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순수물리이론 연구단
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Search strategies for TeV scale fermionic top partners with charge 2/3

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Title
Search strategies for TeV scale fermionic top partners with charge 2/3
Author(s)
Mihailo Backovic; Thomas Flacke; Jeong Han Kim; Seung J. Lee
Publication Date
2016-04
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v., no.4, pp.014 -
Publisher
SPRINGER
Abstract
Searches for fermionic top partners at the TeV scale will bring forward a new final state kinematic regime and event topologies, where Run I search strategies will inevitably fail. We propose concrete search strategies for singly produced charge 2/3 fermionic top partners (T') adequate for LHC Run II. Our analysis spans over all of the T' decay modes (i.e. tZ, th and Wb) where we present detailed discussion of the search performances, signal efficiencies and backgrounds rates. Our LHC Run II search proposals utilize signatures with large missing energy and leptons, as well as jet substructure observables for tagging of boosted heavy SM states, customized b-tagging tactics and forward jet tagging. We analyze the prospects for discovery and exclusion of T' models within the framework of partially composite quarks at the LHC Run II. Our results show that the LHC Run II has good prospects for observing T' models which predict single production cross section of sigma(T') similar to 70-140(30-65) fb for M-T' = 1(1.5) TeV respectively with 100 fb(-1) of integrated luminosity, depending on the branching ratios of the T'. Similarly, we find that cross sections of sigma(T') similar to 27-60(13-24) fb for M-T' = 1(1.5) TeV respectively can be excluded with the same amount of data. Our results are minimally model dependent and can be applied to most T' models whe re Gamma(T') << M-T' c The Authors.
URI
http://pr.ibs.re.kr/handle/8788114/4840
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
Files in This Item:
10.1007_JHEP04(2016)014.pdfDownload

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