Many body effects close to the s-wave Feshbach resonance in two-component Fermi systems: Is a triplet superfluid possible?

We investigate the p-wave correlations at the BEC-BCS crossover in ultracold fermionic atom gases. We use a generalization of the $s$-wave approximation for the mean field properties of a multi-state fermionic Hamiltonian in the HFB framework. We explore the p-wave contributions to the ground state correlations, and the corresponding density and spin response functions. The simulations are carried out for a short-range attractive interaction, by keeping fixed the particle density number of the system, and varying the scattering of the interaction. The p-wave contributions are expected to be significant at large densities, and vanish in the dilute limit.