Test of the equivalence principle using a rotating torsion balance.

@article{Schlamminger2007TestOT,
  title={Test of the equivalence principle using a rotating torsion balance.},
  author={Stephan Schlamminger and K-Y Choi and T. A. Wagner and Jens H Gundlach and Eric George Adelberger},
  journal={Physical review letters},
  year={2007},
  volume={100 4},
  pages={
          041101
        }
}
We used a continuously rotating torsion balance instrument to measure the acceleration difference of beryllium and titanium test bodies towards sources at a variety of distances. Our result Deltaa(N),(Be-Ti)=(0.6+/-3.1)x10(-15) m/s2 improves limits on equivalence-principle violations with ranges from 1 m to infinity by an order of magnitude. The Eötvös parameter is eta(Earth,Be-Ti)=(0.3+/-1.8)x10(-13). By analyzing our data for accelerations towards the center of the Milky Way we find equal… 

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References

SHOWING 1-10 OF 23 REFERENCES

Theory and Experiment in Gravitational Physics

New technological advances have made it feasible to conduct measurements with precision levels which are suitable for experimental tests of the theory of general relativity. This book has been

Phys

  • Earth. Planet. Inter. 25, 297
  • 1981

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2004

Phys. Earth Planet. Inter

  • Phys. Earth Planet. Inter
  • 1981

Phys

  • Rev. Lett. 93, 261101
  • 2004

Phys

  • Rev. D 42, 3267
  • 1990

[6] Professional Instruments Company

  • [6] Professional Instruments Company

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 1999

Phys. Rev. D

  • Phys. Rev. D
  • 1999

Phys

  • Rev. D 50, 3614
  • 1994