Spin-dependent macroscopic forces from new particle exchange

By B. Dobrescu, I. Mocioiu. 2006

215 citations recorded by the source corpus.

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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/31a20d28f2cb999727e23859b3e5e33e3c9157d1

Citations in the corpus

• The Dark Photon (2020, unknown): “(15) gives rise to a macroscopic spin-dependent (non-relativistic) potential (Dobrescu and Mocioiu, 2006): V (r) = −αDv 2daMd b M 4Λ4r3 [ σa ·σb− 3 (σa · r̂)(σb · r̂) ] , (63) where r = ra − rb is the vector distance and r = |r| and r̂ the corresponding unit vector.”