Start an optimization. Possible variables that can be optimized:
--------------------------+----------------------------------------------
spec_e.dp_kin | Relative momentum after correction for
| aberations and kinematic broadening.
spec_e.th_tg/spec_e.ph_tg | Reconstructed theta and phi target coordinate
| of the electron spectrometer.
spec_h.th_tg/spec_h.ph_tg | Reconstructed theta and phi target coordinate
| of the hadron spectrometer.
spec_e.y_tg | Reconstructed y target coordinate of the
| the electron spectrometer.
spec_h.y_tg | Reconstructed y target coordinate of the
| the hadron spectrometer.
tc_cor | Coincidence time between e and h spectrometer
| after correction for time-of-flight and paddle
! offsets.
e_miss | Missing energy.
e_miss/p_miss | Missing energy and momentum for H(e,e'p).
--------------------------+----------------------------------------------
A LOGICAL condition can be specified for selection of the data to be used in the optimization.