Built on

D. C. Kelly, Collision Operator for a Relativistic Lorentz Gas , Phys. Fluids 12
1969
Earlier work this paper cites.
J. Silk and M. S. Turner, Double Inflation , Phys. Rev. D35
1987
Earlier work this paper cites.
E. W. Kolb and M. S. Turner, The Early Universe , Front. Phys. 69
1990
Earlier work this paper cites.
M. Drees and K.-i. Hikasa, Heavy Quark Thresholds in Higgs Physics , Phys. Rev. D41
1990
Earlier work this paper cites.
D. Polarski and A. A. Starobinsky, Spectra of perturbations produced by double inflation with an intermediate matter dominated stage , Nucl. Phys. B385
1992
Earlier work this paper cites.
S. Dodelson, E. Gates and A. Stebbins, Cold + hot dark matter and the cosmic microwave background , Astrophys. J. 467
1996
Earlier work this paper cites.
Z. G. Berezhiani, A. D. Dolgov and R. N. Mohapatra, Asymmetric inflationary reheating and the nature of mirror universe , Phys. Lett. B375
1996
Earlier work this paper cites.
J. Edsjo and P. Gondolo, Neutralino relic density including coannihilations , Phys. Rev. D56
1997
Earlier work this paper cites.
D. Wands, N. Bartolo, S. Matarrese and A. Riotto, An Observational test of two-field inflation , Phys. Rev. D66
2002
Earlier work this paper cites.
W. Hu and T. Okamoto, Principal power of the CMB , Phys. Rev. D69
2004
Earlier work this paper cites.
G. Mangano, G. Miele, S. Pastor, T. Pinto, O. Pisanti and P. D. Serpico, Relic neutrino decoupling including flavor oscillations , Nucl. Phys. B729
2005
Earlier work this paper cites.
Z. Chacko, H.-S. Goh and R. Harnik, The Twin Higgs: Natural electroweak breaking from mirror symmetry , Phys. Rev. Lett. 96
2006
Earlier work this paper cites.
S. Dodelson, A. Melchiorri and A. Slosar, Is cosmology compatible with sterile neutrinos? , Phys. Rev. Lett. 97
2006
Earlier work this paper cites.
S. Chang, L. J. Hall and N. Weiner, A Supersymmetric twin Higgs , Phys. Rev. D75
2007
Earlier work this paper cites.
A. Djouadi, The Anatomy of electro-weak symmetry breaking. I: The Higgs boson in the standard model , Phys. Rept. 457
2008
Earlier work this paper cites.
J. Lesgourgues and S. Pastor, Neutrino mass from Cosmology , Adv. High Energy Phys. 2012
Original
2012
Earlier work this paper cites.
C. Howlett, A. Lewis, A. Hall and A. Challinor, CMB power spectrum parameter degeneracies in the era of precision cosmology , jcap 4
Original
2012
Earlier work this paper cites.

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Topical Conveners: K.N. Abazajian, J.E. Carlstrom, A.T. Lee

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2016

Cosmological Signals of a Mirror Twin Higgs

Craig, Nathaniel, Koren, Seth, Trott, Timothy

Understand

We investigate the cosmology of the minimal model of neutral naturalness, the mirror Twin Higgs.

The softly-broken mirror symmetry relating the Standard Model to its twin counterpart leads to significant dark radiation in tension with BBN and CMB observations.
We quantify this tension and illustrate how it can be mitigated in several simple scenarios that alter the relative energy densities of the two sectors while respecting the softly-broken mirror symmetry.
In particular, we consider both the out-of-equilibrium decay of a new scalar as well as reheating in a toy model of twinned inflation, Twinflation.

Built on

D. C. Kelly, Collision Operator for a Relativistic Lorentz Gas , Phys. Fluids 12
1969
Earlier work this paper cites.
J. Silk and M. S. Turner, Double Inflation , Phys. Rev. D35
1987
Earlier work this paper cites.
E. W. Kolb and M. S. Turner, The Early Universe , Front. Phys. 69
1990
Earlier work this paper cites.
M. Drees and K.-i. Hikasa, Heavy Quark Thresholds in Higgs Physics , Phys. Rev. D41
1990
Earlier work this paper cites.
D. Polarski and A. A. Starobinsky, Spectra of perturbations produced by double inflation with an intermediate matter dominated stage , Nucl. Phys. B385
1992
Earlier work this paper cites.
S. Dodelson, E. Gates and A. Stebbins, Cold + hot dark matter and the cosmic microwave background , Astrophys. J. 467
1996
Earlier work this paper cites.
Z. G. Berezhiani, A. D. Dolgov and R. N. Mohapatra, Asymmetric inflationary reheating and the nature of mirror universe , Phys. Lett. B375
1996
Earlier work this paper cites.
J. Edsjo and P. Gondolo, Neutralino relic density including coannihilations , Phys. Rev. D56
1997
Earlier work this paper cites.
D. Wands, N. Bartolo, S. Matarrese and A. Riotto, An Observational test of two-field inflation , Phys. Rev. D66
2002
Earlier work this paper cites.
W. Hu and T. Okamoto, Principal power of the CMB , Phys. Rev. D69
2004
Earlier work this paper cites.
G. Mangano, G. Miele, S. Pastor, T. Pinto, O. Pisanti and P. D. Serpico, Relic neutrino decoupling including flavor oscillations , Nucl. Phys. B729
2005
Earlier work this paper cites.
Z. Chacko, H.-S. Goh and R. Harnik, The Twin Higgs: Natural electroweak breaking from mirror symmetry , Phys. Rev. Lett. 96
2006
Earlier work this paper cites.
S. Dodelson, A. Melchiorri and A. Slosar, Is cosmology compatible with sterile neutrinos? , Phys. Rev. Lett. 97
2006
Earlier work this paper cites.
S. Chang, L. J. Hall and N. Weiner, A Supersymmetric twin Higgs , Phys. Rev. D75
2007
Earlier work this paper cites.
A. Djouadi, The Anatomy of electro-weak symmetry breaking. I: The Higgs boson in the standard model , Phys. Rept. 457
2008
Earlier work this paper cites.
J. Lesgourgues and S. Pastor, Neutrino mass from Cosmology , Adv. High Energy Phys. 2012
Original
2012
Earlier work this paper cites.
C. Howlett, A. Lewis, A. Hall and A. Challinor, CMB power spectrum parameter degeneracies in the era of precision cosmology , jcap 4
Original
2012
Earlier work this paper cites.