Little hierarchy in the minimally specified MSSM

Dermíšek, Radovan; McGinnis, Navin

doi:10.1142/S0217751X18501452

Title: Little hierarchy in the minimally specified MSSM

Abstract

Here, we study constrained versions of the minimal supersymmetric model and investigate the hierarchy between the electroweak scale and the scale of superpartners that can be achieved without relying on specifying model parameters by more than one digit (or with better than 10% precision). This approach automatically avoids scenarios in which a large hierarchy is obtained by special choices of parameters and yet keeps scenarios that would otherwise be disfavored by various sensitivity measures. We consider models with universal gaugino and scalar masses, models with nonuniversal Higgs masses or nonuniversal gaugino masses and focus on scenarios in which all the model parameters are either of the same order or zero at the grand unification scale. Lastly, we find that the maximal hierarchy between the electroweak scale and stop masses, requiring that model parameters are not specified beyond one digit, ranges from a factor of ~10–30 for the CMSSM up to ~300 for models with nonuniversal Higgs or gaugino masses.

Authors:

Dermíšek, Radovan ^[1]; McGinnis, Navin ^[1]

Indiana Univ., Bloomington, IN (United States)

Publication Date:: 2018-09-05

Research Org.:: Indiana Univ., Bloomington, IN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

OSTI Identifier:: 1597038

Grant/Contract Number:: SC0010120

Resource Type:: Accepted Manuscript

Journal Name:: International Journal of Modern Physics A

Additional Journal Information:: Journal Volume: 33; Journal Issue: 25; Journal ID: ISSN 0217-751X

Publisher:: World Scientific

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Supersymmetry phenomenology; electroweak symmetry breaking

Citation Formats


                    Dermíšek, Radovan, and McGinnis, Navin. Little hierarchy in the minimally specified MSSM.  United States: N. p., 2018. 
        Web.  doi:10.1142/S0217751X18501452.

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                    Dermíšek, Radovan, & McGinnis, Navin. Little hierarchy in the minimally specified MSSM.  United States.  doi:https://doi.org/10.1142/S0217751X18501452

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                    Dermíšek, Radovan, and McGinnis, Navin. Wed .  
        "Little hierarchy in the minimally specified MSSM".  United States.  doi:https://doi.org/10.1142/S0217751X18501452.  https://www.osti.gov/servlets/purl/1597038.

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@article{osti_1597038,

  title        = {Little hierarchy in the minimally specified MSSM},

  author       = {Dermíšek, Radovan and McGinnis, Navin},

  abstractNote = {Here, we study constrained versions of the minimal supersymmetric model and investigate the hierarchy between the electroweak scale and the scale of superpartners that can be achieved without relying on specifying model parameters by more than one digit (or with better than 10% precision). This approach automatically avoids scenarios in which a large hierarchy is obtained by special choices of parameters and yet keeps scenarios that would otherwise be disfavored by various sensitivity measures. We consider models with universal gaugino and scalar masses, models with nonuniversal Higgs masses or nonuniversal gaugino masses and focus on scenarios in which all the model parameters are either of the same order or zero at the grand unification scale. Lastly, we find that the maximal hierarchy between the electroweak scale and stop masses, requiring that model parameters are not specified beyond one digit, ranges from a factor of ~10–30 for the CMSSM up to ~300 for models with nonuniversal Higgs or gaugino masses.},

  doi          = {10.1142/S0217751X18501452},

  journal      = {International Journal of Modern Physics A},

  number       = 25,

  volume       = 33,

  place        = {United States},

  year         = {2018},

  month        = {9}

}

Copy to clipboard

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DOI: https://doi.org/10.1142/S0217751X18501452

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Title: Little hierarchy in the minimally specified MSSM

Abstract

Citation Formats

Upper bounds on supersymmetric particle masses journal, August 1988

Do experiments suggest a hierarchy problem? journal, June 1998

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

About the fine-tuning price of LEP journal, August 1998

Haggling over the fine-tuning price of LEP journal, April 1999

Natural ranges of supersymmetric signals journal, June 1999

Are heavy scalars natural in minimal supergravity? journal, August 2000

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

Unusual Higgs or Supersymmetry from Natural Electroweak Symmetry Breaking journal, July 2009

A natural SUSY Higgs near 125 GeV journal, April 2012

Naturalness and the Status of Supersymmetry journal, October 2013

The last vestiges of naturalness journal, March 2014

Two-loop renormalization group equations for soft supersymmetry-breaking couplings journal, August 1994

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

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

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Haggling over the fine-tuning price of LEP
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