Cornering Higgsinos Using Soft Displaced Tracks

Fukuda, Hajime; Nagata, Natsumi; Oide, Hideyuki; Otono, Hidetoshi; Shirai, Satoshi

doi:10.1103/physrevlett.124.101801

Title: Cornering Higgsinos Using Soft Displaced Tracks

Abstract

Higgsino has been intensively searched for in the LHC experiments in recent years. Currently, there is an uncharted region beyond the LEP Higgsino mass limit where the mass splitting between the neutral and charged Higgsinos is around 0.3–1 GeV, which is unexplored by either the soft di-lepton or disappearing track searches. This region is, however, of great importance from a phenomenological point of view, as many supersymmetric models predict such a mass spectrum. In this Letter, we propose a possibility of filling this gap by using a soft microdisplaced track in addition to the monojet event selection, which allows us to discriminate a signature of the charged Higgsino decay from the standard model background. It is found that this new strategy is potentially sensitive to a Higgsino mass of ≲ 180(250) GeV at the LHC Run2 (HL-LHC) for a charged-neutral mass splitting of ≃ 0.5 GeV.

Authors:

; Nagata, Natsumi;

;

; Shirai, Satoshi

Publication Date:: Wed Mar 11 00:00:00 EDT 2020

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); Japan Society for the Promotion of Science (JSPS)

OSTI Identifier:: 1604225

Alternate Identifier(s):: OSTI ID: 1737602

Grant/Contract Number:: AC02-05CH11231; 17H02878; 17K14270; 18H05542; 18K13535; 19H04609; 19K23439

Resource Type:: Published Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters Journal Volume: 124 Journal Issue: 10; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; particle dark matter; supersymmetric models; hadron colliders

Citation Formats


                    Fukuda, Hajime, Nagata, Natsumi, Oide, Hideyuki, Otono, Hidetoshi, and Shirai, Satoshi. Cornering Higgsinos Using Soft Displaced Tracks.  United States: N. p., 2020. 
Web.  doi:10.1103/physrevlett.124.101801.

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                    Fukuda, Hajime, Nagata, Natsumi, Oide, Hideyuki, Otono, Hidetoshi, & Shirai, Satoshi. Cornering Higgsinos Using Soft Displaced Tracks.  United States.  https://doi.org/10.1103/physrevlett.124.101801

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                    Fukuda, Hajime, Nagata, Natsumi, Oide, Hideyuki, Otono, Hidetoshi, and Shirai, Satoshi. Wed .  
"Cornering Higgsinos Using Soft Displaced Tracks".  United States.  https://doi.org/10.1103/physrevlett.124.101801.

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@article{osti_1604225,

  title        = {Cornering Higgsinos Using Soft Displaced Tracks},

  author       = {Fukuda, Hajime and Nagata, Natsumi and Oide, Hideyuki and Otono, Hidetoshi and Shirai, Satoshi},

  abstractNote = {Higgsino has been intensively searched for in the LHC experiments in recent years. Currently, there is an uncharted region beyond the LEP Higgsino mass limit where the mass splitting between the neutral and charged Higgsinos is around 0.3–1 GeV, which is unexplored by either the soft di-lepton or disappearing track searches. This region is, however, of great importance from a phenomenological point of view, as many supersymmetric models predict such a mass spectrum. In this Letter, we propose a possibility of filling this gap by using a soft microdisplaced track in addition to the monojet event selection, which allows us to discriminate a signature of the charged Higgsino decay from the standard model background. It is found that this new strategy is potentially sensitive to a Higgsino mass of ≲ 180(250) GeV at the LHC Run2 (HL-LHC) for a charged-neutral mass splitting of ≃ 0.5 GeV.},

  doi          = {10.1103/physrevlett.124.101801},

  journal      = {Physical Review Letters},

  number       = 10,

  volume       = 124,

  place        = {United States},

  year         = {Wed Mar 11 00:00:00 EDT 2020},

  month        = {Wed Mar 11 00:00:00 EDT 2020}

}

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Title: Cornering Higgsinos Using Soft Displaced Tracks

Abstract

Citation Formats

Particle Dark Matter constraints: the effect of Galactic uncertainties journal, February 2017

Higgsino dark matter or not: Role of disappearing track searches at the LHC and future colliders journal, June 2018

Catching sparks from well-forged neutralinos journal, November 2014

A critical reassessment of particle Dark Matter limits from dwarf satellites journal, July 2016

Neutralino dark matter at 14 TeV and 100 TeV journal, August 2014

Possible signals of wino LSP at the Large Hadron Collider journal, January 2007

Minimal dark matter: model and results journal, October 2009

Electric dipole moment in the split supersymmetry models journal, April 2005

Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV journal, August 2018

Electroweakly interacting Dirac dark matter journal, March 2015

Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector journal, January 2018

Searching for Invisible and Almost Invisible Particles at e + e − Colliders journal, March 1996

Nonstandard string-SUSY scenario and its phenomenological implications journal, January 1997

Erratum: Particle Dark Matter constraints: the effect of Galactic uncertainties journal, June 2018

Higgsino dark matter in high-scale supersymmetry journal, January 2015

Foreground effect on the J-factor estimation of classical dwarf spheroidal galaxies journal, March 2017

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

Cosmology and astrophysics of minimal dark matter journal, December 2007

Mass measurement of the decaying Bino at the LHC journal, March 2009

Cracking down on fake photons: Cases of diphoton resonance imposters journal, March 2017

Precision predictions for electroweak superpartner production at hadron colliders with Resummino journal, July 2013

Closing the window for compressed dark sectors with disappearing charged tracks journal, June 2017

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

Phenomenology of Massive Vectorlike Doublet Leptons journal, July 1998

Electric dipole moments in split supersymmetry journal, March 2006

Study of the material of the ATLAS inner detector for Run 2 of the LHC journal, December 2017

Dark matter constraints from dwarf galaxies: a data-driven analysis journal, October 2018

Electric dipole moment of the electron and of the neutron journal, July 1990

Calculations of relic densities in the early universe journal, December 1988

Spread Supersymmetry journal, January 2012

Erratum to: Closing the window for compressed dark sectors with disappearing charged tracks journal, October 2017

Hunting quasidegenerate Higgsinos journal, April 2014

Test of anomaly mediation at the LHC journal, June 2008

Dark Matter Search Results from a One Ton-Year Exposure of XENON1T journal, September 2018

Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV journal, October 2012

Cosmological heavy-neutrino problem journal, December 1985

Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV journal, March 2018

DELPHES 3: a modular framework for fast simulation of a generic collider experiment journal, February 2014

LHC searches for non-chiral weakly charged multiplets journal, May 2011

Foreground effect on the J-factor estimation of ultrafaint dwarf spheroidal galaxies journal, May 2018

Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider journal, June 2019

Cornering electroweakinos at the LHC journal, October 2013

Signals for CP violation in split supersymmetry journal, May 2005

Search for long-lived charginos based on a disappearing-track signature in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector journal, June 2018

An introduction to PYTHIA 8.2 journal, June 2015

Search for electroweak production of supersymmetric states in scenarios with compressed mass spectra at s = 13 TeV with the ATLAS detector journal, March 2018

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Presentation of search results: the CL s technique journal, September 2002

The Discreet Charm of Higgsino Dark Matter: A Pocket Review journal, July 2018

Testing the anomaly mediation at the LHC journal, September 2007

Erratum: Nonstandard string-SUSY scenario and its phenomenological implications [Phys. Rev. D 55 , 330 (1997)] journal, June 1999

Tackling light higgsinos at the ILC journal, December 2013

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

Discovering Supersymmetry at the Tevatron in W -ino Lightest Supersymmetric Particle Scenarios journal, August 1999

Minimal dark matter journal, October 2006

New physics opportunities for long-lived particles at electron-proton colliders journal, July 2018

Particle Dark Matter constraints: the effect of Galactic uncertainties
journal, February 2017

Higgsino dark matter or not: Role of disappearing track searches at the LHC and future colliders
journal, June 2018

Catching sparks from well-forged neutralinos
journal, November 2014

A critical reassessment of particle Dark Matter limits from dwarf satellites
journal, July 2016

Neutralino dark matter at 14 TeV and 100 TeV
journal, August 2014

Possible signals of wino LSP at the Large Hadron Collider
journal, January 2007

Minimal dark matter: model and results
journal, October 2009

Electric dipole moment in the split supersymmetry models
journal, April 2005

Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
journal, August 2018

Electroweakly interacting Dirac dark matter
journal, March 2015

Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
journal, January 2018

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journal, March 1996

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journal, January 1997

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journal, June 2018

Higgsino dark matter in high-scale supersymmetry
journal, January 2015

Foreground effect on the J-factor estimation of classical dwarf spheroidal galaxies
journal, March 2017

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

Cosmology and astrophysics of minimal dark matter
journal, December 2007

Mass measurement of the decaying Bino at the LHC
journal, March 2009

Cracking down on fake photons: Cases of diphoton resonance imposters
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Precision predictions for electroweak superpartner production at hadron colliders with Resummino
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Closing the window for compressed dark sectors with disappearing charged tracks
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Naturalness, weak scale supersymmetry, and the prospect for the observation of supersymmetry at the Fermilab Tevatron and at the CERN LHC
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Phenomenology of Massive Vectorlike Doublet Leptons
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Electric dipole moments in split supersymmetry
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Study of the material of the ATLAS inner detector for Run 2 of the LHC
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Dark matter constraints from dwarf galaxies: a data-driven analysis
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Electric dipole moment of the electron and of the neutron
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Calculations of relic densities in the early universe
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Spread Supersymmetry
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Erratum to: Closing the window for compressed dark sectors with disappearing charged tracks
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Hunting quasidegenerate Higgsinos
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Test of anomaly mediation at the LHC
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Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
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Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV
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Cosmological heavy-neutrino problem
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Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
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DELPHES 3: a modular framework for fast simulation of a generic collider experiment
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LHC searches for non-chiral weakly charged multiplets
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Foreground effect on the J-factor estimation of ultrafaint dwarf spheroidal galaxies
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Discovery reach for wino and higgsino dark matter with a disappearing track signature at a 100 TeV pp collider
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Cornering electroweakinos at the LHC
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Signals for CP violation in split supersymmetry
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Search for long-lived charginos based on a disappearing-track signature in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector
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An introduction to PYTHIA 8.2
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Search for electroweak production of supersymmetric states in scenarios with compressed mass spectra at $\sqrt{s} = 13 TeV$ with the ATLAS detector
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Charged-particle distributions in $\sqrt{s} = 13 TeV$ pp interactions measured with the ATLAS detector at the LHC
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Presentation of search results: the CL _s technique
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The Discreet Charm of Higgsino Dark Matter: A Pocket Review
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Testing the anomaly mediation at the LHC
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Erratum: Nonstandard string-SUSY scenario and its phenomenological implications [Phys. Rev. D 55 , 330 (1997)]
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Tackling light higgsinos at the ILC
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Probing light higgsinos in natural SUSY from monojet signals at the LHC
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Discovering Supersymmetry at the Tevatron in $W$ -ino Lightest Supersymmetric Particle Scenarios
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Minimal dark matter
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New physics opportunities for long-lived particles at electron-proton colliders
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