Axion misalignment driven to the hilltop

Co, Raymond T.; Gonzalez, Eric; Harigaya, Keisuke

doi:10.1007/JHEP05(2019)163

Title: Axion misalignment driven to the hilltop

Abstract

The QCD axion serves as a well-motivated dark matter candidate and the misalignment mechanism is known to reproduce the observed abundance with a decay constant $$f_a \simeq \mathcal{O}(10^{12})$$ GeV for a misalignment angle $$\theta_{\rm mis} \simeq \mathcal{O}(1)$$. While $$f_a \ll 10^{12}$$ GeV is of great experimental interest, the misalignment mechanism requires the axion to be very close to the hilltop, i.e. $$\theta_{\rm mis} \simeq \pi$$. This particular choice of $$\theta_{\rm mis}$$ has been understood as fine-tuning the initial condition. We offer a dynamical explanation for $$\theta_{\rm mis} \simeq \pi$$ in a class of models. The axion dynamically relaxes to the minimum of the potential by virtue of an enhanced mass in the early universe. This minimum is subsequently converted to a hilltop because the CP phase of the theory shifts by $$\pi$$ when one contribution becomes subdominant to another with an opposite sign. We demonstrate explicit and viable examples in supersymmetric models where the higher dimensional Higgs coupling with the inflaton naturally achieves both criteria. Associated phenomenology includes a strikingly sharp prediction of $$3 \times 10^9$$ GeV $$\lesssim f_a \lesssim 10^{10}$$ GeV and the absence of isocurvature perturbation.

Authors:

Co, Raymond T. ^[1];

^[1]; Harigaya, Keisuke ^[2]

Univ. of Michigan, Ann Arbor, MI (United States). Leinweber Center for Theoretical Physics
Inst. for Advanced Study, Princeton, NJ (United States)

Publication Date:: Mon May 27 00:00:00 EDT 2019

Research Org.:: Institute for Advanced Study, Princeton, NJ (United States)

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

OSTI Identifier:: 1596295

Grant/Contract Number:: SC0009988; SC0019225

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: 5; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Cosmology of Theories beyond the SM; Confi nement; Supersymmetric Gauge Theory; Supersymmetric Standard Model

Citation Formats


                    Co, Raymond T., Gonzalez, Eric, and Harigaya, Keisuke. Axion misalignment driven to the hilltop.  United States: N. p., 2019. 
Web.  doi:10.1007/JHEP05(2019)163.

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                    Co, Raymond T., Gonzalez, Eric, & Harigaya, Keisuke. Axion misalignment driven to the hilltop.  United States.  https://doi.org/10.1007/JHEP05(2019)163

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                    Co, Raymond T., Gonzalez, Eric, and Harigaya, Keisuke. Mon .  
"Axion misalignment driven to the hilltop".  United States.  https://doi.org/10.1007/JHEP05(2019)163.  https://www.osti.gov/servlets/purl/1596295.

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@article{osti_1596295,

  title        = {Axion misalignment driven to the hilltop},

  author       = {Co, Raymond T. and Gonzalez, Eric and Harigaya, Keisuke},

  abstractNote = {The QCD axion serves as a well-motivated dark matter candidate and the misalignment mechanism is known to reproduce the observed abundance with a decay constant $f_a \simeq \mathcal{O}(10^{12})$ GeV for a misalignment angle $\theta_{\rm mis} \simeq \mathcal{O}(1)$. While $f_a \ll 10^{12}$ GeV is of great experimental interest, the misalignment mechanism requires the axion to be very close to the hilltop, i.e. $\theta_{\rm mis} \simeq \pi$. This particular choice of $\theta_{\rm mis}$ has been understood as fine-tuning the initial condition. We offer a dynamical explanation for $\theta_{\rm mis} \simeq \pi$ in a class of models. The axion dynamically relaxes to the minimum of the potential by virtue of an enhanced mass in the early universe. This minimum is subsequently converted to a hilltop because the CP phase of the theory shifts by $\pi$ when one contribution becomes subdominant to another with an opposite sign. We demonstrate explicit and viable examples in supersymmetric models where the higher dimensional Higgs coupling with the inflaton naturally achieves both criteria. Associated phenomenology includes a strikingly sharp prediction of $3 \times 10^9$ GeV $\lesssim f_a \lesssim 10^{10}$ GeV and the absence of isocurvature perturbation.},

  doi          = {10.1007/JHEP05(2019)163},

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

  number       = 5,

  volume       = 2019,

  place        = {United States},

  year         = {Mon May 27 00:00:00 EDT 2019},

  month        = {Mon May 27 00:00:00 EDT 2019}

}

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Title: Axion misalignment driven to the hilltop

Abstract

Citation Formats

Constraints on axions from SN 1987A journal, March 1988

The not-so-harmless axion journal, January 1983

Naturally weak CP violation journal, March 1984

Sine-Gordon parametric resonance journal, March 1999

Cosmology of the invisible axion journal, January 1983

Resonant absorption of bosonic dark matter in molecules text, January 2017

Axion Isocurvature and Magnetic Monopoles text, January 2015

QCD Axion Dark Matter with a Small Decay Constant journal, May 2018

The dark-matter axion mass text, January 2017

The dark-matter axion mass journal, November 2017

Solving the tension between high-scale inflation and axion isocurvature perturbations journal, June 2014

Can confinement ensure natural CP invariance of strong interactions? journal, April 1980

Dynamical supersymmetry breaking in supersymmetric QCD journal, July 1984

Axion Dark Matter Detection Using Atomic Transitions journal, November 2014

Problem of Strong P and T Invariance in the Presence of Instantons journal, January 1978

Resonantly Detecting Axion-Mediated Forces with Nuclear Magnetic Resonance journal, October 2014

What is the value of the neutron electric dipole moment in the Kobayashi-Maskawa model? journal, March 1982

Strongly broken Peccei-Quinn symmetry in the early Universe journal, October 2015

Inflation and Invisible Axions journal, May 1988

Axion Misalignment Driven to the Bottom text, January 2018

Early Cosmological Period of QCD Confinement text, January 2018

Flavor conserving CP violation in invisible axion models journal, October 1986

Solving the Strong CP Problem without the Peccei-Quinn Symmetry journal, July 1984

Diluting the inflationary axion fluctuation by a stronger QCD in the early Universe text, January 2015

Thermalization after/during reheating journal, May 2014

Suppressing the QCD Axion Abundance by Hidden Monopoles text, January 2015

Strongly broken Peccei-Quinn symmetry in the early Universe text, January 2015

Suppressing the QCD axion abundance by hidden monopoles journal, February 2016

CP Conservation in the Presence of Pseudoparticles journal, June 1977

Evolution of string-wall networks and axionic domain wall problem journal, August 2011

Calculation of the axion mass based on high-temperature lattice quantum chromodynamics text, January 2016

Diluting the inflationary axion fluctuation by a stronger QCD in the early Universe journal, November 2015

Weak-Interaction Singlet and Strong CP Invariance journal, July 1979

Dynamics of oscillating scalar field in thermal environment text, January 2012

Cosmologically safe QCD axion as a present from extra dimension journal, November 2015

Axion misalignment driven to the bottom journal, May 2019

QCD axion dark matter from long-lived domain walls during matter domination text, January 2018

Moduli decay in the hot early Universe text, January 2006

Unified models of the QCD axion and supersymmetry breaking journal, August 2017

Axion miniclusters and Bose stars journal, November 1993

Suppressing Isocurvature Perturbations of QCD Axion Dark Matter text, January 2013

Calculation of the axion mass based on high-temperature lattice quantum chromodynamics journal, November 2016

Towards a medium-scale axion helioscope and haloscope text, January 2017

Dynamics of oscillating scalar field in thermal environment journal, January 2013

Scaling properties of cosmological axion strings journal, January 2019

Axions from SN1987A journal, May 1988

Resonant Absorption of Bosonic Dark Matter in Molecules journal, October 2018

A cosmological bound on the invisible axion journal, January 1983

Bounds on exotic-particle interactions from SN1987A journal, May 1988

A minimal model with natural suppresion of strong CP violation journal, September 1991

Updating the axion cold dark matter energy density journal, September 2008

Topology in full QCD at high temperature: a multicanonical approach text, January 2018

Axion cosmology with long-lived domain walls journal, January 2013

The topological susceptibility in finite temperature QCD and axion cosmology journal, November 2016

Chiral quarks and the non-relativistic quark model journal, March 1984

QCD axion dark matter from long-lived domain walls during matter domination journal, July 2018

Topology in full QCD at high temperature: a multicanonical approach journal, November 2018

Early Cosmological Period of QCD Confinement journal, March 2019

Moduli decay in the hot early Universe journal, June 2006

Constraints on light particles from supernova SN 1987A journal, July 1987

Axion Dark Matter Detection using Atomic Transitions text, January 2014

Axion Miniclusters and Bose Stars text, January 1993

Unified Models of the QCD Axion and Supersymmetry Breaking text, January 2017

A New Light Boson? journal, January 1978

Thermalization after/during Reheating text, January 2013

Suppressing isocurvature perturbations of QCD axion dark matter journal, December 2013

The Cosmology of String Theoretic Axions text, January 1996

Chiral estimate of the electric dipole moment of the neutron in quantum chromodynamics journal, December 1979

Improved Experimental Limit on the Electric Dipole Moment of the Neutron journal, September 2006

Symmetry Breaking through Bell-Jackiw Anomalies journal, July 1976

Long-term dynamics of cosmological axion strings journal, September 2018

Dielectric Haloscopes: A New Way to Detect Axion Dark Matter journal, March 2017

Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment journal, April 2018

Anharmonic evolution of the cosmic axion density spectrum journal, December 1994

Solving the strong CP problem with supersymmetry journal, August 2001

Improved limit on the electric dipole moment of the electron October 2018

Naive dimensional analysis and supersymmetry journal, February 1998

Constraints on axions from SN 1987A
journal, March 1988

The not-so-harmless axion
journal, January 1983

Naturally weak CP violation
journal, March 1984

Sine-Gordon parametric resonance
journal, March 1999

Cosmology of the invisible axion
journal, January 1983

Resonant absorption of bosonic dark matter in molecules
text, January 2017

Axion Isocurvature and Magnetic Monopoles
text, January 2015

QCD Axion Dark Matter with a Small Decay Constant
journal, May 2018

The dark-matter axion mass
text, January 2017

The dark-matter axion mass
journal, November 2017

Solving the tension between high-scale inflation and axion isocurvature perturbations
journal, June 2014

Can confinement ensure natural CP invariance of strong interactions?
journal, April 1980

Dynamical supersymmetry breaking in supersymmetric QCD
journal, July 1984

Axion Dark Matter Detection Using Atomic Transitions
journal, November 2014

Problem of Strong $P$ and $T$ Invariance in the Presence of Instantons
journal, January 1978

Resonantly Detecting Axion-Mediated Forces with Nuclear Magnetic Resonance
journal, October 2014

What is the value of the neutron electric dipole moment in the Kobayashi-Maskawa model?
journal, March 1982

Strongly broken Peccei-Quinn symmetry in the early Universe
journal, October 2015

Inflation and Invisible Axions
journal, May 1988

Axion Misalignment Driven to the Bottom
text, January 2018

Early Cosmological Period of QCD Confinement
text, January 2018

Flavor conserving CP violation in invisible axion models
journal, October 1986

Solving the Strong $CP$ Problem without the Peccei-Quinn Symmetry
journal, July 1984

Diluting the inflationary axion fluctuation by a stronger QCD in the early Universe
text, January 2015

Thermalization after/during reheating
journal, May 2014

Suppressing the QCD Axion Abundance by Hidden Monopoles
text, January 2015

Strongly broken Peccei-Quinn symmetry in the early Universe
text, January 2015

Suppressing the QCD axion abundance by hidden monopoles
journal, February 2016

$CP$ Conservation in the Presence of Pseudoparticles
journal, June 1977

Evolution of string-wall networks and axionic domain wall problem
journal, August 2011

Calculation of the axion mass based on high-temperature lattice quantum chromodynamics
text, January 2016

Diluting the inflationary axion fluctuation by a stronger QCD in the early Universe
journal, November 2015

Weak-Interaction Singlet and Strong $CP$ Invariance
journal, July 1979

Dynamics of oscillating scalar field in thermal environment
text, January 2012

Cosmologically safe QCD axion as a present from extra dimension
journal, November 2015

Axion misalignment driven to the bottom
journal, May 2019

QCD axion dark matter from long-lived domain walls during matter domination
text, January 2018

Moduli decay in the hot early Universe
text, January 2006

Unified models of the QCD axion and supersymmetry breaking
journal, August 2017

Axion miniclusters and Bose stars
journal, November 1993

Suppressing Isocurvature Perturbations of QCD Axion Dark Matter
text, January 2013

Calculation of the axion mass based on high-temperature lattice quantum chromodynamics
journal, November 2016

Towards a medium-scale axion helioscope and haloscope
text, January 2017

Dynamics of oscillating scalar field in thermal environment
journal, January 2013

Scaling properties of cosmological axion strings
journal, January 2019

Axions from SN1987A
journal, May 1988

Resonant Absorption of Bosonic Dark Matter in Molecules
journal, October 2018

A cosmological bound on the invisible axion
journal, January 1983

Bounds on exotic-particle interactions from SN1987A
journal, May 1988

A minimal model with natural suppresion of strong CP violation
journal, September 1991

Updating the axion cold dark matter energy density
journal, September 2008

Topology in full QCD at high temperature: a multicanonical approach
text, January 2018

Axion cosmology with long-lived domain walls
journal, January 2013

The topological susceptibility in finite temperature QCD and axion cosmology
journal, November 2016

Chiral quarks and the non-relativistic quark model
journal, March 1984

QCD axion dark matter from long-lived domain walls during matter domination
journal, July 2018

Topology in full QCD at high temperature: a multicanonical approach
journal, November 2018

Early Cosmological Period of QCD Confinement
journal, March 2019

Moduli decay in the hot early Universe
journal, June 2006

Constraints on light particles from supernova SN 1987A
journal, July 1987

Axion Dark Matter Detection using Atomic Transitions
text, January 2014

Axion Miniclusters and Bose Stars
text, January 1993

Unified Models of the QCD Axion and Supersymmetry Breaking
text, January 2017

A New Light Boson?
journal, January 1978

Thermalization after/during Reheating
text, January 2013

Suppressing isocurvature perturbations of QCD axion dark matter
journal, December 2013

The Cosmology of String Theoretic Axions
text, January 1996

Chiral estimate of the electric dipole moment of the neutron in quantum chromodynamics
journal, December 1979

Improved Experimental Limit on the Electric Dipole Moment of the Neutron
journal, September 2006

Symmetry Breaking through Bell-Jackiw Anomalies
journal, July 1976

Long-term dynamics of cosmological axion strings
journal, September 2018

Dielectric Haloscopes: A New Way to Detect Axion Dark Matter
journal, March 2017

Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment
journal, April 2018

Anharmonic evolution of the cosmic axion density spectrum
journal, December 1994

Solving the strong CP problem with supersymmetry
journal, August 2001

Improved limit on the electric dipole moment of the electron
October 2018

Naive dimensional analysis and supersymmetry
journal, February 1998

Counting 4π's in strongly coupled supersymmetry
journal, October 1997

Nonlinear axion dynamics and the formation of cosmological pseudosolitons
journal, May 1994

Misalignment & Co.: (pseudo-)scalar and vector dark matter with curvature couplings
journal, February 2020