Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings

Dermíšek, Radovan; McGinnis, Navin

doi:10.1103/PhysRevD.97.055009

Title: Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings

Abstract

We use the IR fixed point predictions for gauge couplings and the top Yukawa coupling in the minimal supersymmetric model (MSSM) extended with vectorlike families to infer the scale of vectorlike matter and superpartners. We quote results for several extensions of the MSSM and present results in detail for the MSSM extended with one complete vectorlike family. We find that for a unified gauge coupling α G > 0.3 vectorlike matter or superpartners are expected within 1.7 TeV (2.5 TeV) based on all three gauge couplings being simultaneously within 1.5% (5%) from observed values. This range extends to about 4 TeV for α G > 0.2 . We also find that in the scenario with two additional large Yukawa couplings of vectorlike quarks the IR fixed point value of the top Yukawa coupling independently points to a multi-TeV range for vectorlike matter and superpartners. Assuming a universal value for all large Yukawa couplings at the grand unified theory scale, the measured top quark mass can be obtained from the IR fixed point for tan β ≃ 4 . The range expands to any tan β > 3 for significant departures from the universality assumption. Considering that the Higgs boson massmore »« less

Authors:: Dermíšek, Radovan; McGinnis, Navin

Publication Date:: Tue Mar 06 00:00:00 EST 2018

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

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

OSTI Identifier:: 1423928

Alternate Identifier(s):: OSTI ID: 1498843

Grant/Contract Number:: SC0010120

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 97 Journal Issue: 5; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Dermíšek, Radovan, and McGinnis, Navin. Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevD.97.055009.

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                    Dermíšek, Radovan, & McGinnis, Navin. Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings.  United States.  https://doi.org/10.1103/PhysRevD.97.055009

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                    Dermíšek, Radovan, and McGinnis, Navin. Tue .  
"Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings".  United States.  https://doi.org/10.1103/PhysRevD.97.055009.

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@article{osti_1423928,

  title        = {Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings},

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

  abstractNote = {We use the IR fixed point predictions for gauge couplings and the top Yukawa coupling in the minimal supersymmetric model (MSSM) extended with vectorlike families to infer the scale of vectorlike matter and superpartners. We quote results for several extensions of the MSSM and present results in detail for the MSSM extended with one complete vectorlike family. We find that for a unified gauge coupling α G > 0.3 vectorlike matter or superpartners are expected within 1.7 TeV (2.5 TeV) based on all three gauge couplings being simultaneously within 1.5% (5%) from observed values. This range extends to about 4 TeV for α G > 0.2 . We also find that in the scenario with two additional large Yukawa couplings of vectorlike quarks the IR fixed point value of the top Yukawa coupling independently points to a multi-TeV range for vectorlike matter and superpartners. Assuming a universal value for all large Yukawa couplings at the grand unified theory scale, the measured top quark mass can be obtained from the IR fixed point for tan β ≃ 4 . The range expands to any tan β > 3 for significant departures from the universality assumption. Considering that the Higgs boson mass also points to a multi-TeV range for superpartners in the MSSM, adding a complete vectorlike family at the same scale provides a compelling scenario where the values of gauge couplings and the top quark mass are understood as a consequence of the particle content of the model},

  doi          = {10.1103/PhysRevD.97.055009},

  journal      = {Physical Review. D.},

  number       = 5,

  volume       = 97,

  place        = {United States},

  year         = {Tue Mar 06 00:00:00 EST 2018},

  month        = {Tue Mar 06 00:00:00 EST 2018}

}

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Title: Mass scale of vectorlike matter and superpartners from IR fixed point predictions of gauge and top Yukawa couplings

Abstract

Citation Formats

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Loop suppressed electroweak symmetry breaking and naturally heavy superpartners journal, January 2017

Weinberg angle without grand unification journal, October 1993

Semi-perturbative unification with extra vector-like families journal, May 2000

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An alternative to perturbative grand unification: How asymptotically non-free theorues can successfully predict low-energy gauge couplings
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Strong unification
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Review of Particle Physics
journal, October 2016

Universal Landau pole and physics below the 100 TeV scale
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Explanation of the muon $g - 2$ anomaly with vectorlike leptons and its implications for Higgs decays
journal, July 2013

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New vector boson near the $Z$ -pole and the puzzle in precision electroweak data
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Extra vectorlike matter and the lightest Higgs scalar boson mass in low-energy supersymmetry
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journal, April 1997

Beautiful mirrors and precision electroweak data
journal, January 2002

Mass and mixing angle predictions from infra-red fixed points
journal, January 1981

Regularization dependence of running couplings in softly broken supersymmetry
journal, December 1993

Bounds on the number and masses of quarks and leptons
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The effect of Yukawa couplings on unification predictions and the non-perturbative limit
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Anthropic solution to the magnetic muon anomaly: the charged see-saw
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Higgs couplings and precision electroweak data
journal, January 2013

Asymptotic behaviour of supersymmetric Yang-Mills theories in the two-loop approximation
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Two-loop renormalization group equations for soft supersymmetry-breaking couplings
journal, August 1994

Unification of gauge couplings in the standard model with extra vectorlike families
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Two-loop renormalization group equations in a general quantum field theory (II). Yukawa couplings
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Loop suppressed electroweak symmetry breaking and naturally heavy superpartners
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