Temperature Width and Spin Structure of Superfluid 3He-A1 in Aerogel

The influence of spin-exchange scattering centers on the triplet Cooper pairing is considered to explore the behavior of superfluid 3He in high porosity aerogel containing 3He atoms localized at the surface of silica strands. The homogeneously located and isotropically scattering system of spin-polarized ``impurity'' centers is adopted as a simple model to investigate the contribution of spin-exchange scattering chanel for quasiparticles to the formation of non-unitary superfluid A1-phase in aerogel environment. It is demonstrated that an interference between the potential and exchange parts of quasiparticle scattering against spin-polarized ``impurity'' centers can change considerably the temperature width and the spin structure of A_{1}-phase in aerogel.