Spin-Dependent Macroscopic Forces from New Particle Exchange

Details Spin-Dependent Macroscopic Forces from New Particle Exchange Spin-Dependent Macroscopic Forces from New Particle Exchange

2006-05-31

arxiv.org/abs/hep-ph/0605342v1

JHEP0611:005,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

37 pages

Scientific paper

10.1088/1126-6708/2006/11/005

Long-range forces between macroscopic objects are mediated by light particles that interact with the electrons or nucleons, and include spin-dependent static components as well as spin- and velocity-dependent components. We parametrize the long-range potential between two fermions assuming rotational invariance, and find 16 different components. Applying this result to electrically neutral objects, we show that the macroscopic potential depends on 72 measurable parameters. We then derive the potential induced by the exchange of a new gauge boson or spinless particle, and compare the limits set by measurements of macroscopic forces to the astrophysical limits on the couplings of these particles.

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