TY - JOUR
T1 - Limits on exotic long-range spin-spin interactions of electrons
AU - Heckel, B. R.
AU - Terrano, W. A.
AU - Adelberger, E. G.
PY - 2013/10/10
Y1 - 2013/10/10
N2 - We surrounded a rotating torsion pendulum containing 9.8×1022 polarized electrons by 2 or 4 stationary sources, each with a net spin of 6.0×1024 polarized electrons. Multiple source configurations gave sensitivity to hypothetical dipole-dipole, spin-dot-spin, and spin-cross-spin exchange interactions mediated by bosons with masses up to 20 μeV. For bosons with masses ≤0.1 μeV our null results for the dipole-dipole, spin-dot-spin, and spin-cross-spin forces imply 1σ upper limits on (gPe)2/(âc), (gAe)2/(âc) and (gVegAe)/(âc) of 2.2×10-16, 3.8×10-40, and 1.2×10 -28, respectively. We also constrain, for the first time, any possible linear combination of static spin-spin interactions. In this case our upper limits relax to 5.6×10-16, 9.8×10-40, and 1.2×10-28, respectively.
AB - We surrounded a rotating torsion pendulum containing 9.8×1022 polarized electrons by 2 or 4 stationary sources, each with a net spin of 6.0×1024 polarized electrons. Multiple source configurations gave sensitivity to hypothetical dipole-dipole, spin-dot-spin, and spin-cross-spin exchange interactions mediated by bosons with masses up to 20 μeV. For bosons with masses ≤0.1 μeV our null results for the dipole-dipole, spin-dot-spin, and spin-cross-spin forces imply 1σ upper limits on (gPe)2/(âc), (gAe)2/(âc) and (gVegAe)/(âc) of 2.2×10-16, 3.8×10-40, and 1.2×10 -28, respectively. We also constrain, for the first time, any possible linear combination of static spin-spin interactions. In this case our upper limits relax to 5.6×10-16, 9.8×10-40, and 1.2×10-28, respectively.
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U2 - 10.1103/PhysRevLett.111.151802
DO - 10.1103/PhysRevLett.111.151802
M3 - Article
AN - SCOPUS:84885647261
SN - 0031-9007
VL - 111
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
M1 - 151802
ER -