Stop coannihilation in the CMSSM and SubGUT models

Ellis, John; Evans, Jason L.; Luo, Feng; Olive, Keith A.; Zheng, Jiaming

doi:10.1140/epjc/s10052-018-5831-z

Title: Stop coannihilation in the CMSSM and SubGUT models

Abstract

Stop coannihilation may bring the relic density of heavy supersymmetric dark matter particles into the range allowed by cosmology. The efficiency of this pro-cess is enhanced by stop-antistop annihilations into the lon-gitudinal (Goldstone) modes of the W and Z bosons, as well as by Sommerfeld enhancement of stop annihilations and the effects of bound states. Since the couplings of the stops to the Goldstone modes are proportional to the trilin-ear soft supersymmetry-breaking A-terms, these annihila-tions are enhanced when the A-terms are large. Yet, the Higgs mass may be reduced below the measured value if the A-terms are too large. Unfortunately, the interpretation of this constraint on the stop coannihilation strip is clouded by differences between the available Higgs mass calculators. For our study, we use as our default calcula-tor FeynHiggs 2.13.0, the most recent publicly avail-able version of this code. Exploring the CMSSM parameter space, we find that along the stop coannihilation strip the masses of the stops are severely split by the large A-terms. This suppresses the Higgs mass drastically for μ and A₀ > 0, whilst the extent of the stop coannihilation strip is limited for A₀ < 0 and either sign of μ. However, in sub-GUT models,more »« less

Authors:

Ellis, John ^[1]; Evans, Jason L. ^[2]; Luo, Feng ^[3]; Olive, Keith A. ^[4]; Zheng, Jiaming ^[5]

King's College London (United Kingdom); National Inst. of Chemical Physics and Biophysics, Tallinn (Estonia); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Korea Inst. for Advanced Study (KIAS), Seoul (South Korea)
Univ. of Tokyo, Kashiwa (Japan)
Univ. of Minnesota, Minneapolis, MN (United States)
Univ. of Tokyo, Tokyo (Japan)

Publication Date:: Mon May 28 00:00:00 EDT 2018

Research Org.:: Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1510034

Grant/Contract Number:: SC0011842; JP26104009

Resource Type:: Accepted Manuscript

Journal Name:: European Physical Journal. C, Particles and Fields

Additional Journal Information:: Journal Volume: 78; Journal Issue: 5; Journal ID: ISSN 1434-6044

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Ellis, John, Evans, Jason L., Luo, Feng, Olive, Keith A., and Zheng, Jiaming. Stop coannihilation in the CMSSM and SubGUT models.  United States: N. p., 2018. 
Web.  doi:10.1140/epjc/s10052-018-5831-z.

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                    Ellis, John, Evans, Jason L., Luo, Feng, Olive, Keith A., & Zheng, Jiaming. Stop coannihilation in the CMSSM and SubGUT models.  United States.  https://doi.org/10.1140/epjc/s10052-018-5831-z

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                    Ellis, John, Evans, Jason L., Luo, Feng, Olive, Keith A., and Zheng, Jiaming. Mon .  
"Stop coannihilation in the CMSSM and SubGUT models".  United States.  https://doi.org/10.1140/epjc/s10052-018-5831-z.  https://www.osti.gov/servlets/purl/1510034.

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@article{osti_1510034,

  title        = {Stop coannihilation in the CMSSM and SubGUT models},

  author       = {Ellis, John and Evans, Jason L. and Luo, Feng and Olive, Keith A. and Zheng, Jiaming},

  abstractNote = {Stop coannihilation may bring the relic density of heavy supersymmetric dark matter particles into the range allowed by cosmology. The efficiency of this pro-cess is enhanced by stop-antistop annihilations into the lon-gitudinal (Goldstone) modes of the W and Z bosons, as well as by Sommerfeld enhancement of stop annihilations and the effects of bound states. Since the couplings of the stops to the Goldstone modes are proportional to the trilin-ear soft supersymmetry-breaking A-terms, these annihila-tions are enhanced when the A-terms are large. Yet, the Higgs mass may be reduced below the measured value if the A-terms are too large. Unfortunately, the interpretation of this constraint on the stop coannihilation strip is clouded by differences between the available Higgs mass calculators. For our study, we use as our default calcula-tor FeynHiggs 2.13.0, the most recent publicly avail-able version of this code. Exploring the CMSSM parameter space, we find that along the stop coannihilation strip the masses of the stops are severely split by the large A-terms. This suppresses the Higgs mass drastically for μ and A0 > 0, whilst the extent of the stop coannihilation strip is limited for A0 < 0 and either sign of μ. However, in sub-GUT models, reduced renormalization-group running mitigates the effect of the large A-terms, allowing larger LSP masses to be consistent with the Higgs mass calculation. We give examples where the dark matter particle mass may reach ≳ 8 TeV.},

  doi          = {10.1140/epjc/s10052-018-5831-z},

  journal      = {European Physical Journal. C, Particles and Fields},

  number       = 5,

  volume       = 78,

  place        = {United States},

  year         = {Mon May 28 00:00:00 EDT 2018},

  month        = {Mon May 28 00:00:00 EDT 2018}

}

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The CMSSM and NUHM1 after LHC Run 1

Journal Article Buchmueller, O. ; De Roeck, A. ; Cavanaugh, R. ; ... - European Physical Journal. C, Particles and Fields

We analyze the impact of data from the full Run 1 of the LHC at 7 and 8 TeV on the CMSSM with μ > 0 and < 0 and the NUHM1 with μ > 0, incorporating the constraints imposed by other experiments such as precision electroweak measurements, flavour measurements, the cosmological density of cold dark matter and the direct search for the scattering of dark matter particles in the LUX experiment. We use the following results from the LHC experiments: ATLAS searches for events with E/_T accompanied by jets with the full 7 and 8 TeV data, the ATLASmore »« less
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https://doi.org/10.1140/epjc/s10052-014-2922-3

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Likelihood analysis of the sub-GUT MSSM in light of LHC 13-TeV data

Journal Article Costa, J. C. ; Bagnaschi, E. ; Sakurai, K. ; ... - European Physical Journal. C, Particles and Fields

We describe a likelihood analysis using MasterCode of variants of the MSSM in which the soft supersymmetry-breaking parameters are assumed to have universal values at some scale M_in below the supersymmet-ric grand unification scale M_GUT, as can occur in mirage mediation and other models. In addition to M_in, such ‘sub-GUT’ models have the 4 parameters of the CMSSM, namely a common gaugino mass m_1/2, a common soft supersymmetry-breaking scalar mass m₀, a common trilinear mixing parameter A and the ratio of MSSM Higgs vevs tan β, assuming that the Higgs mixing parameter μ> 0. We take into account constraints on strongly- and electroweakly-interacting sparticles from ~ 36/fb of LHC data at 13 TeV and the LUX and 2017 PICO, XENON1T and PandaX-II searches for dark matter scattering, in addition to the previous LHC and dark matter constraints as well as full sets of flavour and electroweak constraints. We find a preference for Min ~ 10⁵ to 10⁹ GeV, with M_in ~ M_GUT disfavoured by Δχ² ~ 3 due to the BR(B_s,d → μ⁺μ^-) constraint. The lower limits on strongly-interacting sparticles are largely determined by LHC searches, and similar to those in the CMSSM. We find a preference for the LSP to be a Bino or Higgsino with mmore »« less
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The CMSSM survives Planck, the LHC, LUX-ZEPLIN, Fermi-LAT, H.E.S.S. and IceCube

Journal Article Ellis, John ; Olive, Keith A. ; Spanos, Vassilis C. ; ... - European Physical Journal. C, Particles and Fields (Online)

We revisit the viability of the CMSSM, searching for regions of parameter space that yield a neutralino dark matter density compatible with Planck measurements, as well as LHC constraints including sparticle searches and the mass of the Higgs boson, recent direct limits on spin-independent and -dependent dark matter scattering from the LUX-ZEPLIN (LZ) experiment, the indirect constraints from Fermi-LAT and H.E.S.S. on dark matter annihilations to photons in dwarf spheroidal galaxies and the Galactic Centre, and the IceCube limits on muons from annihilations to neutrinos in the Sun. For representative values of tan β and A₀ we map in detailmore »« less
https://doi.org/10.1140/epjc/s10052-023-11405-1

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Title: Stop coannihilation in the CMSSM and SubGUT models

Abstract

Citation Formats

Upper Bound of the Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model journal, January 1991

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

Supersymmetric relics from the big bang journal, June 1984

Review of Particle Physics journal, October 2016

Closing in on the tip of the CMSSM stau coannihilation strip journal, September 2014

Weak symmetry breaking by radiative corrections in broken supergravity journal, June 1983

Low mass gluino within the sparticle landscape, implications for dark matter, and early discovery prospects at LHC-7 journal, February 2011

Locally supersymmetric SU(5) grand unification journal, December 1982

SU(2)L × U(1) symmetry breaking as a radiative effect of supersymmetry breaking in GUTs journal, April 1982

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

FeynHiggs: A program for the calculation of MSSM Higgs-boson observables – Version 2.6.5 journal, August 2009

Cosmology and astrophysics of minimal dark matter journal, December 2007

On the Higgs mass in the CMSSM journal, February 2006

Coannihilation scenarios and particle spectroscopy in S U ( 4 ) c × S U ( 2 ) L × S U ( 2 ) R journal, November 2009

Neutralino-stop coannihilation into electroweak gauge and Higgs bosons at one loop journal, March 2013

Calculations of neutralino-stop coannihilation in the CMSSM journal, January 2003

New cosmological and experimental constraints on the CMSSM journal, August 2001

Gluino NLSP, dark matter via gluino coannihilation, and LHC signatures journal, July 2009

Precision LEP data, supersymmetric GUTs and string unification journal, October 1990

Probing High-Scale and Split Supersymmetry with Higgs mass measurements journal, May 2012

One-loop corrections to the supersymmetric Higgs boson couplings and LEP phenomenology journal, July 1992

The extent of the stop coannihilation strip journal, July 2014

A closer look at gaugino masses in pure gravity mediation model/minimal split SUSY model journal, December 2013

Planck 2015 results : XIII. Cosmological parameters journal, September 2016

Soft supersymmetry breaking in KKLT flux compactification journal, July 2005

SU(5) grand unification in pure gravity mediation journal, March 2015

Grand unification in simple supergravity journal, January 1983

Derivation of gauge invariance from high-energy unitarity bounds on the S matrix journal, August 1974

Effects of QCD bound states on dark matter relic abundance journal, February 2017

On radiative corrections to supersymmetric Higgs boson masses and their implications for LEP searches journal, June 1991

FeynHiggs: a program for the calculation of the masses of the neutral -even Higgs bosons in the MSSM journal, January 2000

Yukawa unification and neutralino dark matter in S U ( 4 ) c × S U ( 2 ) L × S U ( 2 ) R journal, June 2009

Mass hierarchies in supersymmetric theories journal, October 1981

Scenarios for gluino coannihilation journal, February 2016

Probing the desert using gauge coupling unification journal, May 1991

Aspects of Grand Unified Models with Softly Broken Supersymmetry journal, September 1982

Sparticle discovery potentials in the CMSSM and GUT-less supersymmetry-breaking scenarios journal, August 2008

Constraints on the minimal supergravity model and prospects for SUSY particle production at future linear e + e − colliders journal, August 2001

WMAPing out supersymmetric dark matter and phenomenology journal, August 2003

Accurate relic densities with neutralino, chargino and sfermion coannihilations in mSUGRA journal, April 2003

Implications of improved Higgs mass calculations for supersymmetric models journal, March 2014

Explosive Dark Matter Annihilation journal, January 2004

Supersymmetric dark matter in the light of LEP 1.5 journal, November 1996

Revisiting the Higgs mass and dark matter in the CMSSM journal, May 2012

The TeV physics of strongly interacting W's and Z's journal, January 1985

Exact Cross Sections for the Neutralino-Slepton Coannihilation journal, July 2002

Yukawa unified supersymmetric SO ( 10 ) model: Cosmology, rare decays, and collider searches journal, December 2000

Über die Beugung und Bremsung der Elektronen journal, January 1931

Comparison of grand unified theories with electroweak and strong coupling constants measured at LEP journal, May 1991

Running Coupling Constants and Grand Unification Models journal, June 1991

Investigating the near-criticality of the Higgs boson journal, December 2013

New limits on parameters of the supersymmetric standard model from cosmology journal, October 1989

Coannihilation effects in supergravity and D-brane models journal, July 2001

Neutralino relic density in minimal supergravity with co-annihilations journal, March 2002

Universality in pure gravity mediation with vector multiplets journal, December 2014

Prospects for mirage mediation journal, September 2006

Reappraisal of dark matter co-annihilating with a top or bottom partner journal, July 2017

Three exceptions in the calculation of relic abundances journal, May 1991

Relic density of neutralino dark matter in supergravity models journal, March 1998

Supersymmetric dark matter and Yukawa unification journal, August 2002

Dark Matter Detection in the Light of Recent Experimental Results journal, July 2004

A light Higgs boson would invite supersymmetry journal, May 2001

Non-perturbative effect on thermal relic abundance of dark matter journal, March 2007

WMAP constraints, supersymmetric dark matter, and implications for the direct detection of supersymmetry journal, August 2003

Charged and neutral supersymmetric Higgs boson masses. Complete one-loop analysis journal, January 1992

End of the CMSSM coannihilation strip is nigh journal, February 2013

Phenomenology of GUT-less supersymmetry breaking journal, June 2007

Radiative corrections to the masses of supersymmetric Higgs bosons journal, March 1991

Hidden charged dark matter journal, July 2009

Higgs mass determination in supersymmetry journal, July 2015

Higgs mass and unnatural supersymmetry journal, September 2014

SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects journal, February 2015

What if supersymmetry breaking appears below the GUT scale? journal, November 2006

Coannihilation effects and relic abundance of higgsino-dominant LSPs journal, January 1993

Neutralino-stau coannihilation and the cosmological upper limit on the mass of the lightest supersymmetric particle journal, December 1998

Aspects of Grand Unified Models with Softly Broken Supersymmetry journal, July 1983

Radiative corrections to the Higgs masses in the minimal supersymmetric standard model journal, July 1991

Upper Bound of the Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model
journal, January 1991

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

Supersymmetric relics from the big bang
journal, June 1984

Review of Particle Physics
journal, October 2016

Closing in on the tip of the CMSSM stau coannihilation strip
journal, September 2014

Weak symmetry breaking by radiative corrections in broken supergravity
journal, June 1983

Low mass gluino within the sparticle landscape, implications for dark matter, and early discovery prospects at LHC-7
journal, February 2011

Locally supersymmetric SU(5) grand unification
journal, December 1982

SU(2)L × U(1) symmetry breaking as a radiative effect of supersymmetry breaking in GUTs
journal, April 1982

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

FeynHiggs: A program for the calculation of MSSM Higgs-boson observables – Version 2.6.5
journal, August 2009

Cosmology and astrophysics of minimal dark matter
journal, December 2007

On the Higgs mass in the CMSSM
journal, February 2006

Coannihilation scenarios and particle spectroscopy in $S U (4)_{c} \times S U (2)_{L} \times S U (2)_{R}$
journal, November 2009

Neutralino-stop coannihilation into electroweak gauge and Higgs bosons at one loop
journal, March 2013

Calculations of neutralino-stop coannihilation in the CMSSM
journal, January 2003

New cosmological and experimental constraints on the CMSSM
journal, August 2001

Gluino NLSP, dark matter via gluino coannihilation, and LHC signatures
journal, July 2009

Precision LEP data, supersymmetric GUTs and string unification
journal, October 1990

Probing High-Scale and Split Supersymmetry with Higgs mass measurements
journal, May 2012

One-loop corrections to the supersymmetric Higgs boson couplings and LEP phenomenology
journal, July 1992

The extent of the stop coannihilation strip
journal, July 2014

A closer look at gaugino masses in pure gravity mediation model/minimal split SUSY model
journal, December 2013

Planck 2015 results : XIII. Cosmological parameters
journal, September 2016

Soft supersymmetry breaking in KKLT flux compactification
journal, July 2005

SU(5) grand unification in pure gravity mediation
journal, March 2015

Grand unification in simple supergravity
journal, January 1983

Derivation of gauge invariance from high-energy unitarity bounds on the $S$ matrix
journal, August 1974

Effects of QCD bound states on dark matter relic abundance
journal, February 2017

On radiative corrections to supersymmetric Higgs boson masses and their implications for LEP searches
journal, June 1991

FeynHiggs: a program for the calculation of the masses of the neutral -even Higgs bosons in the MSSM
journal, January 2000

Yukawa unification and neutralino dark matter in $S U (4)_{c} \times S U (2)_{L} \times S U (2)_{R}$
journal, June 2009

Mass hierarchies in supersymmetric theories
journal, October 1981

Scenarios for gluino coannihilation
journal, February 2016

Probing the desert using gauge coupling unification
journal, May 1991

Aspects of Grand Unified Models with Softly Broken Supersymmetry
journal, September 1982

Sparticle discovery potentials in the CMSSM and GUT-less supersymmetry-breaking scenarios
journal, August 2008

Constraints on the minimal supergravity model and prospects for SUSY particle production at future linear e ⁺ e ⁻ colliders
journal, August 2001

WMAPing out supersymmetric dark matter and phenomenology
journal, August 2003

Accurate relic densities with neutralino, chargino and sfermion coannihilations in mSUGRA
journal, April 2003

Implications of improved Higgs mass calculations for supersymmetric models
journal, March 2014

Explosive Dark Matter Annihilation
journal, January 2004

Supersymmetric dark matter in the light of LEP 1.5
journal, November 1996

Revisiting the Higgs mass and dark matter in the CMSSM
journal, May 2012

The TeV physics of strongly interacting W's and Z's
journal, January 1985

Exact Cross Sections for the Neutralino-Slepton Coannihilation
journal, July 2002

Yukawa unified supersymmetric $SO (10)$ model: Cosmology, rare decays, and collider searches
journal, December 2000

Über die Beugung und Bremsung der Elektronen
journal, January 1931

Comparison of grand unified theories with electroweak and strong coupling constants measured at LEP
journal, May 1991

Running Coupling Constants and Grand Unification Models
journal, June 1991

Investigating the near-criticality of the Higgs boson
journal, December 2013

New limits on parameters of the supersymmetric standard model from cosmology
journal, October 1989

Coannihilation effects in supergravity and D-brane models
journal, July 2001

Neutralino relic density in minimal supergravity with co-annihilations
journal, March 2002

Universality in pure gravity mediation with vector multiplets
journal, December 2014

Prospects for mirage mediation
journal, September 2006

Reappraisal of dark matter co-annihilating with a top or bottom partner
journal, July 2017

Three exceptions in the calculation of relic abundances
journal, May 1991

Relic density of neutralino dark matter in supergravity models
journal, March 1998

Supersymmetric dark matter and Yukawa unification
journal, August 2002

Dark Matter Detection in the Light of Recent Experimental Results
journal, July 2004

A light Higgs boson would invite supersymmetry
journal, May 2001

Non-perturbative effect on thermal relic abundance of dark matter
journal, March 2007

WMAP constraints, supersymmetric dark matter, and implications for the direct detection of supersymmetry
journal, August 2003

Charged and neutral supersymmetric Higgs boson masses. Complete one-loop analysis
journal, January 1992

End of the CMSSM coannihilation strip is nigh
journal, February 2013

Phenomenology of GUT-less supersymmetry breaking
journal, June 2007

Radiative corrections to the masses of supersymmetric Higgs bosons
journal, March 1991

Hidden charged dark matter
journal, July 2009

Higgs mass determination in supersymmetry
journal, July 2015

Higgs mass and unnatural supersymmetry
journal, September 2014

SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects
journal, February 2015

What if supersymmetry breaking appears below the GUT scale?
journal, November 2006

Coannihilation effects and relic abundance of higgsino-dominant LSPs
journal, January 1993

Neutralino-stau coannihilation and the cosmological upper limit on the mass of the lightest supersymmetric particle
journal, December 1998

Aspects of Grand Unified Models with Softly Broken Supersymmetry
journal, July 1983

Radiative corrections to the Higgs masses in the minimal supersymmetric standard model
journal, July 1991

Charginos and neutralinos in the light of radiative corrections: Sealing the fate of Higgsino dark matter
journal, September 1998

Constraint on the Photino Mass from Cosmology
journal, May 1983

Not even decoupling can save the minimal supersymmetric SU(5) model
journal, February 2002