6533b7d0fe1ef96bd125b9b1
RESEARCH PRODUCT
A solution to the strong CP problem transforming the theta angle to the KM CP-violating phase
Sheung Tsun TsouJosé BordesHong-mo Chansubject
QuarkPhysicsQuantum chromodynamicsHigh Energy Physics - TheoryNuclear and High Energy PhysicsParticle physicsCabibbo–Kobayashi–Maskawa matrixHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaAstronomy and AstrophysicsFermionAtomic and Molecular Physics and OpticsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics - Theory (hep-th)CP violationStrong CP problemInvariant (mathematics)Mixing (physics)description
It is shown that in the scheme with a rotating fermion mass matrix (i.e. one with a scale-dependent orientation in generation space) suggested earlier for explaining fermion mixing and mass hierarchy, the theta angle term in the QCD action of topological origin can be eliminated by chiral transformations, while giving still nonzero masses to all quarks. Instead, the effects of such transformations get transmitted by the rotation to the CKM matrix as the KM phase giving, for theta of order unity, a Jarlskog invariant typically of order 10(-5), as experimentally observed. Strong and weak CP violations appear then as just two facets of the same phenomenon.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-02-18 |