Source of CP Violation for the Baryon Asymmetry of the Universe

Abstract

We give a description of why the existence of a fourth generation is likely to provide enough CP violation for baryogenesis, and trace how this observation came about. We survey the current experimental and theoretical pursuits and outline a research agenda, touching upon unitarity violation and very heavy chiral quarks, and comment on how the electroweak phase transition picture might be altered.

arXiv commentInvited talk presented at 2nd International Workshop on Dark Matter, Dark Energy and Matter-antimatter Asymmetry, Hsinchu, Taiwan, November 5-6, 2010

References in corpus (15)

• Is There a Hot Electroweak Phase Transition at $m_H\gsim m_W$?
• Four Generations and Higgs Physics
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• Evidence for an anomalous like-sign dimuon charge asymmetry
• Evidence for Direct CP Violation in B0 -> K+- pi-+ Decays
• Precision Constraints on Extra Fermion Generations
• Difference in B^+ and B^0 Direct CP Asymmetry as Effect of a Fourth Generation
• Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar Mass Difference in Four Generation Standard Mode
• Search for Fermion-Pair Decays $Q\Qbar \to (\t\Wmp)(\tbar\Wpm)$ in Same-Charge Dilepton Events
• Four Generations, the Electroweak Phase Transition, and Supersymmetry
• Fourth Generation CP Violation Effect on B -> K pi, phi K and rho K in NLO PQCD
• Flavor and CP Violation with Fourth Generations Revisited
• Source of CP Violation for Baryon Asymmetry of the Universe
• Remarks on the $A_{SL}^s$ and $\Delta {\Gamma }_s$ Studies at the Tevatron and Beyond
• Probing New Physics in $B_s$ and $D$ mixings, and $A_{\mathrm{CP}}(B^{+}\to J/\psi K^{+})$

Cited by in corpus (47)

• Observation of $CP$ violation in charm decays
• Evidence for an anomalous like-sign dimuon charge asymmetry
• Less space for a new family of fermions
• How much space is left for a new family?
• Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at sqrt(s) = 7 TeV
• Renormalization Group Fixed Point with a Fourth Generation: Higgs-induced Bound States and Condensates
• Test of CP invariance in vector-boson fusion production of the Higgs boson in the $H\to \tau \tau$ channel in proton$-$proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Rare Decays and CP Violation in the $B_s$ System
• The CKM Parameters
• Two Higgs doublets with 4th generation fermions - models for TeV-scale compositeness
• Search for pair production of a new quark that decays to a Z boson and a bottom quark with the ATLAS detector
• Search for a Heavy Bottom-like Quark in pp Collisions at sqrt(s) = 7 TeV
• Flavour Theory: 2009
• A fourth generation, anomalous like-sign dimuon charge asymmetry and the LHC
• Higgs Boson Production via Gluon Fusion in the Standard Model with four Generations
• CP violation and the 4th generation
• Invariants and Flavour in the General Two-Higgs Doublet Model
• Collider signals of a composite Higgs in the Standard Model with four generations
• The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
• Extended Friedberg Lee hidden symmetries, quark masses and CP-violation with four generations
• Probing the fourth generation Majorana neutrino dark matter
• Possible Discovery Channel for New Charged Leptons at the LHC
• On the nature of the fourth generation neutrino and its implications
• Electroweak Baryogenesis in a Scalar-Assisted Vector-Like Fermion Model
• The Need for New Search Strategies for Fourth Generation Quarks at the LHC
• Fourth Generation Leptons and Muon $g-2$
• Search for TeV Scale Physics in Heavy Flavour Decays
• Top-Antitop-Quark Production and Decay Properties at the Tevatron
• Large-scale asymmetry in the distribution of galaxy spin directions -- analysis and reproduction
• Higgs Properties in the Fourth Generation MSSM: Boosted Signals Over the 3G Plan
• Search for New Physics in the B0s mixing phase at CDF
• Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
• B-physics results from Tevatron
• A variant two-Higgs doublet model with a new Abelian gauge symmetry
• Study of the Higgs-Yukawa theory in the strong-Yukawa coupling regime
• Analysis of Various Polarization Asymmetries In The Inclusive $b\to s{\ell }^{+}{\ell }^{-}$ Decay In The Fourth-Generation Standard Model
• Theoretical Review on CP Violation in Rare B decays
• Exotic Searches at LHC and Tevatron
• Observation of CP violation in charm decays at LHCb
• A generalized Higgs potential with two degenerate minima for a dark QCD matter scenario
• A Fourth Neutrino and its Consequences on CP Asymmetries
• Ultra-heavy Yukawa-bound states of 4th Generation at LHC
• Status of CP Violation
• A Fourth Chiral Generation And Susy Breaking
• Highlights of Flavour Violation in the Presence of a 4th Generation
• Heavy Quarks, Origin of Mass, and CP Violation for Universe
• CP Violation in B^0_s Mesons