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Title: Heavy Higgs bosons at low tan β: from the LHC to 100 TeV

We present strategies to search for heavy neutral Higgs bosons decaying to top quark pairs, as often occurs at low tan β in type II two Higgs doublet models such as the Higgs sector of the MSSM. The resonant production channel is unsatisfactory due to interference with the SM background. We instead propose to utilize same-sign dilepton signatures arising from the production of heavy Higgs bosons in association with one or two top quarks and subsequent decay to a top pair. We find that for heavier neutral Higgs bosons the production in association with one top quark provides greater sensitivity than production in association with two top quarks. We obtain current limits at the LHC using Run I data at 8 TeV and forecast the sensitivity of a dedicated analysis during Run II at 14 TeV. Then we perform a detailed BDT study for the 14 TeV LHC and a future 100 TeV collider.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [1]
  1. Univ. of California, Santa Barbara, CA (United States). Dept. of Physics
  2. The Hong Kong Univ. of Science and Technology, Kowloon (China). Dept. of Physics. Inst. for Advanced Study
  3. The Hong Kong Univ. of Science and Technology, Kowloon (China). Dept. of Physics
Publication Date:
Grant/Contract Number:
SC0014129; SC0011702; HUKST4/CRF/13G; 16304315; 16312716
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Univ. of California, Santa Barbara, CA (United States); The Hong Kong Univ. of Science and Technology, Kowloon (China)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Research Grants Council of Hong Kong (China)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Higgs physics
OSTI Identifier:
1425797

Craig, Nathaniel, Hajer, Jan, Li, Ying-Ying, Liu, Tao, and Zhang, Hao. Heavy Higgs bosons at low tan β: from the LHC to 100 TeV. United States: N. p., Web. doi:10.1007/JHEP01(2017)018.
Craig, Nathaniel, Hajer, Jan, Li, Ying-Ying, Liu, Tao, & Zhang, Hao. Heavy Higgs bosons at low tan β: from the LHC to 100 TeV. United States. doi:10.1007/JHEP01(2017)018.
Craig, Nathaniel, Hajer, Jan, Li, Ying-Ying, Liu, Tao, and Zhang, Hao. 2017. "Heavy Higgs bosons at low tan β: from the LHC to 100 TeV". United States. doi:10.1007/JHEP01(2017)018. https://www.osti.gov/servlets/purl/1425797.
@article{osti_1425797,
title = {Heavy Higgs bosons at low tan β: from the LHC to 100 TeV},
author = {Craig, Nathaniel and Hajer, Jan and Li, Ying-Ying and Liu, Tao and Zhang, Hao},
abstractNote = {We present strategies to search for heavy neutral Higgs bosons decaying to top quark pairs, as often occurs at low tan β in type II two Higgs doublet models such as the Higgs sector of the MSSM. The resonant production channel is unsatisfactory due to interference with the SM background. We instead propose to utilize same-sign dilepton signatures arising from the production of heavy Higgs bosons in association with one or two top quarks and subsequent decay to a top pair. We find that for heavier neutral Higgs bosons the production in association with one top quark provides greater sensitivity than production in association with two top quarks. We obtain current limits at the LHC using Run I data at 8 TeV and forecast the sensitivity of a dedicated analysis during Run II at 14 TeV. Then we perform a detailed BDT study for the 14 TeV LHC and a future 100 TeV collider.},
doi = {10.1007/JHEP01(2017)018},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2017,
place = {United States},
year = {2017},
month = {1}
}