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

Abstract

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.

Authors:
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:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1288747
Alternate Identifier(s):
OSTI ID: 1305447
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
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Kim, Jeong Han, Kong, Kyoungchul, Lee, Seung J., and Mohlabeng, Gopolang. Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.94.035023.
Kim, Jeong Han, Kong, Kyoungchul, Lee, Seung J., & Mohlabeng, Gopolang. Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC. United States. https://doi.org/10.1103/PhysRevD.94.035023
Kim, Jeong Han, Kong, Kyoungchul, Lee, Seung J., and Mohlabeng, Gopolang. Wed . "Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC". United States. https://doi.org/10.1103/PhysRevD.94.035023. https://www.osti.gov/servlets/purl/1288747.
@article{osti_1288747,
title = {Probing TeV scale top-philic resonances with boosted top-tagging at the high luminosity LHC},
author = {Kim, Jeong Han and Kong, Kyoungchul and Lee, Seung J. and Mohlabeng, Gopolang},
abstractNote = {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.},
doi = {10.1103/PhysRevD.94.035023},
journal = {Physical Review D},
number = 3,
volume = 94,
place = {United States},
year = {Wed Aug 24 00:00:00 EDT 2016},
month = {Wed Aug 24 00:00:00 EDT 2016}
}

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Cited by: 17 works
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