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Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC

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Title
Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC
Author(s)
Jeong Han Kim; Kong K.; Lee S.J.; Mohlabeng G.
Publication Date
2016-08
Journal
PHYSICAL REVIEW D, v.94, no.3, pp.035023 -
Publisher
AMER PHYSICAL SOC
Abstract
We investigate the discovery potential of singly produced top-philic resonances at the high luminosity (HL) LHC in the four-top final state. Our analysis spans over the fully hadronic, semileptonic, and same-sign dilepton channels where we present concrete search strategies adequate to a boosted kinematic regime and high jet-multiplicity environments. We utilize the template overlap method with newly developed template observables for tagging boosted top quarks, a large-radius jet variable MJ, and customized b-tagging tactics for background discrimination. Our results show that the same-sign dilepton channel gives the best sensitivity among the considered channels, with an improvement of significance up to 10%-20% when combined with boosted top-tagging. Both the fully hadronic and semileptonic channels yield comparable discovery potential and contribute to further enhancements in the sensitivity by combining all channels. Finally, we show the sensitivity of a top-philic resonance at the LHC and HL-LHC by showing the 2σ exclusion limit and 5σ discovery reach, including a combination of all three channels. © 2016 American Physical Society
URI
http://pr.ibs.re.kr/handle/8788114/2798
DOI
10.1103/PhysRevD.94.035023
ISSN
1550-7998
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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