ttZ in MadWeight

Asked by Kirill Skovpen

Hello,

I have the following error while trying to run ttZ process in MadWeight:

compile
compile P0_gg_ttxz_t_bwp_wp_mupvm_tx_bxwm_wm_mumvmx_z_vmvmx
Error detected in "launch "
write debug file MW5_debug
If you need help with this issue please contact us on https://answers.launchpad.net/madgraph5
MadGraph5Error : A compilation Error occurs when trying to compile /grid_mnt/opt__sbg__cms__ui5_data1/kskovpen/ttH/CMSSW_5_3_16_patch1/src/MEM/MG5_aMC_v2_1_1/ttZ_v1/SubProcesses/P0_gg_ttxz_t_bwp_wp_mupvm_tx_bxwm_wm_mumvmx_z_vmvmx.
 The compilation fails with the following output message:
     gfortran -O -w -fbounds-check -ffixed-line-length-132 -w -c -o driver.o driver.f
     data.inc:79.14:
         Included at driver.f:24:

             data (vis_nb(label,2),label=1,4) /3,4,6,7/
                   1
     Error: Data element above array upper bound at (1)
     make: *** [driver.o] Error 1

The proc_card has the following process specified:

import model sm-ckm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define l+ = e+ mu+
define l- = e- mu-
define ll = l+ l-
define vl = ve vm
define vl~ = ve~ vm~
define vv = vl vl~
define ww = w+ w-
define j = j b b~
define bb = b b~
generate p p > t t~ z, (t > b w+, w+ > l+ vl), (t~ > b~ w-, w- > l- vl~), (z > vl vl~)

I am using v2.1.1

Thanks for any help,

Kirill

Question information

Language:
English Edit question
Status:
Answered
For:
MadGraph5_aMC@NLO Edit question
Assignee:
Pierre Artoisenet Edit question
Last query:
Last reply:
Revision history for this message
Launchpad Janitor (janitor) said :
#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

Revision history for this message
Kirill Skovpen (kirill-skovpen) said :
#2

Just to mention that I was not able to find a way to make this process work in MadWeight. Maybe a stupid observation, but it seems like each time I have a particle decaying to invisible state MadWeight crashes.

Revision history for this message
Pierre Artoisenet (partois) said :
#3

Hi Kirill,

Indeed, MadWeight is not able to handle this case, namely because the Z is invisible and is not originating from the decay of a resonance. If this is not too urgent, I can work on a specific patch ...

Cheers,
Pierre

Revision history for this message
Kirill Skovpen (kirill-skovpen) said :
#4

Hi Pierre,

Thanks a lot. Yes, a dedicated patch for this problem would be very useful.

Thanks again,

Kirill

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