Index for three dimensional superconformal field theories with general   R-charge assignments
  We derive a general formula of an index for three dimensional N=2 superconformal field theories with general R-charge assignments to chiral multiplets by using the localization method in S^2xS^1 background. As examples we compute the index for theories in a few mirror pairs, and confirm the agreement of the indices in each mirror pair. 
Yosuke Imamura and Shuichi Yokoyama
hep-th