  We have analyzed a fermionic infinite-ranged quantum Heisenberg spin glass
with BCS coupling in real space in the presence of a magnetic field. It has
been possible to locate the transition line between the normal paramagnetic
phase (NP) and the phase where there is a long range order corresponding to
pair formation in sites (PAIR). The nature of the transition line is also
investigated. This transition ends at Tf, the transition temperature between NP
and spin glass phase (SG) where the static approximation and replica symmetry
ansatz are reliable.
