of dominant background, reduce the uncertaintiesSearches for visible final statesThe mediators couple to Standard Model (SM) particles — interpreting the Dark Matter (DM) models in resonance searches is interestingThe visible final states searches are : Dijet: high mass resonance search, m(jj) > 1.1 TeV Trigger-level dijet analysis (TLA): using only trigger level jets to reach lower mjj Di-bjet Boosted dijet + ISR analysis: light resonances boosted via recoil from high-pT ISR photon or jet Di-lepton ttbar resonance 4 top Example diagrams for visible final states ATLAS Paper EXOT 2017-032 Search Strategy1
After the observation of Higgs Boson in 2012 at ATLAS and CMS experiments, all the elementary particles predicted by the Standard Model (SM) have been observed
Indirect detection: the detection of standard model (SM) particles produced in decays of DM in the universe;
Summary
After the observation of Higgs Boson in 2012 at ATLAS and CMS experiments, all the elementary particles predicted by the Standard Model (SM) have been observed. Despite being the most successful theory of particle physics to date, the Standard Model have few problems Hierarchy problem No explanation of Dark Matter, Dark Energy No neutrino mass No matter-antimatter asymmetry. The SM total production cross-section measurements in the ATLAS experiment show high consistency with the theoretical expectations
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