GALILEAN SUPERCONFORMAL ALGEBRAS WITH CENTRAL EXTENSION AND THEIR REALIZATIONS
The Galilean conformal algebra (GCA) is a class of non-semisimple Lie algebra specified by spin ℓ and dimension of space d. We investigate N = 2 supersymmetric extensions of GCA and introduce a novel super-GCA for d = 2 but arbitrary ℓ We also give a realization of the novel superalgebra in terms of bosons and fermions.