TY - JOUR
T1 - Search strategies for TeV scale fermionic top partners with charge 2/3
AU - Backović, Mihailo
AU - Flacke, Thomas
AU - Kim, Jeong Han
AU - Lee, Seung J.
N1 - Publisher Copyright:
© 2016, The Author(s).
PY - 2016/4/1
Y1 - 2016/4/1
N2 - 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 σT ′ ∼ 70 − 140 (30 − 65) fb for MT ′ = 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 σT ′ ∼ 27 − 60 (13 − 24) fb for MT ′ = 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 where ΓT ′ ≪ MT ′.
AB - 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 σT ′ ∼ 70 − 140 (30 − 65) fb for MT ′ = 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 σT ′ ∼ 27 − 60 (13 − 24) fb for MT ′ = 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 where ΓT ′ ≪ MT ′.
KW - Beyond Standard Model
KW - Technicolor and Composite Models
UR - http://www.scopus.com/inward/record.url?scp=84962690805&partnerID=8YFLogxK
U2 - 10.1007/JHEP04(2016)014
DO - 10.1007/JHEP04(2016)014
M3 - Article
AN - SCOPUS:84962690805
SN - 1126-6708
VL - 2016
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 4
M1 - 14
ER -