High Energy Physics - Phenomenology
[Submitted on 11 Mar 2014
(v1)
, last revised 11 Jun 2014 (this version, v3)]
Title: CP violation from pure gauge in extra dimensions
Title: 额外维中的纯规范导致的CP破坏
Abstract: One of the Sakharov's condition for baryogenesis is the violation of both C and CP. In the Standard Model, gauge interactions break maximally C, but CP is only broken through the Yukawa couplings in the poorly understood scalar sector. In extra-dimensional models, extra components of gauge fields behave as scalars in 4D and can acquire effective vev's through (finite) quantum effects (Hosotani mechanism). This mechanism is used to build a toy model with 2 extra-dimensions compactified on a flat torus $T^2$, where a SU(2) gauge symmetry is broken to U(1) and CP violation (in 4D) is expected. This is verified by computing a non-vanishing electric dipole moment.
Submission history
From: Simon Mollet [view email][v1] Tue, 11 Mar 2014 10:05:00 UTC (1,084 KB)
[v2] Mon, 19 May 2014 15:05:33 UTC (1,084 KB)
[v3] Wed, 11 Jun 2014 13:41:37 UTC (1,083 KB)
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