The CKM phase in heterotic orbifold models

2001/08/29 by Oleg Lebedev · 3 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories #hep-ph #hep-th

paper · pdf · doi:10.1016/s0370-2693(01)01180-7

published as Phys.Lett. B521 (2001) 71-78 · 12 pages, 3 figures

arxiv created 2001/08/29 · openalex publication_date 2001/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/02

Abstract

We consider properties of the CKM phase in the heterotic orbifold models. We find that at the renormalizable level the CKM phase vanishes identically for the prime orbifolds, whereas it can be nonzero for some nonprime orbifolds. In particular, we study in detail the Z6-I orbifold which allows for a nontrivial CKM phase and analyze the modular properties of the corresponding Jarlskog invariant. The CKM phase is shown to vanish if the moduli fields are stabilized at ImTi=±1/2.

Citations

• QUARK MASS MATRICES IN SUPERSTRING MODELS
• Commutator of the Quark Mass Matrices in the Standard Electroweak Model and a Measure of MaximalCPNonconservation

Cited by

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• Heterotic Yukawa couplings and continuous Wilson lines
• Modular invariance faces precision neutrino data