Source of CP Violation for Baryon Asymmetry of the Universe

Abstract

The baryon asymmetry of the Universe requires CP violation, but the Standard Model falls short by a factor of $10^{-10}$ or more. Starting from a clue at the $B$ factories, we point out that the large Yukawa couplings of the sequential fourth generation $t^{\prime }$ and $b^{\prime }$ quarks can provide enhancement by a factor of over $10^{13}$, making the 2-3-4 generation quark sector a viable source of CP violation for the baryon asymmetry of the Universe. With recent hints of large $\sin 2{\Phi }_{B_s}$ in $B_s^0$-${\bar{B}}_s^0$ mixing from the Tevatron, the ultimate test would be to discover the $t^{\prime }$ and $b^{\prime }$ quarks at the Large Hadron Collider.

arXiv comment4 pages, 2 figures, style change and other revisions; version rejected by PRL

Cited by in corpus (34)

• Observation of $CP$ violation in charm decays
• Four Statements about the Fourth Generation
• First observation of CP violation in the decays of Bs mesons
• Sealing the fate of a fourth generation of fermions
• Dark Matter as the Trigger of Strong Electroweak Phase Transition
• Search for heavy bottom-like quarks in 4.9 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV
• Analysis of events with $b$-jets and a pair of leptons of the same charge in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at sqrt(s) = 7 TeV
• Source of CP Violation for the Baryon Asymmetry of the Universe
• Renormalization Group Fixed Point with a Fourth Generation: Higgs-induced Bound States and Condensates
• First evidence of direct CP violation in charmless two-body decays of Bs mesons
• 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
• The CKM Parameters
• Dynamical Electroweak Symmetry Breaking with a Heavy Fourth Generation
• 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
• Invariants and Flavour in the General Two-Higgs Doublet Model
• Four Generations: SUSY and SUSY Breaking
• Collider signals of a composite Higgs in the Standard Model with four generations
• Search for the Anomalous Interactions of Up-Type Heavy Quarks in $\gamma \gamma$ Collision at the LHC
• Neutrino dark matter candidate in fourth generation scenarios
• On the nature of the fourth generation neutrino and its implications
• The Need for New Search Strategies for Fourth Generation Quarks at the LHC
• Complementarity of Semileptonic $B$ to $K_2^{\ast }(1430)$ and $K^{\ast }(892)$ Decays in the Standard Model with Fourth Generation
• Neutrino Masses and a Fourth Generation of Fermions
• Top-Antitop-Quark Production and Decay Properties at the Tevatron
• Detecting Fourth Generation Quarks at Hadron Colliders
• Higgs Properties in the Fourth Generation MSSM: Boosted Signals Over the 3G Plan
• Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+
• Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
• Bounds on fourth generation induced Lepton Flavour Violating double insertions in Supersymmetry
• Z'-> ggg decay in left-right symmetric models with three and four fermion families
• Ultra-heavy Yukawa-bound states of 4th Generation at LHC