New Experimental Limits on Macroscopic Forces Below 100 Microns
Abstract
Results of an experimental search for new macroscopic forces with Yukawa range between 5 and 500 microns are presented. The experiment uses 1 kHz mechanical oscillators as test masses with a stiff conducting shield between them to suppress backgrounds. No signal is observed above the instrumental thermal noise after 22 hours of integration time. These results provide the strongest limits to date between 10 and 100 microns, improving on previous limits by as much as three orders of magnitude. We rule out half of the remaining parameter space for moduli force predictions by Dimopolous and Giudice, and new bounds are set on the mass of the string dilaton and on the radion modulus of Chacko and Perazzi.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- April 2003
- Bibcode:
- 2003APS..APR.F2005V