Inclusive Decays with genr8 produce error

[imoewi01]

omegaeta_bkg_mc.input.txt

When trying to produce an omega eta sample with the attached genr8 config file, I get a fatal error message, shown below. Things work fine if I specify omega and eta decays explicitly.

BeamProperties: Using fixed polarization = 0
Reading: targetp.x targetp.y targetp.z targetMass
Found: 0.000000 0.000000 0.000000 0.938272
Reading: t-channelSlope
Found: 5.000000
Reading: number of particles need to describe the decay
Found: 4
Reading: part# chld1# chld2# prnt# Id nchld mass width chrg flag
Found: 0 -1 -1 -1 14 0 0.938272 0.000000 1 11
Found: 1 2 3 -1 0 2 2.000000 5.000000 0 0
Found: 2 2 3 1 33 0 0.782660 0.008680 0 11
Found: 3 2 3 1 17 0 0.547862 0.000000 0 11
Found EOI---- Input File appears Fine.
Error!: Isobar->mass <0 for Isobar with no children
Exit
Warning in UnknownClass::SetDisplay: DISPLAY not set, setting it to 129.57.52.52:0.0
Wrote 0 events to genr8_ETA1_TEST_050685_000.hddm

Something went wrong with genr8
status code: 255
ending gluex_MC.py

[edbarriga]

The error is caused by using a width for the omega. If the width were to be set to 0, the error does not trigger. Alternatively, you could keep the width of the omega by giving it two children with the flag 00