The header file contains information which is needed during the scan to construct some of the variables. At the end of the scan this information is added to each histogram which is saved. This way it is available to the next programs in the analysis chain.
At the moment the header file should contain at least the following information, otherwise an error message will appear:
database c db2901_2.prm e0 r 1 495.00 particle_a c lepton spece r 5 10.0545 65.390 0.0 0.10 0.07 particle_b c none spech r 5 10.0545 -65.390 0.0 0.02 0.07 target r 5 90.0 1.86 2 1 1 tar_angle r 1 30.0 isotope1_name c 12C isotope1 r 3 0.989 12.000 6 isotope2_name c 13C isotope2 r 3 0.011 13.003 6
The order of the lines is not important. They are built up in the following
way. The first string indicates the name of the item. It is followed by a
character which should be either c which stands for string or
r which indicates that REAL's will follow. The next number gives
the number of fields if REAL's follow. Finally, the values of the item
should be given.
Table 6 gives the description of each item
Table: Description of header file items