pith. machine review for the scientific record. sign in

arxiv: 0712.0607 · v1 · submitted 2007-12-04 · 🌀 gr-qc

Recognition: unknown

Test of the Equivalence Principle Using a Rotating Torsion Balance

S. Schlamminger , K.-Y. Choi , T. A. Wagner , J. H. Gundlach , E. G. Adelberger
Authors on Pith no claims yet
classification 🌀 gr-qc
keywords towardsaccelerationsbalancerotatingtesttorsionaccelerationanalyzing
0
0 comments X
read the original abstract

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 Delta a=(0.6+/-3.1)x10^-15 m/s^2 improves limits on equivalence-principle violations with ranges from 1 m to infinity by an order of magnitude. The Eoetvoes parameter is eta=(0.3+/-1.8)x10^-13. By analyzing our data for accelerations towards the center of the Milky Way we find equal attractions of Be and Ti towards galactic dark matter, yielding eta=(-4 +/- 7)x10^-5. Space-fixed differential accelerations in any direction are limited to less than 8.8x10^-15 m/s^2 with 95% confidence.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Self-Interaction Bounds on Ultralight Dark Matter Couplings to Matter

    hep-ph 2026-05 unverdicted novelty 5.0

    Self-interaction bounds from cosmology constrain ultralight dark matter couplings to neutrinos, electrons, and light quarks via unavoidable quantum loop corrections.

  2. Constraining Ultralight Scalar Dark Matter in the Galactic Center with the S2 Orbit

    hep-ph 2026-04 unverdicted novelty 5.0

    Using S2 star periastron precession, the work constrains ultralight scalar dark matter mass ratios to below 10^{-3} or 1 and improves quadratic coupling bounds for masses 10^{-20} to 10^{-18} eV.

  3. Naturally Light Distortion

    gr-qc 2026-03 unverdicted novelty 5.0

    A naturally light scalar-like distortion field emerges in generalized gravity and mixes with the Higgs boson.

  4. Testing General Relativity with Present and Future Astrophysical Observations

    gr-qc 2015-01 accept novelty 2.0

    A review summarizing modified theories of gravity, their effects on compact objects, existing bounds from astrophysical observations, and the promise of future gravitational wave tests for strong-field gravity.