Scan with Single particles

As a variant of the single particle generator, it is also possible to send particles that have momentum, polar angle or athimuthal angle taken from a grid of points, rather than randomly distributed. To do so, add

-DSCAN

as the third argument to cresgvexe, and add the cards PMIN, PMAX (range in momentum), THMIN, THMAX (range in $\theta$) and PHMIN, PHMAX (range in $\phi$) into the steering file. Also select the kind of particle to generate by adding the card KPART, giving the PDG particle code. Only one of the variables can be scaned at a time. The variable choosen will then be taken in equal steps between the minimum and maximum value. The number of steps is simply the number of events sepcified by the MAXEV steering-card.

Further instructions on how to use this feature efficiently is given in the README in SGV_DIR/samples, where example steering files can also be found.