PT2 - Equivalence Principle Tests |
Speaker_ |
Kolosnitsyn, Nikolai |
Co-autors |
V.N. Melnikov |
Talk _ |
On Project of Laboratory Experiment to Test New Forces |
Abstract _ |
Experiment on possible detection of new forces, or test of the inverse square law, parameterized by Yukawa-type potential is discussed. The installation comprise a ball with a spherical cavity whose center is shifted with respect to the ball center. The ball is placed on a turn-table being rotated uniformly. Torsion balance as a sensi- tive element is inside the cavity. Uniform gravitational field created inside the ball do not influence the balance, but any non-gravitational forces create a torque, which acts periodically during the rotation of the ball. The spectrum of harmonics is calculated. We use the first harmonic in the measurements. Sensitivity of the method is evaluated. It is shown that the sensitivity may be on the level of alpha ~ 10^{-10} in the range of lambda ~ 0.1-10^{7} m in the space of parameters(alpha, lambda). |