We have perturbatively evaluated the dynamics of the gauge field seen
in finite-size studies of quasiparticle interactions in the 3-d chiral
spin liquid [2]. The calculated dynamics agree with the near-field be
havior of the gauge field seen in the previous numerical work. However
, the far-field behavior of a quasiparticle's magnetic field configura
tion is found to be dipolar, rather than monopolar as previously claim
ed. We also identify a new non-rotationally invariant 3-d term in the
gauge field's effective lagrangian and ascribe the observed behavior t
o this term.