Experimental tests of curvature couplings of fermions in general relativity
Jan, 2002
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Abstract:
Spin 1/2 particles in geodesic trajectories experience no gravitational potential but they still have non-zero couplings to the curvature tensor. The effect of space time curvature on fermions can be parameterized by a vector and a pseudo-vector potential. These apparent CPT violating terms can be measured with satellite based spin-polarized torsion balance and clock comparison experiments. The Earth's curvature effect is of the order of 10^{-37} Gev which is not far from the present bounds of ~10^{-29} Gev on such CPT violating couplings.- 04.80.Cc
- 11.30.Er
- general relativity
- fermion: coupling
- validity test
- space-time: effect
- violation: CPT
- counters and detectors: satellite
- proposed experiment
- numerical calculations
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