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

Title: Detecting heavy Higgs bosons from natural SUSY at a 100 TeV hadron collider

Journal Article · · Physical Review D

Supersymmetric models with radiatively driven naturalness enjoy low electroweak fine tuning whilst respecting LHC search limits on gluinos and top squarks and allowing for mh ≃ 125 GeV. While the heavier Higgs bosons H and A may have TeV-scale masses, the supersymmetry (SUSY)-conserving μ parameter must lie in the few hundred GeV range. Thus, in natural SUSY models there should occur large heavy Higgs boson branching fractions to electroweakinos, with Higgs boson decays to Higgsino plus gaugino dominating when they are kinematically accessible. These SUSY decays can open up new avenues for discovery. We investigate the prospects of discovering heavy neutral Higgs bosons H and A decaying into light plus heavy chargino pairs which can yield a four isolated lepton plus missing transverse energy signature at the LHC and at a future 100 TeV pp collider. We find that the discovery of heavy Higgs decay to electroweakinos via its 4ℓ decay mode is very difficult at HL-LHC. For FCC-hh or SPPC, we study the H,A→SUSY reaction along with dominant physics backgrounds from the Standard Model and devise suitable selection requirements to extract a clean signal for FCC-hh or SPPC with √s=100 TeV, assuming an integrated luminosity of 15 ab-1. We find that while a conventional cut-and-count analysis yields a signal statistical significance greater than 5σ for mA,H ~ 1.1 TeV - 1.65 TeV, a boosted decision-tree analysis allows for heavy Higgs signal discovery at FCC-hh or SPPC for mA,H ~ 1 TeV - 2 TeV.

Research Organization:
Univ. of Oklahoma, Norman, OK (United States); Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); Ministry of Science and Technology (MOST) of Taiwan
Grant/Contract Number:
SC-0009956; SC-0017647; SC0009956; SC0017647; 110-2811-M-002-574; 110-2639-M-002-002-ASP
OSTI ID:
1870180
Alternate ID(s):
OSTI ID: 1980083
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 105 Journal Issue: 9; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (80)

Testing the Higgs sector of the minimal supersymmetric standard model at large hadron colliders journal October 1992
Implications of non-universality of soft terms in supersyrnmetric grand unified theories journal February 1995
Higgs-boson signals in superstring-inspired models at hadron supercolliders journal September 1987
Supersymmetric Higgs and radiative electroweak breaking journal November 2007
Upper Bound of the Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model journal January 1991
Observability of the heavy neutral SUSY Higgs bosons decaying into neutralinos at the LHC journal November 2006
Higgs Boson theory and phenomenology journal January 2003
Renormalization of Supersymmetry Breaking Parameters Revisited journal February 1984
Radiative corrections to the masses of supersymmetric Higgs bosons journal March 1991
Weak symmetry breaking by radiative corrections in broken supergravity journal June 1983
Search for Higgs bosons of minimal supersymmetry: Impact of supersymmetric decay modes journal February 1993
Upper bounds on supersymmetric particle masses journal August 1988
Electroweak symmetry breaking with non-universal scalar soft terms and large tan β solutions journal January 1995
Locally supersymmetric SU(5) grand unification journal December 1982
Electroweak precision observables in the minimal supersymmetric standard model journal March 2006
Supersymmetry, naturalness and light higgsinos journal May 2014
Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs journal August 2009
Detecting Higgs boson decays to neutralinos at hadron supercolliders journal July 1994
Heavy Higgs as a portal to the supersymmetric electroweak sector journal April 2019
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC journal September 2012
SU(2)L × U(1) symmetry breaking as a radiative effect of supersymmetry breaking in GUTs journal April 1982
Gauge hierarchy in a supersymmetric model journal February 1982
Supersymmetry, naturalness, and signatures at the CERN LHC journal May 2006
Higgs boson physics in the s-channel at μ+μ− colliders journal July 1997
Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC journal September 2012
Invisible decays of Higgs bosons in supersymmetric models journal February 1988
Higgs production and decay: analytic results at next-to-leading order QCD journal December 2005
SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM journal June 2013
Can the mass of the lightest Higgs boson of the minimal supersymmetric model be larger than m Z ? journal April 1991
Direct, indirect and collider detection of neutralino dark matter in SUSY models with non-universal Higgs masses journal July 2005
SUSY Higgs at the LHC: effects of light charginos and neutralinos journal August 2000
Nonuniversal soft supersymmetry breaking and dark matter journal September 1997
Weak Scale Supersymmetry book January 2006
Search for Heavy Higgs Bosons Decaying into Two Tau Leptons with the ATLAS Detector Using p p Collisions at s = 13 TeV journal July 2020
SUSY decays of Higgs particles journal May 1996
Supersymmetric Higgs boson decays in the MSSM with explicit CP violation journal September 2002
NLO QCD corrections to pseudoscalar Higgs production in the MSSM journal August 2011
On the NLO QCD corrections to the production of the heaviest neutral Higgs scalar in the MSSM journal June 2012
Search for dark matter in events with a hadronically decaying vector boson and missing transverse momentum in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector journal October 2018
Dynamical breaking of supersymmetry journal October 1981
Weak interaction breakdown induced by supergravity journal January 1983
Searching for heavy Higgs in supersymmetric final states at the LHC journal April 2021
Implications of precision electroweak experiments for m t , ρ 0 , sin 2 θ W , and grand unification journal August 1991
SusHi Bento: Beyond NNLO and the heavy- top limit journal March 2017
Radiative natural supersymmetry: Reconciling electroweak fine-tuning and the Higgs boson mass journal June 2013
Decays of Higgs Bosons to Neutralinos and Charginos in the Minimal Supersymmetric Model: Calculation and Phenomenology journal August 1987
Prospects for Higgs coupling measurements in SUSY with radiatively-driven naturalness journal August 2015
MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond journal July 2019
NLO QCD bottom corrections to Higgs boson production in the MSSM journal November 2010
Minimal low-energy supergravity journal July 1983
How conventional measures overestimate electroweak fine-tuning in supersymmetric theory journal November 2013
Naturalness and superpartner masses or when to give up on weak scale supersymmetry journal August 1995
Implications of naturalness for the heavy Higgs bosons of supersymmetry journal October 2014
Supersymmetry and the scale of unification journal September 1981
Probing the desert using gauge coupling unification journal May 1991
Search for supersymmetry in final states with two or three soft leptons and missing transverse momentum in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV journal April 2022
Next-to-Next-to-Leading Order Higgs Production at Hadron Colliders journal May 2002
The locally supersymmetric geometrical hierarchy model journal October 1983
Aspects of Grand Unified Models with Softly Broken Supersymmetry journal September 1982
Search for top squark pair production in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV using single lepton events journal October 2017
Higgs bosons in supersymmetric models (III). Decays into neutralinos and charginos journal September 1988
Search for supersymmetry in proton-proton collisions at 13 TeV using identified top quarks journal January 2018
Exploration of the MSSM with non-universal Higgs masses journal March 2003
Radiative Natural Supersymmetry with a 125 GeV Higgs Boson journal October 2012
On the generalized harmonic polylogarithms of one complex variable journal June 2011
SUSY models under siege: LHC constraints and electroweak fine-tuning journal June 2014
RunDec: a Mathematica package for running and decoupling of the strong coupling and quark masses journal December 2000
Higgs boson production in bottom quark fusion at next-to-next-to-leading order journal July 2003
Upper bounds on sparticle masses from naturalness or how to disprove weak scale supersymmetry journal February 2016
Study of MSSM heavy Higgs bosons decaying into charginos and neutralinos journal October 2016
Natural SUSY endures journal September 2012
Naturalness constraints in supersymmetric theories with non-universal soft terms journal September 1995
Comparison of grand unified theories with electroweak and strong coupling constants measured at LEP journal May 1991
Asymptotic formulae for likelihood-based tests of new physics journal February 2011
Color-singlet production at NNLO in MCFM journal December 2016
What hadron collider is required to discover or falsify natural supersymmetry? journal November 2017
The MSSM parameter space with non-universal Higgs masses journal July 2002
Search for new phenomena with the $$M_{\mathrm {T2}}$$ M T 2 variable in the all-hadronic final state produced in proton–proton collisions at $$\sqrt{s} = 13$$ s = 13 $$\,\text {TeV}$$ TeV journal October 2017
Searches for electroweak production of supersymmetric particles with compressed mass spectra in s = 13 TeV p p collisions with the ATLAS detector journal March 2020
Two-loop light fermion contribution to Higgs production and decays journal August 2004