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

Title: Same-sign Higgsino production at the CERN LHC: How not to hunt for natural supersymmetry

Abstract

We examine the prospects for detecting light charged higgsinos that are expected to be a necessary feature of natural SUSY models via pp→$$\widetilde{W}$$$±\atop{1}$$$\widetilde{W}$$$±\atop{1}$$jj+X processes arising dominantly from W±W± fusion at LHC13. The signal will be a pair of same-sign leptons (e or μ) in events with two relatively forward, hemispherically-separated jets with a large rapidity gap. We find that even though the higgsinos have a full-strength SU(2) gauge couplings to W-bosons, the LHC13 cross section for the production of same sign higgsino pairs is smaller than 0.02 fb over most of the interesting range of natural SUSY parameters, even before leptonic branching fractions of the chargino are included. This cross section is strongly suppressed because the two neutral Majorana higgsinos can be combined into a single Dirac neutralino if the bino and the winos are much heavier than the higgsinos, as is the case in natural SUSY models: in this limit, higgsino couplings to W-bosons exhibit an emergent (approximate) U(1)ino global symmetry that suppresses same sign higgsino production by vector boson fusion. We conclude that this channel is not a viable way to search for natural SUSY even at the high luminosity upgrade of the Large Hadron Collider.

Authors:
 [1];  [1]
  1. Univ. of Hawaii, Honolulu, HI (United States)
Publication Date:
Research Org.:
Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1598676
Alternate Identifier(s):
OSTI ID: 1234107
Grant/Contract Number:  
SC0010504
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 92; Journal Issue: 11; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Stengel, Patrick, and Tata, Xerxes. Same-sign Higgsino production at the CERN LHC: How not to hunt for natural supersymmetry. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.92.115024.
Stengel, Patrick, & Tata, Xerxes. Same-sign Higgsino production at the CERN LHC: How not to hunt for natural supersymmetry. United States. doi:10.1103/PhysRevD.92.115024.
Stengel, Patrick, and Tata, Xerxes. Wed . "Same-sign Higgsino production at the CERN LHC: How not to hunt for natural supersymmetry". United States. doi:10.1103/PhysRevD.92.115024. https://www.osti.gov/servlets/purl/1598676.
@article{osti_1598676,
title = {Same-sign Higgsino production at the CERN LHC: How not to hunt for natural supersymmetry},
author = {Stengel, Patrick and Tata, Xerxes},
abstractNote = {We examine the prospects for detecting light charged higgsinos that are expected to be a necessary feature of natural SUSY models via pp→$\widetilde{W}$$±\atop{1}$$\widetilde{W}$$±\atop{1}$jj+X processes arising dominantly from W±W± fusion at LHC13. The signal will be a pair of same-sign leptons (e or μ) in events with two relatively forward, hemispherically-separated jets with a large rapidity gap. We find that even though the higgsinos have a full-strength SU(2) gauge couplings to W-bosons, the LHC13 cross section for the production of same sign higgsino pairs is smaller than 0.02 fb over most of the interesting range of natural SUSY parameters, even before leptonic branching fractions of the chargino are included. This cross section is strongly suppressed because the two neutral Majorana higgsinos can be combined into a single Dirac neutralino if the bino and the winos are much heavier than the higgsinos, as is the case in natural SUSY models: in this limit, higgsino couplings to W-bosons exhibit an emergent (approximate) U(1)ino global symmetry that suppresses same sign higgsino production by vector boson fusion. We conclude that this channel is not a viable way to search for natural SUSY even at the high luminosity upgrade of the Large Hadron Collider.},
doi = {10.1103/PhysRevD.92.115024},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 11,
volume = 92,
place = {United States},
year = {2015},
month = {12}
}

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

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at $ \sqrt{s} $ = 8 TeV
journal, June 2014

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2014, Issue 6
  • DOI: 10.1007/JHEP06(2014)055

Searches for supersymmetry using the M T2 variable in hadronic events produced in pp collisions at 8 TeV
journal, May 2015

  • Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.
  • Journal of High Energy Physics, Vol. 2015, Issue 5
  • DOI: 10.1007/JHEP05(2015)078

Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
journal, September 2014


Searches for electroweak neutralino and chargino production in channels with Higgs, Z , and W bosons in p p collisions at 8 TeV
journal, November 2014


Supergauge transformations in four dimensions
journal, February 1974


Dynamical breaking of supersymmetry
journal, October 1981


Softly broken supersymmetry and SU(5)
journal, December 1981


Naturalnes in supersymmetric GUTS
journal, June 1981

  • Sakai, N.
  • Zeitschrift für Physik C Particles and Fields, Vol. 11, Issue 2
  • DOI: 10.1007/BF01573998

Gauge hierarchy in a supersymmetric model
journal, February 1982


Symmetry breaking and scalar bosons
journal, June 1976


Gauge-symmetry hierarchies
journal, September 1976


Dynamics of spontaneous symmetry breaking in the Weinberg-Salam theory
journal, November 1979


A solution to the supersymmetric fine-tuning problem within the MSSM
journal, December 2005


Supersymmetry, naturalness, and signatures at the CERN LHC
journal, May 2006


Natural SUSY endures
journal, September 2012

  • Papucci, Michele; Ruderman, Joshua T.; Weiler, Andreas
  • Journal of High Energy Physics, Vol. 2012, Issue 9
  • DOI: 10.1007/JHEP09(2012)035

The fine-tuning price of the early LHC
journal, April 2011


Search for top-squark pair production in the single-lepton final state in pp collisions at $\sqrt{s}=8\ \mathrm{TeV}$
journal, December 2013


Searches for third-generation squark production in fully hadronic final states in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
journal, June 2015

  • Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)116

ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
journal, October 2015


Radiative Natural Supersymmetry with a 125 GeV Higgs Boson
journal, October 2012


Radiative natural supersymmetry: Reconciling electroweak fine-tuning and the Higgs boson mass
journal, June 2013


How conventional measures overestimate electroweak fine-tuning in supersymmetric theory
journal, November 2013


Supergravity gauge theories strike back: there is no crisis for SUSY but a new collider may be required for discovery
journal, April 2015


Supersymmetry, naturalness and light higgsinos
journal, May 2014


Supersymmetry: aspirations and prospects
journal, September 2015


Naturalness, weak scale supersymmetry, and the prospect for the observation of supersymmetry at the Fermilab Tevatron and at the CERN LHC
journal, September 1998


Generalized Supersoft Supersymmetry Breaking and a Solution to the μ Problem
journal, May 2015


Nonstandard supersymmetry breaking and Dirac gaugino masses without supersoftness
journal, August 2015


Natural supersymmetry without light Higgsinos
journal, April 2015


Radiatively-driven natural supersymmetry at the LHC
journal, December 2013

  • Baer, Howard; Barger, Vernon; Huang, Peisi
  • Journal of High Energy Physics, Vol. 2013, Issue 12
  • DOI: 10.1007/JHEP12(2013)013

Erratum to: Radiatively-driven natural supersymmetry at the LHC
journal, June 2015

  • Baer, Howard; Barger, Vernon; Huang, Peisi
  • Journal of High Energy Physics, Vol. 2015, Issue 6
  • DOI: 10.1007/JHEP06(2015)053

Physics at a Higgsino factory
journal, June 2014

  • Baer, Howard; Barger, Vernon; Mickelson, Dan
  • Journal of High Energy Physics, Vol. 2014, Issue 6
  • DOI: 10.1007/JHEP06(2014)172

Natural SUSY with a bino- or wino-like LSP
journal, April 2015


Monojets and monophotons from light Higgsino pair production at LHC14
journal, March 2014


Probing light higgsinos in natural SUSY from monojet signals at the LHC
journal, February 2014

  • Han, Chengcheng; Kobakhidze, Archil; Liu, Ning
  • Journal of High Energy Physics, Vol. 2014, Issue 2
  • DOI: 10.1007/JHEP02(2014)049

Compressed electroweakino spectra at the LHC
journal, March 2014


Uncovering Natural Supersymmetry via the interplay between the LHC and direct Dark Matter detection
journal, July 2015

  • Barducci, Daniele; Belyaev, Alexander; Bharucha, Aoife K. M.
  • Journal of High Energy Physics, Vol. 2015, Issue 7
  • DOI: 10.1007/JHEP07(2015)066

Degenerate gaugino mass region and mono-boson collider signatures
journal, September 2014


Nearly degenerate gauginos and dark matter at the LHC
journal, June 2010


Hunting quasidegenerate Higgsinos
journal, April 2014


Monojet plus soft dilepton signal from light higgsino pair production at LHC14
journal, December 2014


Evidence for Electroweak Production of W ± W ± j j in p p Collisions at s = 8 TeV with the ATLAS Detector
journal, October 2014


Study of Vector Boson Scattering and Search for New Physics in Events with Two Same-Sign Leptons and Two Jets
journal, February 2015


Weak boson fusion production of supersymmetric particles at the CERN LHC
journal, March 2006


Probing Dark Matter at the LHC Using Vector Boson Fusion Processes
journal, August 2013


Vector boson fusion processes as a probe of supersymmetric electroweak sectors at the LHC
journal, February 2013


Probing compressed top squark scenarios at the LHC at 14 TeV
journal, November 2014


Probing compressed sleptons at the LHC using vector boson fusion processes
journal, March 2015


Implications of non-universality of soft terms in supersyrnmetric grand unified theories
journal, February 1995


Neutralino dark matter in supersymmetric models with non-universal scalar mass terms
journal, June 1996


Nonuniversal soft supersymmetry breaking and dark matter
journal, September 1997


The MSSM parameter space with non-universal Higgs masses
journal, July 2002


Exploration of the MSSM with non-universal Higgs masses
journal, March 2003


Direct, indirect and collider detection of neutralino dark matter in SUSY models with non-universal Higgs masses
journal, July 2005


MadGraph 5: going beyond
journal, June 2011

  • Alwall, Johan; Herquet, Michel; Maltoni, Fabio
  • Journal of High Energy Physics, Vol. 2011, Issue 6
  • DOI: 10.1007/JHEP06(2011)128

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

PYTHIA 6.4 physics and manual
journal, May 2006


New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002


Neutralinos in vector boson fusion at high energy colliders
journal, June 2015