To do physical cuts

To describe the cuts. The format of each line is

   {n,a,b0,b1},

where the "n" means the n-th cut condition, "a" is the variable visa which the cut is done, "b0" is the lower boundary of "a", "b1" is upper boundary of "a". "a" can one of the four predefined quantity or an ambitory expressions

The following is an example. To do the physics cut, the following part must be added to the input file "process.def".

The cut 1 is to do cut on the cos of the angle between p4 and z-axial with the lower boundary -0.96 and upper boundary 0.96.

The cut 2 is to do cut on the invariant mass of p3 and p4 with the lower boundary 0.1 GeV and upper boundary "infinite", where "infinite" means that to ask the FDC to find out the upper boundary of the whole range.

The cut 3 is to do cut on the transverse momentum of p3 with the lower boundary 5.0 GeV and upper boundary 15.0GeV.

The cut 4 is to do cut on the variable of expression $\sqrt{p(2,4)^2+p(3,4)^2}$ with the lower boundary 5.0 GeV and upper boundary 15.0GeV.

The cut n is to do cut on the variable of expression $0.5*dlog((p(1,4)+p(4,4))/(p(1,4)-p(4,4)))$ with the lower boundary -0.5 GeV and upper boundary 0.5 GeV