SHORT-RANGE TEST OF THE EQUIVALENCE PRINCIPLE

Authors
GUNDLACH JH SMITH GL ADELBERGER EG HECKEL BR SWANSON HE
Citation
Jh. Gundlach et al., SHORT-RANGE TEST OF THE EQUIVALENCE PRINCIPLE, Physical review letters, 78(13), 1997, pp. 2523-2526
Citations number
10
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
13
Year of publication
1997
Pages
2523 - 2526
Database
ISI
SICI code
0031-9007(1997)78:13<2523:STOTEP>2.0.ZU;2-Z
Abstract
We rotated a 3 ton U-238 attractor around a compact torsion balance an d compared the accelerations of Cu and Pb toward U. We found that a(Cu ) - a(Pb) = (-0.7 +/- 5.7) x 10(-13) cm/s(2), compared to the equivale nce-principle violating interactions with Yukawa ranges down to 1 cm a nd rule out an earlier suggestion of a Yukawa interaction coupled pred ominantly to N - Z.