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

Here, 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, semi-leptonic, 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 (TOM) with newly developed template observables for tagging boosted top quarks, a large-radius jet variable $$M_J$$ 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 semi-leptonic 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 $$2\sigma$$ exclusion limit and $$5\sigma$$ discovery reach, including a combination of all three channels.
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [3] ; ORCiD logo [4]
  1. Korea Advanced Institute of Science and Technology, Daejeon (Korea); Institute for Basic Science (IBS), Daejeon (Republic of Korea)
  2. Univ. of Kansas, Lawrence, KS (United States)
  3. Korea Univ., Seoul (Korea); Korea Institute for Advanced Study, Seoul (Korea)
  4. Univ. of Kansas, Lawrence, KS (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
FERMILAB-PUB-16-125-T; arXiv:1604.07421
Journal ID: ISSN 2470-0010; PRVDAQ; 1452565
Grant/Contract Number:
AC02-07CH11359; FG02-12ER41809; SC0007863
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2470-0010
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States