Paired composite fermion phase of quantum hall bilayers at ν=1/2+1/2

We provide numerical evidence for composite fermion pairing in quantum Hall bilayer systems at filling nu=12+1/2 for intermediate spacing between the layers. We identify the phase as p(x)+ip(y) pairing, and construct high accuracy trial wave functions to describe the ground state on the sphere. For large distances between the layers, and for finite systems, a competing Hund's rule state, or composite fermion liquid, prevails for certain system sizes.