Using Earth to Search for Long-Range Spin-Velocity Interactions

Abstract

Precision measurements of the possible coupling of spin to other scalars, vectors and pseudovectors has proven to be a sensitive way to search for new particle physics beyond the standard model. Indeed, in addition to searching for exotic spin-spin interactions, studies have been undertaken to look for couplings of spin to gravity, the relative velocity between particles, and preferred directions. Several laboratory experiments have established upper bounds on the energy associated with various fermion spin-orientations relative to Earth. Here, we combine these results with a model of Earth in order to investigate the possible long-range spin-velocity interactions associated with the exchange of ultralight ($m_{z^{\prime }}<1$ neV) or massless scalar or vector bosons. We establish stringent bounds on the strength of these couplings between electrons, neutrons, protons and nucleons.

6 pages, 1 figure, 1 table

References in corpus (9)

• Stellar cooling bounds on new light particles: plasma mixing effects
• Spin-Dependent Macroscopic Forces from New Particle Exchange
• Preferred-Frame and CP-Violation Tests with Polarized Electrons
• The Elemental Abundances (with Uncertainties) of the Most Earth-like Planet
• New Constraints on Exotic Spin-Velocity-Dependent Interactions
• Constraints on long-range spin-gravity and monopole-dipole couplings of the proton
• Probing low-mass vector bosons with parity nonconservation and nuclear anapole moment measurements in atoms and molecules
• Search for spin-dependent gravitational interactions at the Earth range
• Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor

Cited by in corpus (6)

• Spin-dependent exotic interactions
• Searches for exotic spin-dependent interactions with spin sensors
• Improved limits on the spin- and velocity-dependent exotic interaction in the micrometer range
• Potential of constraining the Fifth Force Using the Earth as a Spin and Mass Source from space
• Limits on the Carroll-Field-Jackiw electrodynamics from geomagnetic data
• Testing the Fifth Force on Lepton Spins through Neutrino Oscillations