Exception: two different matrix-element have the same initial/final state
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
MadDM |
New
|
Medium
|
Unassigned |
Bug Description
Running the following:
define darkmatter chi1 chi1~
define coannihilator chi2 chi2~
define nnbsm = ne1 nm1 nt1 ne1~ nm1~ nt1~
define nu = ve vm vt ve~ vm~ vt~
define sm = nu g a u c t s b d u~ c~ t~ s~ b~ d~ z w+ w- h e- mu- ta- e+ mu+ ta+
generate relic_density
add indirect_detection nu nbsm, nbsm > sm sm sm
output try21
launch try21
set save_output all
set nevents 100000
set decay 1051 auto
set decay 1061 auto
set decay 1071 auto
set precise
indirect = flux_source
set indirect_
set pythia8_card 13:mayDecay True
set pythia8_card 13:onMode 1
set yph1ch1N1 3.512
set yph1ch1N2 0.916
set yph1ch2N1 0.0014
set yph1ch2N2 1.095
set UNe1 1e-4
set UNm1 1e-4
set UNt1 1e-4
set UNe2 4.456e-5
set UNm2 4.456e-5
set UNt2 4.456e-5
set MNe1 1
set MNm1 1
set MNt1 1
set Mchi1 0.6
set Mphi1 1.7
set MNe2 2.61
set MNm2 2.61
set MNt2 2.61
set MChi2 2.14
shower = Pythia8
results in this error:
Exception : two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True'.
Affects the lp:~maddm/maddm/decay_syntax branch
Hi, is there an update with a potential resolution?
Thanks,
Sanket