Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale

Ellis, John; Garcia, Marcos A. G.; Nagata, Natsumi; Nanopoulos, Dimitri V.; Olive, Keith A.

doi:10.1088/1475-7516/2020/01/035

Title: Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale

Abstract

We develop a string-inspired model for particle cosmology, based on a flipped SU(5)×U(1) gauge group formulated in a no-scale supergravity framework. The model realizes Starobinsky-like inflation, which we assume to be followed by strong reheating, with the GUT symmetry being broken subsequently by a light ‘flaton’ field whose decay generates a second stage of reheating. We discuss the production of gravitinos and the non-thermal contribution made by their decays to the density of cold dark matter, which is assumed to be provided by the lightest neutralino. We also discuss the masses of light and heavy neutrinos and leptogenesis. As discussed previously, a key rôle is played by a superpotential coupling between the inflaton, matter and GUT Higgs fields, called λ₆. We scan over possible values of λ₆, exploring the correlations between the possible values of observables. We emphasize that the release of entropy during the GUT transition allows large regions of supersymmetry-breaking parameter space that would otherwise lead to severe overdensity of dark matter. Furthermore, we find that the Big Bang nucleosynthesis lower limit on the reheating temperature of ~ 1 MeV restricts the supersymmetry-breaking scale to a range O(10) TeV that is consistent with the absence of supersymmetric particlesmore » at the LHC.« less

Authors:

Ellis, John ^[1]; Garcia, Marcos A. G. ^[2]; Nagata, Natsumi ^[3]; Nanopoulos, Dimitri V. ^[4]; Olive, Keith A. ^[5]

King's College, London (United Kingdom). Dept. of Physics. Theoretical Particle Physics and Cosmology Group; European Organization for Nuclear Research (CERN), Geneva (Switzerland). Theoretical Physics Dept.; National Inst. of Chemical Physics and Biophysics, Tallinn (Estonia)
Instituto de Fısica Teorica (IFT) UAM-CSIC, Campus de Cantoblanco, Madrid (Spain)
Univ. of Tokyo (Japan). Dept. of Physics
Texas A & M Univ., College Station, TX (United States). George P. and Cynthia W. Mitchell Inst. for Fundamental Physics and Astronomy; Houston Advanced Research Center (HARC), Mitchell Campus, Woodlands, TX (United States). Astroparticle Physics Group; Academy of Athens (Greece). Division of Natural Sciences
Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy. William I. Fine Theoretical Physics Inst.

Publication Date:: Wed Jan 01 00:00:00 EST 2020

Research Org.:: Texas A & M Univ., College Station, TX (United States); Univ. of Minnesota, Minneapolis, MN (United States); Univ. of California, Oakland, CA (United States)

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

OSTI Identifier:: 1802181

Grant/Contract Number:: SC0010813; SC0011842; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Cosmology and Astroparticle Physics

Additional Journal Information:: Journal Volume: 2020; Journal Issue: 01; Journal ID: ISSN 1475-7516

Publisher:: Institute of Physics (IOP)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; Physics

Citation Formats


                    Ellis, John, Garcia, Marcos A. G., Nagata, Natsumi, Nanopoulos, Dimitri V., and Olive, Keith A. Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale.  United States: N. p., 2020. 
Web.  doi:10.1088/1475-7516/2020/01/035.

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                    Ellis, John, Garcia, Marcos A. G., Nagata, Natsumi, Nanopoulos, Dimitri V., & Olive, Keith A. Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale.  United States.  https://doi.org/10.1088/1475-7516/2020/01/035

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                    Ellis, John, Garcia, Marcos A. G., Nagata, Natsumi, Nanopoulos, Dimitri V., and Olive, Keith A. Wed .  
"Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale".  United States.  https://doi.org/10.1088/1475-7516/2020/01/035.  https://www.osti.gov/servlets/purl/1802181.

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@article{osti_1802181,

  title        = {Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale},

  author       = {Ellis, John and Garcia, Marcos A. G. and Nagata, Natsumi and Nanopoulos, Dimitri V. and Olive, Keith A.},

  abstractNote = {We develop a string-inspired model for particle cosmology, based on a flipped SU(5)×U(1) gauge group formulated in a no-scale supergravity framework. The model realizes Starobinsky-like inflation, which we assume to be followed by strong reheating, with the GUT symmetry being broken subsequently by a light ‘flaton’ field whose decay generates a second stage of reheating. We discuss the production of gravitinos and the non-thermal contribution made by their decays to the density of cold dark matter, which is assumed to be provided by the lightest neutralino. We also discuss the masses of light and heavy neutrinos and leptogenesis. As discussed previously, a key rôle is played by a superpotential coupling between the inflaton, matter and GUT Higgs fields, called λ6. We scan over possible values of λ6, exploring the correlations between the possible values of observables. We emphasize that the release of entropy during the GUT transition allows large regions of supersymmetry-breaking parameter space that would otherwise lead to severe overdensity of dark matter. Furthermore, we find that the Big Bang nucleosynthesis lower limit on the reheating temperature of ~ 1 MeV restricts the supersymmetry-breaking scale to a range O(10) TeV that is consistent with the absence of supersymmetric particles at the LHC.},

  doi          = {10.1088/1475-7516/2020/01/035},

  journal      = {Journal of Cosmology and Astroparticle Physics},

  number       = 01,

  volume       = 2020,

  place        = {United States},

  year         = {Wed Jan 01 00:00:00 EST 2020},

  month        = {Wed Jan 01 00:00:00 EST 2020}

}

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Buchmueller, O.; Citron, M.; Ellis, J.
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More on cosmology for supersymmetric GUTS
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Ellis, John; Garcia, Marcos A. G.; Nagata, Natsumi
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Bagnaschi, E.; Bahl, H.; Ellis, J.
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Dark matter detection in focus point supersymmetry
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Ellis, John; Olive, Keith A.; Santoso, Yudi
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Stop coannihilation in the CMSSM and SubGUT models
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Title: Superstring-inspired particle cosmology: inflation, neutrino masses, leptogenesis, dark matter & the SUSY scale

Abstract

Citation Formats

Reheating stage after inflation journal, December 2003

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

Supersymmetric relics from the big bang journal, June 1984

SUSY-GUTs, SUSY-Seesaw and the neutralino dark matter journal, September 2007

Multi-TeV Scalars are Natural in Minimal Supergravity journal, March 2000

Thermal and non-thermal production of gravitinos in the early universe journal, November 1999

Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis journal, May 1995

LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection journal, February 2019

Ordinary predictions from grand principles: t-quark mass in O(10) journal, August 1979

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

Naturally vanishing cosmological constant in N=1 supergravity journal, December 1983

Publisher’s Note: No-Scale Supergravity Realization of the Starobinsky Model of Inflation [Phys. Rev. Lett. 111 , 111301 (2013)] journal, September 2013

Nonthermal dark matter from modified early matter domination journal, April 2019

The road to no-scale supergravity journal, January 1987

Cosmological gravitino regeneration and decay journal, September 1984

μ→eγ at a rate of one out of 109 muon decays? journal, April 1977

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

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

Thermal gravitino production and collider tests of leptogenesis journal, January 2007

Baryogenesis via leptogenesis journal, January 1992

Thermal relics: Do we know their abundances? journal, November 1990

The extent of the stop coannihilation strip journal, July 2014

Big-bang nucleosynthesis with unstable gravitino and upper bound on the reheating temperature journal, June 2006

Symmetry breaking and reheating after inflation in no-scale flipped SU(5) journal, April 2019

Search for natural and split supersymmetry in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV in final states with jets and missing transverse momentum journal, May 2018

Supercosmology revitalized journal, October 1987

Limits on new superweakly interacting particles from primordial nucleosynthesis journal, May 1981

Thermalization after/during reheating journal, May 2014

Supersymmetric dark matter after LHC run 1 journal, October 2015

Nonperturbative dynamics of reheating after inflation: A review journal, December 2014

Barygenesis without grand unification journal, June 1986

CP violating decays in leptogenesis scenarios journal, September 1996

Dark matter freeze-out during matter domination journal, September 2018

Starobinsky-like inflation, supercosmology and neutrino masses in no-scale flipped SU(5) journal, July 2017

Thermal production of gravitinos journal, July 2001

Inflation, neutrino baryogenesis, and (s)neutrino-induced baryogenesis journal, June 1993

Naturally massless Higgs doublets in supersymmetric SU(5) journal, September 1982

Big-bang nucleosynthesis and gravitinos journal, September 2008

Neutrino decay and spontaneous violation of lepton number journal, February 1982

What if supersymmetry breaking unifies beyond the GUT scale? journal, July 2010

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

Constraints on cosmologically regenerated gravitinos journal, September 1985

Thermal production of gravitinos journal, April 2007

Proton decay in a class of supersymmetric grand unified models journal, April 1982

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

Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of θ23, δCP, and the mass ordering journal, January 2019

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

U ( 1 ) R inspired inflation model in no-scale supergravity journal, May 2019

Search for squarks and gluinos in final states with jets and missing transverse momentum using 36 fb − 1 of s = 13 TeV p p collision data with the ATLAS detector journal, June 2018

Super-cosmology journal, April 1982

Inflation can save the gravitino journal, December 1982

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

Neutrino masses in SU(2) ⊗ U(1) theories journal, November 1980

Gravitino dark matter and cosmological constraints journal, September 2006

Unified no-scale attractors journal, September 2019

On anomalous electroweak baryon-number non-conservation in the early universe journal, May 1985

Supersymmetry at ordinary energies. Masses and conservation laws journal, July 1982

An improved flipped SU(5)×U(1) model from the four-dimensional string journal, July 1988

Dimensional reduction of superstring models journal, May 1985

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1 journal, June 2019

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

Effect of a late decaying scalar on the neutralino relic density journal, October 2006

A supersymmetric SU(5) gauge theory with no gauge hierarchy problem journal, October 1982

Search for new phenomena with the $$M_{\mathrm {T2}}$$ M T 2 variable in the all-hadronic final state produced in proton–proton collisions at $$\sqrt{s} = 13$$ s = 13 $$\,\text {TeV}$$ TeV journal, October 2017

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

Supersymmetric flipped SU(5) revitalized journal, August 1987

Big bang nucleosynthesis: Present status journal, February 2016

Phenomenology of GUT-less supersymmetry breaking journal, June 2007

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

A no-scale supergravity framework for sub-Planckian physics journal, February 2014

Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector journal, June 2018

Search for tau flavour violation at the LHC journal, May 2009

Dissipative effects on reheating after inflation journal, March 2013

Study of constrained minimal supersymmetry journal, June 1994

The Higgs mass beyond the CMSSM journal, April 2013

Reheating stage after inflation
journal, December 2003

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

Supersymmetric relics from the big bang
journal, June 1984

SUSY-GUTs, SUSY-Seesaw and the neutralino dark matter
journal, September 2007

Multi-TeV Scalars are Natural in Minimal Supergravity
journal, March 2000

Thermal and non-thermal production of gravitinos in the early universe
journal, November 1999

Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis
journal, May 1995

LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection
journal, February 2019

Ordinary predictions from grand principles: t-quark mass in O(10)
journal, August 1979

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

Naturally vanishing cosmological constant in N=1 supergravity
journal, December 1983

Publisher’s Note: No-Scale Supergravity Realization of the Starobinsky Model of Inflation [Phys. Rev. Lett. 111 , 111301 (2013)]
journal, September 2013

Nonthermal dark matter from modified early matter domination
journal, April 2019

The road to no-scale supergravity
journal, January 1987

Cosmological gravitino regeneration and decay
journal, September 1984

μ→eγ at a rate of one out of 109 muon decays?
journal, April 1977

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

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

Thermal gravitino production and collider tests of leptogenesis
journal, January 2007

Baryogenesis via leptogenesis
journal, January 1992

Thermal relics: Do we know their abundances?
journal, November 1990

The extent of the stop coannihilation strip
journal, July 2014

Big-bang nucleosynthesis with unstable gravitino and upper bound on the reheating temperature
journal, June 2006

Symmetry breaking and reheating after inflation in no-scale flipped SU(5)
journal, April 2019

Search for natural and split supersymmetry in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV in final states with jets and missing transverse momentum
journal, May 2018

Supercosmology revitalized
journal, October 1987

Limits on new superweakly interacting particles from primordial nucleosynthesis
journal, May 1981

Thermalization after/during reheating
journal, May 2014

Supersymmetric dark matter after LHC run 1
journal, October 2015

Nonperturbative dynamics of reheating after inflation: A review
journal, December 2014

Barygenesis without grand unification
journal, June 1986

CP violating decays in leptogenesis scenarios
journal, September 1996

Dark matter freeze-out during matter domination
journal, September 2018

Starobinsky-like inflation, supercosmology and neutrino masses in no-scale flipped SU(5)
journal, July 2017

Thermal production of gravitinos
journal, July 2001

Inflation, neutrino baryogenesis, and (s)neutrino-induced baryogenesis
journal, June 1993

Naturally massless Higgs doublets in supersymmetric SU(5)
journal, September 1982

Big-bang nucleosynthesis and gravitinos
journal, September 2008

Neutrino decay and spontaneous violation of lepton number
journal, February 1982

What if supersymmetry breaking unifies beyond the GUT scale?
journal, July 2010

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
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journal, September 1985

Thermal production of gravitinos
journal, April 2007

Proton decay in a class of supersymmetric grand unified models
journal, April 1982

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

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journal, March 2014

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journal, January 2019

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

U ( 1 ) R inspired inflation model in no-scale supergravity
journal, May 2019

Search for squarks and gluinos in final states with jets and missing transverse momentum using $36 {fb}^{- 1}$ of $\sqrt{s} = 13 TeV$ $p p$ collision data with the ATLAS detector
journal, June 2018

Super-cosmology
journal, April 1982

Inflation can save the gravitino
journal, December 1982

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

Neutrino masses in SU(2) ⊗ U(1) theories
journal, November 1980

Gravitino dark matter and cosmological constraints
journal, September 2006

Unified no-scale attractors
journal, September 2019

On anomalous electroweak baryon-number non-conservation in the early universe
journal, May 1985

Supersymmetry at ordinary energies. Masses and conservation laws
journal, July 1982

An improved flipped SU(5)×U(1) model from the four-dimensional string
journal, July 1988

Dimensional reduction of superstring models
journal, May 1985

FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
journal, June 2019

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

Effect of a late decaying scalar on the neutralino relic density
journal, October 2006

A supersymmetric SU(5) gauge theory with no gauge hierarchy problem
journal, October 1982

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journal, October 2017

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journal, May 1991

Supersymmetric flipped SU(5) revitalized
journal, August 1987

Big bang nucleosynthesis: Present status
journal, February 2016

Phenomenology of GUT-less supersymmetry breaking
journal, June 2007

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journal, November 2006

A no-scale supergravity framework for sub-Planckian physics
journal, February 2014

Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector
journal, June 2018

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journal, May 2009

Dissipative effects on reheating after inflation
journal, March 2013

Study of constrained minimal supersymmetry
journal, June 1994

The Higgs mass beyond the CMSSM
journal, April 2013

Neutralino relic density in minimal $N = 1$ supergravity
journal, January 1993

Nuclear reaction uncertainties, massive gravitino decays and the cosmological lithium problem
journal, October 2010

Supersymmetric grand unified theories and the early universe
journal, July 1982