Phys. Rev. Lett. 96, 163001 (2006) [4 pages]Experimental Constraints on Polarizability Corrections to Hydrogen Hyperfine StructureReceived 21 December 2005; published 24 April 2006 We present a state-of-the-art evaluation of the polarizability corrections—the inelastic nucleon corrections—to the hydrogen ground-state hyperfine splitting using analytic fits to the most recent data. We find a value Δpol=1.3±0.3 ppm. This is 1–2 ppm smaller than the value of Δpol deduced using hyperfine splitting data and elastic nucleon corrections obtained from modern form factor fits. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.163001
DOI:
10.1103/PhysRevLett.96.163001
PACS:
31.30.Gs, 13.40.Gp, 13.88.+e, 14.20.Dh
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