# New CP-violation and preferred-frame tests with polarized electrons.

@article{Heckel2006NewCA, title={New CP-violation and preferred-frame tests with polarized electrons.}, author={Blayne Heckel and Claire E. Cramer and Ted Staton Cook and Eric George Adelberger and Stephan Schlamminger and Ulrich Schmidt}, journal={Physical review letters}, year={2006}, volume={97 2}, pages={ 021603 } }

We used a torsion pendulum containing approximately 9 x 10(22) polarized electrons to search for CP-violating interactions between the pendulum's electrons and unpolarized matter in the laboratory's surroundings or the Sun, and to test for preferred-frame effects that would precess the electrons about a direction fixed in inertial space. We find, /g(P)(e)g(S)(N)//(Planck's constant x c) < 1.7 x 10(-36), and /g(A)(e)g(V)(N)//(Planck's constant x c) < 4.8 x 10(-56) for lambda > 1 AU. Our…

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