Matter and Antimatter in the Universe

Abstract

We review observational evidence for a matter-antimatter asymmetry in the early universe, which leads to the remnant matter density we observe today. We also discuss observational bounds on the presence of antimatter in the present day universe, including the possibility of a large lepton asymmetry in the cosmic neutrino background. We briefly review the theoretical framework within which baryogenesis, the dynamical generation of a matter-antimatter asymmetry, can occur. As an example, we discuss a testable minimal model that simultaneously explains the baryon asymmetry of the universe, neutrino oscillations and dark matter.

Invited contribution to the New Journal of Physics Focus Issue "Origin of Matter" (New J. Phys. 14 (2012) 095012); this version is identical to the published article up to a few updates in the references

References in corpus (21)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Observation of electron-antineutrino disappearance at Daya Bay
• Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
• The Primordial Lithium Problem
• How to find neutral leptons of the nuMSM?
• Sterile Neutrinos as the Origin of Dark and Baryonic Matter
• Cosmology seeking friendship with sterile neutrinos
• Quantum Boltzmann Equations and Leptogenesis
• Baryon Asymmetry of the Universe in the NuMSM
• Relic density of neutrinos with primordial asymmetries
• Constraining The Universal Lepton Asymmetry
• Cosmological lepton asymmetry with a nonzero mixing angle θ_{13}
• Medium corrections to the CP-violating parameter in leptogenesis
• The Sphaleron Rate through the Electroweak Cross-over
• Antimatter in the Milky Way
• Leptogenesis: The Other Cuts
• Coherent quantum Boltzmann equations from cQPA
• Quantum corrections to leptogenesis from the gradient expansion
• Primordial Nucleosynthesis: The Predicted and Observed Abundances and Their Consequences

Cited by in corpus (25)

• Sterile Neutrinos as the Origin of Dark and Baryonic Matter
• Experimental searches for the chiral magnetic effect in heavy-ion collisions
• Cosmological Phase Transitions and their Properties in the NMSSM
• CMB constraints on the inflaton couplings and reheating temperature in $\alpha$-attractor inflation
• Dark Matter in the minimal Inverse Seesaw mechanism
• Probing leptogenesis with GeV-scale sterile neutrinos at LHCb and BELLE II
• Lattice QCD determination of neutron-antineutron matrix elements with physical quark masses
• Systematic approach to thermal leptogenesis
• Mercury Monohalides: Suitability for Electron Electric Dipole Moment Searches
• Rigorous limits for hadronic and semi-leptonic CP-violating coupling constants from the electric dipole moment of ${}^{199}$Hg
• Improved limits on the hadronic and semi-hadronic CP violating parameters and role of a dark force carrier in the electric dipole moment of ${}^{199}$Hg
• Strong Washout Approximation to Resonant Leptogenesis
• Nearly degenerate heavy sterile neutrinos in cascade decay: mixing and oscillations
• On finite density effects on cosmic reheating and moduli decay and implications for Dark Matter production
• Space-time evolution of heavy sterile neutrinos in cascade decays
• Leptogenesis in crossing and runaway regimes
• The effects of the U${}_{\text{Y}}$(1) Chern-Simons term and its baryonic contribution on matter asymmetries and hypermagnetic fields
• A Relativistic Many-Body Analysis of the Electric Dipole Moment of ${}^{223}$Rn
• On the Minimal Mixing of Heavy Neutrinos
• Baryogenesis and Asymmetric Dark Matter from The Left-Right Mirror Symmetric Model
• Frequency domain method of the search for the deuteron electric dipole moment in a storage ring with imperfections
• Baryogenesis: A small review of the big picture
• Probing the Seesaw Mechanism and Leptogenesis with the International Linear Collider
• On some properties of Deuteron and Antideuteron production in high energy lead-lead collisions at 158A GeV
• How many new particles do we need after the Higgs boson?