Long-range Electron Spin-spin Interactions from Unparticle Exchange

Details Long-range Electron Spin-spin Interactions from Unparticle Exchange Long-range Electron Spin-spin Interactions from Unparticle Exchange

2007-06-09

arxiv.org/abs/0706.1284v2

Phys.Rev.Lett.99:191804,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

v1: 10 pages, no figure, 1 table; v2: Proofread version for PRL. Main changes: (1) Shortened considerably to meet the length l

Scientific paper

10.1103/PhysRevLett.99.191804

Unparticles as suggested by Georgi are identities that are not constrained by dispersion relations but are governed by their scaling dimension, d. Their coupling to particles can result in macroscopic interactions between matter, that are generally an inverse nonintegral power of distance. This is totally different from known macroscopic forces. We use the precisely measured long-ranged spin-spin interaction of electrons to constrain unparticle couplings to the electron. For 1

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