Naturalness in D-brane inspired models

De Benedetti, Ron; Li, Tianjun; Maxin, James A.; Nanopoulos, Dimitri V.

doi:10.1007/jhep07(2019)048

Title: Naturalness in D-brane inspired models

Abstract

We examine the naturalness of the D-brane inspired model constructed in flipped SU(5) supplemented with vector-like particles at the TeV scale, dubbed flippons. We find the model can produce a mainly Higgsino-like lightest supersymmetric particle (LSP) and small light stops, as favored by naturalness. In fact, a large trilinear scalar At term at the electroweak (EW) scale creates a large mass splitting between the top squarks, driving the light stop to near degeneracy with an LSP that is almost all Higgsino, with ΔM(t~1,χ~01)< 5GeV, evading the LHC constraint on t~1→cχ~01 thus far. Given the smallness of the light stop, generating a 125 GeV light Higgs boson mass is aided by one-loop contributions from the Yukawa couplings between the flippons and Higgs fields. The resulting parameter space satisfying naturalness is rather constrained, thus we assess its viability by means of comparison to the LHC constraint on soft charm jets and direction detection limits on spin-independent cross-sections. Finally, we compute the level of electroweak fine-tuning and uncover a region with ΔEW< 30, i.e., fine-tuning better than 3%, regarded as low electroweak fine-tuning. Given the small light stop, the electroweak fine-tuning from only the top squarks is of O(1), indicating no fine-tuning frommore »« less

Authors:

De Benedetti, Ron ^[1]; Li, Tianjun ^[2];

^[1]; Nanopoulos, Dimitri V. ^[3]

Louisiana State Univ., Baton Rouge, LA (United States)
Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences (CAS), Beijing (China)
Texas A & M Univ., College Station, TX (United States); Academy of Athens (Greece); Houston Advanced Research Center, Houston, TX (United States)

Publication Date:: Tue Jul 09 00:00:00 EDT 2019

Research Org.:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1611522

Grant/Contract Number:: SC0010813

Resource Type:: Accepted Manuscript

Journal Name:: Journal of High Energy Physics (Online)

Additional Journal Information:: Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2019; Journal Issue: 7; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; Supersymmetry Phenomenology; Strings and branes phenomenology

Citation Formats


                    De Benedetti, Ron, Li, Tianjun, Maxin, James A., and Nanopoulos, Dimitri V. Naturalness in D-brane inspired models.  United States: N. p., 2019. 
Web.  doi:10.1007/jhep07(2019)048.

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                    De Benedetti, Ron, Li, Tianjun, Maxin, James A., & Nanopoulos, Dimitri V. Naturalness in D-brane inspired models.  United States.  https://doi.org/10.1007/jhep07(2019)048

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                    De Benedetti, Ron, Li, Tianjun, Maxin, James A., and Nanopoulos, Dimitri V. Tue .  
"Naturalness in D-brane inspired models".  United States.  https://doi.org/10.1007/jhep07(2019)048.  https://www.osti.gov/servlets/purl/1611522.

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@article{osti_1611522,

  title        = {Naturalness in D-brane inspired models},

  author       = {De Benedetti, Ron and Li, Tianjun and Maxin, James A. and Nanopoulos, Dimitri V.},

  abstractNote = {We examine the naturalness of the D-brane inspired model constructed in flipped SU(5) supplemented with vector-like particles at the TeV scale, dubbed flippons. We find the model can produce a mainly Higgsino-like lightest supersymmetric particle (LSP) and small light stops, as favored by naturalness. In fact, a large trilinear scalar At term at the electroweak (EW) scale creates a large mass splitting between the top squarks, driving the light stop to near degeneracy with an LSP that is almost all Higgsino, with ΔM(t~1,χ~01)< 5GeV, evading the LHC constraint on t~1→cχ~01 thus far. Given the smallness of the light stop, generating a 125 GeV light Higgs boson mass is aided by one-loop contributions from the Yukawa couplings between the flippons and Higgs fields. The resulting parameter space satisfying naturalness is rather constrained, thus we assess its viability by means of comparison to the LHC constraint on soft charm jets and direction detection limits on spin-independent cross-sections. Finally, we compute the level of electroweak fine-tuning and uncover a region with ΔEW< 30, i.e., fine-tuning better than 3%, regarded as low electroweak fine-tuning. Given the small light stop, the electroweak fine-tuning from only the top squarks is of O(1), indicating no fine-tuning from neither the light stop t~1 nor the heavy stop t~2.},

  doi          = {10.1007/jhep07(2019)048},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 7,

  volume       = 2019,

  place        = {United States},

  year         = {Tue Jul 09 00:00:00 EDT 2019},

  month        = {Tue Jul 09 00:00:00 EDT 2019}

}

Copy to clipboard

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Title: Naturalness in D-brane inspired models

Abstract

Citation Formats

Supersymmetric flipped SU(5) revitalized journal, August 1987

Probing the No-Scale F - SU (5) one-parameter model via gluino searches at the LHC2 journal, October 2017

The search for a realistic flipped SU(5) string model journal, July 1993

Inspiration from intersecting D-branes: general supersymmetry breaking soft terms in no-scale $$\mathcal{F}$$ F -SU(5) journal, November 2018

Observables in Low-Energy Superstring Models journal, April 1986

A new symmetry breaking pattern for SO(10) and proton decay journal, May 1982

Confronting electroweak fine-tuning with No-Scale Supergravity journal, January 2015

Flipped models from F-theory journal, May 2010

The return of the King: No-Scale F - SU (5) journal, January 2017

Flipped and unflipped as type IIA flux vacua journal, September 2006

Upper bounds on supersymmetric particle masses journal, August 1988

Review of Particle Physics text, January 2008

Testable flipped models journal, June 2007

Naturalness and dark matter in a realistic intersecting D6-brane model journal, June 2018

Complete Tenth-Order QED Contribution to the Muon g − 2 journal, September 2012

Dark matter direct detection rate in a generic model with micrOMEGAs_2.2 journal, May 2009

The flipped SU(5)×U(1) string model revamped journal, November 1989

Flipped from orbifold with Wilson line journal, May 2007

Flipped angles and phases: a systematic study journal, June 1993

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

Anti-Su(5) journal, May 1984

Heterotic GUT and Standard Model vacua from simply connected Calabi–Yau manifolds journal, September 2006

Lp approximation by multivariate Baskakov–Kantorovich operators journal, December 2008

Dark matter, proton decay and other phenomenological constraints in journal, July 2011

Review of Particle Physics journal, August 2018

SuSpect: A Fortran code for the Supersymmetric and Higgs particle spectrum in the MSSM journal, March 2007

Flipped heavy neutrinos. From the solar neutrino problem to baryogenesis journal, February 1993

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Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data journal, May 2015

A Higgs mass shift to 125 GeV and a multi-jet supersymmetry signal: Miracle of the flippons at the s = 7 TeV LHC journal, March 2012

Probing the Planck scale with proton decay journal, January 2005

Flipped SU(5) from D-branes with type IIB fluxes journal, February 2006

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Review of Particle Physics text, January 2012

Confronting Electroweak Fine-tuning with No-Scale Supergravity text, January 2014

The Return of the King: No-Scale ${\cal F}$-$SU(5)$ text, January 2016

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Anti-Su(5) journal, May 1984

Probing the No-Scale ${\cal F}$-$SU(5)$ One-Parameter Model via Gluino Searches at the LHC2 text, January 2017

Supersymmetric flipped SU(5) revitalized
journal, August 1987

Probing the No-Scale $F$ - SU (5) one-parameter model via gluino searches at the LHC2
journal, October 2017

The search for a realistic flipped SU(5) string model
journal, July 1993

Inspiration from intersecting D-branes: general supersymmetry breaking soft terms in no-scale $$\mathcal{F}$$ F -SU(5)
journal, November 2018

Observables in Low-Energy Superstring Models
journal, April 1986

A new symmetry breaking pattern for SO(10) and proton decay
journal, May 1982

Confronting electroweak fine-tuning with No-Scale Supergravity
journal, January 2015

Flipped models from F-theory
journal, May 2010

The return of the King: No-Scale $F$ - SU (5)
journal, January 2017

Flipped and unflipped as type IIA flux vacua
journal, September 2006

Upper bounds on supersymmetric particle masses
journal, August 1988

Review of Particle Physics
text, January 2008

Testable flipped models
journal, June 2007

Naturalness and dark matter in a realistic intersecting D6-brane model
journal, June 2018

Complete Tenth-Order QED Contribution to the Muon $g - 2$
journal, September 2012

Dark matter direct detection rate in a generic model with micrOMEGAs_2.2
journal, May 2009

The flipped SU(5)×U(1) string model revamped
journal, November 1989

Flipped from orbifold with Wilson line
journal, May 2007

Flipped angles and phases: a systematic study
journal, June 1993

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

Anti-Su(5)
journal, May 1984

Heterotic GUT and Standard Model vacua from simply connected Calabi–Yau manifolds
journal, September 2006

Lp approximation by multivariate Baskakov–Kantorovich operators
journal, December 2008

Dark matter, proton decay and other phenomenological constraints in
journal, July 2011

Review of Particle Physics
journal, August 2018

SuSpect: A Fortran code for the Supersymmetric and Higgs particle spectrum in the MSSM
journal, March 2007

Flipped heavy neutrinos. From the solar neutrino problem to baryogenesis
journal, February 1993

No-scale $\mathcal{F}$ -SU (5) in the light of the LHC, Planck and XENON
journal, October 2013

NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
journal, September 2013

Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data
journal, May 2015

A Higgs mass shift to 125 GeV and a multi-jet supersymmetry signal: Miracle of the flippons at the $\sqrt{s} = 7 TeV$ LHC
journal, March 2012

Probing the Planck scale with proton decay
journal, January 2005

Flipped SU(5) from D-branes with type IIB fluxes
journal, February 2006

Review of Particle Physics
text, January 2018

N=8 non-linear supersymmetric mechanics
journal, February 2006

Review of Particle Physics
text, January 2012

Confronting Electroweak Fine-tuning with No-Scale Supergravity
text, January 2014

The Return of the King: No-Scale ${\cal F}$-$SU(5)$
text, January 2016

Probing the No-Scale ${\cal F}$-$SU(5)$ One-Parameter Model via Gluino Searches at the LHC2
text, January 2017

Flipped Angles and Phases: A Systematic Study
text, January 1993

Anti-Su(5)
journal, May 1984

Probing the No-Scale ${\cal F}$-$SU(5)$ One-Parameter Model via Gluino Searches at the LHC2
text, January 2017