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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References

Astronomical Algorithms
TLDR
This book intends to be a guide for the (professional or amateur) astronomer who wants to do calculations, although a few astronomy oriented mathematical techniques are dealt with, such as interpolation, fitting curves, and sorting data.