!B production: 1800 GeV pbar on p
file_lpt herwig_exam.lpt   !Output file
file_evt_wrt herwig_exam.evt   !Output event file
file_hbk     herwig_exam.rz    !Hbook output
maxev 1000                 !Max events to generate
maxpr 2                    !Max number of events to print
ranseed  0 0               !Random seed set to time of day
iproc 1705                 !bbar quark production
part1 P                    !Particle 1 ==> Proton
part2 PBAR                 !Particle 2 ==> Antiproton
pbeam1 900.                !Beam energy for proton
pbeam2 900.
ptmin 0.                   !Pt range
ptmax 900.