  Motivated by recent experiments, we investigate the excitation energy of a
proximitized Rashba wire in the presence of a position dependent pairing. In
particular, we focus on the spectroscopic pattern produced by the overlap
between two Majorana bound states that appear for values of the Zeeman field
smaller than the value necessary for reaching the bulk topological
superconducting phase. The two Majorana bound states can arise because locally
the wire is in the topological regime. We find three parameter ranges with
different spectral properties: crossings, anticrossings and asymptotic
reduction of the energy as a function of the applied Zeeman field.
Interestingly, all these cases have already been observed experimentally.
Moreover, since an increment of the magnetic field implies the increase of the
distance between the Majorana bound states, the amplitude of the energy
oscillations, when present, gets reduced. The existence of the different
Majorana scenarios crucially relies on the fact that the two Majorana bound
states have distinct $k$-space structures. We develop analytical models that
clearly explain the microscopic origin of the predicted behavior.
