MadGraph5_aMC@NLO

problem with Madspin

Asked by Zhaowei Song

I'm launching g g > z z with sm and encountered a problem while launching Madspin.
INFO: generating the production square matrix element
INFO: generate g g > z z/h [sqrvirt=QCD] ;
Command "generate_events run_01" interrupted with error:
InvalidCmd : not supported format standalone_msP
quit
INFO: storing files of previous run
gzipping output file: unweighted_events.lhe
INFO: Done
INFO:
more information in /home/parallels/Downloads/MG5_aMC_v3.4.0.RC2/MG5_aMC_v3_4_0_RC2/background_gghh/index.html

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

Since you are doing loop-induced production, madspin is not fully supported (see the loop-induced paper)
The only mode available is spinmode=none which is quite bad for "Z" decay (no spin correlation)

Cheers,

Olivier

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