skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states

Abstract

We consider search strategies for an extended Higgs sector at the high-luminosity LHC14 utilizing multitop final states. In the framework of a two Higgs doublet model, the purely top final states ($$t\bar{t}$$, 4t) are important channels for heavy Higgs bosons with masses in the wedge above 2m t and at low values of tanβ, while a 2b2t final state is most relevant at moderate values of tanβ. We find, in the $$t\bar{t}$$ H channel, with H→$$t\bar{t}$$, that both single and three lepton final states can provide statistically significant constraints at low values of tanβ for mA as high as ~750 GeV. When systematics on the $$t\bar{t}$$ background are taken into account, however, the three lepton final state is more powerful, though the precise constraint depends fairly sensitively on lepton fake rates. We also find that neither 2b2t nor $$t\bar{t}$$ final states provide constraints on additional heavy Higgs bosons with couplings to tops smaller than the top Yukawa due to expected systematic uncertainties in the tt background.

Authors:
 [1];  [2];  [3];  [4]
  1. Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada); Univ. of Cincinnati, OH (United States). Dept. of Physics
  2. European Organization for Nuclear Research (CERN), Geneva (Switzerland). TH-PH Division; UpHere, San Francisco, CA (United States)
  3. Wayne State Univ., Detroit, MI (United States). Dept. of Physics and Astronomy
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Theoretical Physics Group; Univ. of California, Berkeley, CA (United States). Berkeley Center for Theoretical Physics
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1430669
Grant/Contract Number:  
AC02-05CH11231; PHYS-1066293
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 93; Journal Issue: 7; 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

Gori, Stefania, Kim, Ian-Woo, Shah, Nausheen R., and Zurek, Kathryn M. Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.93.075038.
Gori, Stefania, Kim, Ian-Woo, Shah, Nausheen R., & Zurek, Kathryn M. Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states. United States. doi:10.1103/PhysRevD.93.075038.
Gori, Stefania, Kim, Ian-Woo, Shah, Nausheen R., and Zurek, Kathryn M. Fri . "Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states". United States. doi:10.1103/PhysRevD.93.075038. https://www.osti.gov/servlets/purl/1430669.
@article{osti_1430669,
title = {Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states},
author = {Gori, Stefania and Kim, Ian-Woo and Shah, Nausheen R. and Zurek, Kathryn M.},
abstractNote = {We consider search strategies for an extended Higgs sector at the high-luminosity LHC14 utilizing multitop final states. In the framework of a two Higgs doublet model, the purely top final states ($t\bar{t}$, 4t) are important channels for heavy Higgs bosons with masses in the wedge above 2mt and at low values of tanβ, while a 2b2t final state is most relevant at moderate values of tanβ. We find, in the $t\bar{t}$ H channel, with H→$t\bar{t}$, that both single and three lepton final states can provide statistically significant constraints at low values of tanβ for mA as high as ~750 GeV. When systematics on the $t\bar{t}$ background are taken into account, however, the three lepton final state is more powerful, though the precise constraint depends fairly sensitively on lepton fake rates. We also find that neither 2b2t nor $t\bar{t}$ final states provide constraints on additional heavy Higgs bosons with couplings to tops smaller than the top Yukawa due to expected systematic uncertainties in the tt background.},
doi = {10.1103/PhysRevD.93.075038},
journal = {Physical Review D},
number = 7,
volume = 93,
place = {United States},
year = {2016},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 31 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Echoes of the Electroweak Phase Transition: Discovering a Second Higgs Doublet through A 0 Z H 0
journal, November 2014


Complementarity between nonstandard Higgs boson searches and precision Higgs boson measurements in the MSSM
journal, February 2015


Jarlskog-like invariants for theories with scalars and fermions
journal, April 1995


Heavy Higgs bosons at 14 TeV and 100 TeV
journal, November 2015

  • Hajer, Jan; Li, Ying-Ying; Liu, Tao
  • Journal of High Energy Physics, Vol. 2015, Issue 11
  • DOI: 10.1007/JHEP11(2015)124

Tevatron top A FB versus LHC top physics
journal, January 2012


Minimal flavor violating two-Higgs-doublet model at the LHC
journal, December 2012


Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV
journal, May 2015


The hunt for the rest of the Higgs bosons
journal, June 2015

  • Craig, Nathaniel; D’Eramo, Francesco; Draper, Patrick
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)137

Signatures of discrete symmetries in the scalar sector
journal, December 1994


Search for a stable alignment limit in two-Higgs-doublet models
journal, May 2015


Production of heavy Higgs bosons and decay into top quarks at the LHC
journal, February 2016


Measuring the t t ¯ h coupling from same-sign dilepton + 2 b measurements
journal, November 2013


Scrutinizing the alignment limit in two-Higgs-doublet models: m h = 125 GeV
journal, October 2015


Fully covering the MSSM Higgs sector at the LHC
journal, June 2015

  • Djouadi, A.; Maiani, L.; Polosa, A.
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)168

MCFM for the Tevatron and the LHC
journal, August 2010


Higgs decay to top quarks at hadron colliders
journal, July 1994


CP -conserving two-Higgs-doublet model: The approach to the decoupling limit
journal, April 2003


PYTHIA 6.4 physics and manual
journal, May 2006


Maximally symmetric two Higgs doublet model with natural standard model alignment
journal, December 2014

  • Bhupal Dev, P. S.; Pilaftsis, Apostolos
  • Journal of High Energy Physics, Vol. 2014, Issue 12
  • DOI: 10.1007/JHEP12(2014)024

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
journal, July 2014

  • Alwall, J.; Frederix, R.; Frixione, S.
  • Journal of High Energy Physics, Vol. 2014, Issue 7
  • DOI: 10.1007/JHEP07(2014)079

Natural Standard Model Alignment in the Two Higgs Doublet Model
journal, July 2015


Suppression of flavor changing effects from neutral spinless meson exchange in gauge theories
journal, March 1979


Fundamental CP -violating quantities in an SU(2)⊗U(1) model with many Higgs doublets
journal, October 1994


Study of LHC searches for a lepton and many jets
journal, November 2012

  • Lisanti, Mariangela; Schuster, Philip; Strassler, Matthew
  • Journal of High Energy Physics, Vol. 2012, Issue 11
  • DOI: 10.1007/JHEP11(2012)081

Alignment limit of the NMSSM Higgs sector
journal, February 2016


LHC discovery potential for non-standard Higgs bosons in the 3b channel
journal, July 2012

  • Carena, Marcela; Gori, Stefania; Juste, Aurelio
  • Journal of High Energy Physics, Vol. 2012, Issue 7
  • DOI: 10.1007/JHEP07(2012)091

Properties of charged Higgs bosons
journal, February 1979


Exotic decays of a heavy neutral Higgs through HZ/AZ channel
journal, September 2014

  • Coleppa, Baradhwaj; Kling, Felix; Su, Shufang
  • Journal of High Energy Physics, Vol. 2014, Issue 9
  • DOI: 10.1007/JHEP09(2014)161

Impersonating the Standard Model Higgs boson: alignment without decoupling
journal, April 2014

  • Carena, Marcela; Low, Ian; Shah, Nausheen R.
  • Journal of High Energy Physics, Vol. 2014, Issue 4
  • DOI: 10.1007/JHEP04(2014)015

New LHC benchmarks for the $$\mathcal{CP}$$ CP -conserving two-Higgs-doublet model
journal, October 2015


A light supersymmetric Higgs sector hidden by a standard model-like Higgs
journal, July 2013

  • Delgado, Antonio; Nardini, Germano; Quiros, Mariano
  • Journal of High Energy Physics, Vol. 2013, Issue 7
  • DOI: 10.1007/JHEP07(2013)054

Search for a Higgs boson decaying into a b-quark pair and produced in association with b quarks in proton–proton collisions at 7 TeV
journal, May 2013


Searching for top flavor violating resonances
journal, August 2011


High-Precision Predictions for the Light C P -Even Higgs Boson Mass of the Minimal Supersymmetric Standard Model
journal, April 2014


Next-to-leading order QCD predictions for W + 2 jet and Z + 2 jet production at the CERN LHC
journal, November 2003


Constraining BSM physics at the LHC: four top final states with NLO accuracy in perturbative QCD
journal, July 2012


Dip or nothingness of a Higgs resonance from the interference with a complex phase
journal, September 2015


Associated production of a top-quark pair with vector bosons at NLO in QCD: impact on t t ¯ H $$ \mathrm{t}\overline{\mathrm{t}}\mathrm{H} $$ searches at the LHC
journal, February 2016

  • Maltoni, Fabio; Pagani, Davide; Tsinikos, Ioannis
  • Journal of High Energy Physics, Vol. 2016, Issue 2
  • DOI: 10.1007/JHEP02(2016)113

Matching matrix elements and shower evolution for top-pair production in hadronic collisions
journal, January 2007

  • Mangano, Michelangelo L.; Moretti, Mauro; Piccinini, Fulvio
  • Journal of High Energy Physics, Vol. 2007, Issue 01
  • DOI: 10.1088/1126-6708/2007/01/013

MSSM Higgs boson searches at the LHC: benchmark scenarios after the discovery of a Higgs-like particle
journal, September 2013


$$ t\overline t {W^{\pm }} $$ production and decay at NLO
journal, July 2012

  • Campbell, John M.; Ellis, R. Keith
  • Journal of High Energy Physics, Vol. 2012, Issue 7
  • DOI: 10.1007/JHEP07(2012)052