منابع مشابه
Geometric CP violation with extra dimensions.
We discuss how CP symmetry can be broken geometrically through orbifold projections in hidden extra dimensions in the context of brane-bulk models for particle unifications. The CP violation arises from a crash between the geometry of the compactification and the original higher dimensional CP definition. We present toy models to illustrate the idea and suggest ways to incorporate it into more ...
متن کاملSpontaneous CP Violation in Large Extra Dimensions
We show that in the context of large extra dimensions enough CP violation can be obtained from the spontaneous breaking in a simple non-SUSY model, which is usually considered not to cause the spontaneous CP violation. We estimate ǫK in our scenario to be of order 10 −3 consistent with the experimental value. We also propose a modification to the see-saw mechanism and axion scenario to match wi...
متن کاملSequestering CP Violation and GIM-Violation with Warped Extra Dimensions
We propose a model of spontaneous CP violation to address the strong CP problem in warped extra dimensions that relies on sequestering flavor and CP violation. We assume that brane-localized Higgs Yukawa interactions respect a U(3) flavor symmetry that is broken only by bulk fermion mass and Yukawa terms. All CP violation arises from the vev of a CP-odd scalar field localized in the bulk. To su...
متن کاملSplit Fermions in Extra Dimensions and CP Violation
We discuss CP violation in the quark sector within a novel approach to the Yukawa puzzle proposed by Arkani-Hamed and Schmaltz, where Yukawa hierarchies result from localising the Standard Model quark field wave-functions, at different positions (in the extra dimensions) in a “fat-brane.” We show that at least two extra dimensions are necessary in order to obtain sufficient CP violation, while ...
متن کاملTesting Cp Violation and Universal Extra Dimensions at Future Colliders
A 1 TeV linear ee collider with high luminosity and polarized beams is now a distinct possibility. If spin rotators can produce transversely polarized beams (TPB), providing two more vectors, they would make it possible to observe CP violation by observing a single final-state particle without measuring its spin. Two specific processes have been considered: a) ee → tt̄1,2 The four-Fermi Lagrangi...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2002
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100520100833