Reheating in two-sector cosmology

Adshead, Peter; Ralegankar, Pranjal; Shelton, Jessie

doi:10.1007/jhep08(2019)151

Title: Reheating in two-sector cosmology

Abstract

We analyze reheating scenarios where a hidden sector is populated during reheating along with the sector containing the Standard Model. We numerically solve the Boltzmann equations describing perturbative reheating of the two sectors, including the full dependence on quantum statistics, and study how quantum statistical effects during reheating as well as the non-equilibrium inflaton-mediated energy transfer between the two sectors affects the temperature evolution of the two radiation baths. We obtain new power laws describing the temperature evolution of fermions and bosons when quantum statistics are important during reheating. We show that inflaton-mediated scattering is generically most important at radiation temperatures T ~ Mϕ/4, and build on this observation to obtain analytic estimates for the temperature asymmetry produced by asymmetric reheating. We find that for reheating temperatures Trh ≪ Mϕ/4, classical perturbative reheating provides an excellent approximation to the final temperature asymmetry, while for Trh ≫ Mϕ/4, inflaton-mediated scattering dominates the population of the colder sector and thus the final temperature asymmetry. We additionally present new techniques to calculate energy transfer rates between two relativistic species at different temperatures.

Authors:

Adshead, Peter ^[1]; Ralegankar, Pranjal ^[1]; Shelton, Jessie ^[1]

Univ. of Illinois at Urbana-Champaign, IL (United States)

Publication Date:: 2019-08-27

Research Org.:: Univ. of Illinois at Urbana-Champaign, IL (United States)

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

OSTI Identifier:: 1612758

Grant/Contract Number:: SC0017840

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: 8; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; Cosmology of Theories beyond the SM; Thermal Field Theory

Citation Formats


                    Adshead, Peter, Ralegankar, Pranjal, and Shelton, Jessie. Reheating in two-sector cosmology.  United States: N. p., 2019. 
Web.  doi:10.1007/jhep08(2019)151.

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                    Adshead, Peter, Ralegankar, Pranjal, & Shelton, Jessie. Reheating in two-sector cosmology.  United States.  https://doi.org/10.1007/jhep08(2019)151

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                    Adshead, Peter, Ralegankar, Pranjal, and Shelton, Jessie. Tue .  
"Reheating in two-sector cosmology".  United States.  https://doi.org/10.1007/jhep08(2019)151.  https://www.osti.gov/servlets/purl/1612758.

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@article{osti_1612758,

  title        = {Reheating in two-sector cosmology},

  author       = {Adshead, Peter and Ralegankar, Pranjal and Shelton, Jessie},

  abstractNote = {We analyze reheating scenarios where a hidden sector is populated during reheating along with the sector containing the Standard Model. We numerically solve the Boltzmann equations describing perturbative reheating of the two sectors, including the full dependence on quantum statistics, and study how quantum statistical effects during reheating as well as the non-equilibrium inflaton-mediated energy transfer between the two sectors affects the temperature evolution of the two radiation baths. We obtain new power laws describing the temperature evolution of fermions and bosons when quantum statistics are important during reheating. We show that inflaton-mediated scattering is generically most important at radiation temperatures T ~ Mϕ/4, and build on this observation to obtain analytic estimates for the temperature asymmetry produced by asymmetric reheating. We find that for reheating temperatures Trh ≪ Mϕ/4, classical perturbative reheating provides an excellent approximation to the final temperature asymmetry, while for Trh ≫ Mϕ/4, inflaton-mediated scattering dominates the population of the colder sector and thus the final temperature asymmetry. We additionally present new techniques to calculate energy transfer rates between two relativistic species at different temperatures.},

  doi          = {10.1007/jhep08(2019)151},

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

  number       = 8,

  volume       = 2019,

  place        = {United States},

  year         = {2019},

  month        = {8}

}

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Works referenced in this record:

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Axion reheating in the string landscape
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Works referencing / citing this record:

Leak-in dark matter
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Evans, Jared A.; Gaidau, Cristian; Shelton, Jessie
Journal of High Energy Physics, Vol. 2020, Issue 1
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Energy density, temperature, and entropy dynamics in perturbative reheating
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Di Marco, Alessandro; De Gasperis, Giancarlo; Pradisi, Gianfranco
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Similar Records

Title: Reheating in two-sector cosmology

Abstract

Citation Formats

Reheating an Inflationary Universe journal, May 1982

The four basic ways of creating dark matter through a portal journal, May 2012

Boltzmann equations for preheating journal, September 2018

Encyclopædia Inflationaris journal, December 2014

Codecaying Dark Matter journal, November 2016

Reheating after Inflation journal, December 1994

A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems journal, February 1982

Self-interacting dark matter journal, October 1992

Looking for the WIMP next door journal, February 2018

Mirror baryons as the dark matter journal, January 1993

Self-interacting dark matter from the hidden heterotic-string sector journal, February 2002

Asymmetric inflationary reheating and the nature of mirror universe journal, May 1996

Gauge-preheating and the end of axion inflation journal, December 2015

Freeze-in production of FIMP dark matter journal, March 2010

Symmetric and asymmetric reheating journal, September 2017

Freeze-In dark matter with displaced signatures at colliders journal, December 2015

Chilly dark sectors and asymmetric reheating journal, June 2016

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

Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking journal, April 1982

Particle production in the new inflationary cosmology journal, November 1982

Cosmological moduli and the post-inflationary universe: A critical review journal, July 2015

Toward (finally!) ruling out Z and Higgs mediated dark matter models journal, December 2016

Thermal relics in hidden sectors journal, October 2008

Origins of hidden sector dark matter I: cosmology journal, March 2011

Dark matter freeze-out in a nonrelativistic sector journal, August 2016

Thermal dark matter from a highly decoupled sector journal, November 2016

Concentrated dark matter: Enhanced small-scale structure from codecaying dark matter journal, March 2018

Non-Abelian dark forces and the relic densities of dark glueballs journal, January 2017

Dynamical Dark Matter from strongly-coupled dark sectors journal, February 2017

Long-lived light mediator to dark matter and primordial small scale spectrum journal, May 2015

Axion reheating in the string landscape journal, April 2019

Reheating stage after inflation journal, December 2003

The kinematics of cosmic reheating journal, October 2013

Nonthermal production of dark radiation and dark matter journal, September 2016

Inflationary universe: A possible solution to the horizon and flatness problems journal, January 1981

Equation of State and Duration to Radiation Domination after Inflation journal, August 2017

Coherent scalar-field oscillations in an expanding universe journal, September 1983

Particle production during out-of-equilibrium phase transitions journal, October 1990

Production of massive particles during reheating journal, August 1999

Fermion production during and after axion inflation journal, November 2015

Probing light thermal dark matter with a Higgs portal mediator journal, October 2016

Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom journal, December 2016

Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter journal, February 2002

Preheating with trilinear interactions: tachyonic resonance journal, July 2006

Leak-in dark matter journal, January 2020

Energy density, temperature, and entropy dynamics in perturbative reheating journal, December 2019

Reheating an Inflationary Universe
journal, May 1982

The four basic ways of creating dark matter through a portal
journal, May 2012

Boltzmann equations for preheating
journal, September 2018

Encyclopædia Inflationaris
journal, December 2014

Codecaying Dark Matter
journal, November 2016

Reheating after Inflation
journal, December 1994

A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
journal, February 1982

Self-interacting dark matter
journal, October 1992

Looking for the WIMP next door
journal, February 2018

Mirror baryons as the dark matter
journal, January 1993

Self-interacting dark matter from the hidden heterotic-string sector
journal, February 2002

Asymmetric inflationary reheating and the nature of mirror universe
journal, May 1996

Gauge-preheating and the end of axion inflation
journal, December 2015

Freeze-in production of FIMP dark matter
journal, March 2010

Symmetric and asymmetric reheating
journal, September 2017

Freeze-In dark matter with displaced signatures at colliders
journal, December 2015

Chilly dark sectors and asymmetric reheating
journal, June 2016

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

Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
journal, April 1982

Particle production in the new inflationary cosmology
journal, November 1982

Cosmological moduli and the post-inflationary universe: A critical review
journal, July 2015

Toward (finally!) ruling out Z and Higgs mediated dark matter models
journal, December 2016

Thermal relics in hidden sectors
journal, October 2008

Origins of hidden sector dark matter I: cosmology
journal, March 2011

Dark matter freeze-out in a nonrelativistic sector
journal, August 2016

Thermal dark matter from a highly decoupled sector
journal, November 2016

Concentrated dark matter: Enhanced small-scale structure from codecaying dark matter
journal, March 2018

Non-Abelian dark forces and the relic densities of dark glueballs
journal, January 2017

Dynamical Dark Matter from strongly-coupled dark sectors
journal, February 2017

Long-lived light mediator to dark matter and primordial small scale spectrum
journal, May 2015

Axion reheating in the string landscape
journal, April 2019

Reheating stage after inflation
journal, December 2003

The kinematics of cosmic reheating
journal, October 2013

Nonthermal production of dark radiation and dark matter
journal, September 2016

Inflationary universe: A possible solution to the horizon and flatness problems
journal, January 1981

Equation of State and Duration to Radiation Domination after Inflation
journal, August 2017

Coherent scalar-field oscillations in an expanding universe
journal, September 1983

Particle production during out-of-equilibrium phase transitions
journal, October 1990

Production of massive particles during reheating
journal, August 1999

Fermion production during and after axion inflation
journal, November 2015

Probing light thermal dark matter with a Higgs portal mediator
journal, October 2016

Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom
journal, December 2016

Thermally Generated Gauge Singlet Scalars as Self-Interacting Dark Matter
journal, February 2002

Preheating with trilinear interactions: tachyonic resonance
journal, July 2006

Leak-in dark matter
journal, January 2020

Energy density, temperature, and entropy dynamics in perturbative reheating
journal, December 2019