2004/04/30 by A. Martin, Adam Martin, Kenneth Lane
Physics and Astronomy · #CP violation #Coupling (piping) #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge group #Gauge theory #High-Energy Particle Collisions Research #Mixing (physics) #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Standard Model (mathematical formulation) #Technicolor #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.71.015011
published as Phys.Rev. D71 (2005) 015011 · 44 pages, Latex, with 14 postscript figures. Version that will appear in Physical Review D. Error in Delta M_B corrected, leading to increased lower bounds on Z' and coloron masses and modest changes in calculated sin(2 beta). A small error in Re(epsilon'/epsilon) was also corrected
arxiv created 2004/12/07 · openalex publication_date 2005/01/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Vacuum alignment in technicolor models provides an attractive origin for the quarks' CP violation and, possibly, a natural solution for the strong-CP problem of QCD. We discuss these topics in this paper. Then we apply them to determine plausible mixing matrices for left and right-handed quarks. These matrices determine the Cabibbo-Kobayashi-Maskawa matrix as well as new mixing angles and phases that are observable in extended technicolor (ETC) and topcolor (TC2) interactions. We determine the contributions of these new interactions to CP-violating and mixing observables in the K0, Bd and Bs systems. Consistency with mixing and CP violation in the K0 system requires assuming that ETC interactions are electroweak generation-conserving even if technicolor has a walking gauge coupling. Large ETC gauge boson masses and small intergenerational mixing then result in negligibly small ETC contributions to B-meson mixing and CP violation and to Re(ϵ^\ensuremath'/ϵ). We confirm our earlier strong lower bounds on TC2 gauge boson masses from Bd--Bd mixing. We then pay special attention to the possibility that current experiments indicate a deviation from standard model expectations of the values of sin2\ensuremathβ measured in Bd\ensuremath→J/\ensuremathψKS, \ensuremathφKS, \ensuremathη^\ensuremath'KS, and \ensuremathπKS, studying the ability of TC2 to account for these. We also determine the TC2 contribution to \ensuremathΔM_Bs and to Re(ϵ^\ensuremath'/ϵ), and find them to be appreciable.