GEODESIC AND PATH MOTION IN THE NONSYMMETRIC GRAVITATIONAL THEORY

Citation
J. Legare et Jw. Moffat, GEODESIC AND PATH MOTION IN THE NONSYMMETRIC GRAVITATIONAL THEORY, General relativity and gravitation, 28(10), 1996, pp. 1221-1249
Citations number
44
Categorie Soggetti
Physics
ISSN journal
00017701
Volume
28
Issue
10
Year of publication
1996
Pages
1221 - 1249
Database
ISI
SICI code
0001-7701(1996)28:10<1221:GAPMIT>2.0.ZU;2-3
Abstract
We study the problem of test-particle motion in the Nonsymmetric Gravi tational Theory (NGT) assuming the four-velocity of the particle is pa rallel-transported along the trajectory. The predicted motion is studi ed on a static, spherically symmetric background field, with particula r attention paid to radial and circular motions. Interestingly, it is found that the proper time taken to travel between any two non-zero ra dial positions is finite. It is also found that circular orbits can be supported at lower radii than in General Relativity for certain forms of motion. We present three interactions which could be used as alter nate methods for coupling a test-particle to the antisymmetric compone nts of the NGT field. One of these takes the form of a Yukawa force in the weak-field limit of a static, spherically symmetric field, which could lead to interesting phenomenology.