The CKM Phase in Heterotic Orbifold Models

Details The CKM Phase in Heterotic Orbifold Models The CKM Phase in Heterotic Orbifold Models

2001-08-29

arxiv.org/abs/hep-th/0108218v1

Phys.Lett. B521 (2001) 71-78

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 3 figures

Scientific paper

10.1016/S0370-2693(01)01180-7

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 non-zero for some non-prime orbifolds. In particular, we study in detail the Z_6-I orbifold which allows for a non-trivial 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 Im T_i=\pm 1/2.

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