Searches for Heavy Quark States at ATLAS

7th International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions

Cheng, H.-C.^1

University of Michigan, Ann Arbor, United States^1

关键词: Center-of-mass energies;    Composite higgs;    Extra dimensions;    Little higgs;    Proton proton collisions;    Randall-Sundrum;    Resonance searches;    Third generation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/770/1/012008/pdf
DOI  :  10.1088/1742-6596/770/1/012008

来源: IOP

【 摘 要 】

This talk highlights the latest results of heavy quark searches from the ATLAS collaboration, mainly on resonance searches and vector-like quarks (VLQs) searches. Searches for it resonances using lepton-plus-jets events in proton-proton collisions at center-of-mass energy of 8 and 13 TeV are presented. Limits are set for BSM particles such as topcolor-assisted technicolor Z'TC, Kaluza-Klein (K-K) gluons gKK and K-K excitations of graviton GKKin the Randall-Sundrum model of extra dimensions. VLQs arise naturally in many models such as Little Higgs and Composite Higgs and typically couple preferably to the third generation SM quarks and weak bosons. Limits are set for vector-like bottom (B) and top (T) quarks decay to lepton-plus-jets final states via Hb+X and Ht+X channels in two analyses using 8 and 13 TeV datasets from ATLAS.