Equivalence principle and experimental tests of gravitational spin effects

Abstract

We study the possibility of experimental testing the manifestations of equivalence principle in spin-gravity interactions. We reconsider the earlier experimental data and get the first experimental bound on anomalous gravitomagnetic moment. The spin coupling to the Earth's rotation may also be explored at the extensions of neutron EDM and g-2 experiments. The spin coupling to the terrestrial gravity produces a considerable effect which may be discovered at the planned deuteron EDM experiment. The Earth's rotation should also be taken into account in optical experiments on a search for axionlike particles.

12 pages, version to appear in Physical Review D

References in corpus (3)

• Equation of spin motion in storage rings in a cylindrical coordinate system
• Comment on "An Improved Experimental Limit on the Electric-Dipole Moment of the Neutron," C.A.Baker et al [hep-ex/0602020]
• Equivalence Principle and Partition of Angular Momenta in the Nucleon

Cited by in corpus (5)

• Spin dynamics in gravitational fields of rotating bodies and the equivalence principle
• Generalized Parton Distributions and Description of Electromagnetic and Graviton form factors of nucleon
• Centrifugal quantum states of neutrons
• Dirac equations in curved space-time versus Papapetrou spinning particles
• Anomalous Fiber Optic Gyroscope Signals Observed above Spinning Rings at Low Temperature