A Common Origin for all CP Violations

Details A Common Origin for all CP Violations A Common Origin for all CP Violations

2003-07-08

arxiv.org/abs/hep-ph/0307119v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, no figures, uses revtex4

Scientific paper

We put forward the conjecture that all CP violating phenomena may have a common origin. In order to illustrate our idea, we present a minimal model where CP is spontaneously broken at a high energy scale, through the phase in the vacuum expectation value of a complex scalar singlet. This single phase is the origin of both low energy CP violation in the quark and leptonic sectors, as well as leptogenesis. We also show that in this framework the strong CP problem may be solved in a simple way through the introduction of a Z_4 symmetry which allows for the implementation of the Nelson-Barr mechanism.

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