WHIZARD does not re-generate grids when sqrts is changed

[Juergen Reuter]

but takes the setup before. Is this a bug or a feature??? Should not be the standard. Maybe sqrts can be made part of the PS file!?

[kilian]

JR: Could you provide an example? I can't reproduce this.

[Juergen Reuter]

There you go:

model = SM

process eemm = e1, E1 => e2, E2

compile

sqrts = 500 GeV
beams = e1, E1

integrate (eemm)

Run WHIZARD, then set sqrts = 5000 GeV and rerun, and you will get the same result. Probably it only happens when the beams command is set!?

[kilian]

Sorry, doing exactly as you describe produces two different results, with grids properly regenerated:

| Initializating integration for process eemm:
| Rebuilding phase space (phase-space parameters have changed)
| Generating phase space configuration ...
| ... done.
| ... found 2 phase space channels, collected in 2 groves.
| Phase space: found 2 equivalences between channels.
| Wrote phase-space configuration file 'eemm.phs'.
| iterations = 3:1000, 3:10000
Warning: No cuts have been defined.
| Reading integration grids and results from file 'eemm.vg':
| Phase-space setup has changed, discarding old grid file

So what?

[Juergen Reuter]

I wear my sun glasses at night. Maybe that's why I didn't see that 4.24xxxx+02 and 4.24xxxx+00 are NOT identical numbers. Mea culpa.