CP-violating ZZh Coupling at e+e- Linear Colliders

Details CP-violating ZZh Coupling at e+e- Linear Colliders CP-violating ZZh Coupling at e+e- Linear Colliders

2000-11-21

arxiv.org/abs/hep-ph/0011271v1

Phys.Rev. D63 (2001) 096007

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 10 ps figures, 1 table

Scientific paper

10.1103/PhysRevD.63.096007

We study the general Higgs-weak boson coupling with CP-violation via the process e+e- -> f \bar f h. We categorize the signal channels by sub-processes Zh production and ZZ fusion and construct four CP asymmetries by exploiting polarized e+e- beams. We find complementarity among the sub-processes and the asymmetries to probe the real and imaginary parts of the CP-violating form factor. Certain asymmetries with unpolarized beams can retain significant sensitivity to the coupling. We conclude that at a linear collider with high luminosity, the CP-odd ZZh coupling may be sensitively probed via measurements of the asymmetries.

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