Minimum energy cut for jets is not in the lab frame but in the CM frame

Bug #1287275 reported by Junya NAKAMURA
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MadGraph5_aMC@NLO
Fix Released
Undecided
Olivier Mattelaer

Bug Description

Dear Madteam,

The mimimum energy cut for jets in the lab frame that we can specify in run_card.dat is not working as expected, and I have confirmed that the cut applies the energy of jets not in the lab frame but in the center-of-mass frame.

Best regards,

Junya

Related branches

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) wrote :

Is this for a NLO process?

I expect that so I assign for the moment marco on this.

Cheers,

Olivier

Changed in mg5amcnlo:
assignee: nobody → marco zaro (marco-zaro)
Revision history for this message
Junya NAKAMURA (junnaka) wrote :

Hi Olivier,

No, this is for a LO process.

Best regards,

Junya

Changed in mg5amcnlo:
assignee: marco zaro (marco-zaro) → Olivier Mattelaer (olivier-mattelaer)
Revision history for this message
Olivier Mattelaer (olivier-mattelaer) wrote :

Hi Junya,

I indeed suceed to confirm your disturbing result. But I still need to investigate more on this.

Cheers,

Olivier

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) wrote :

Hi Junya,

We decide to not change the way the cut are done, but we are going to change the comment to make them in agreement with the status of the code. Since this cut is only usefull for case the situation between the rest-frame and lab-frame are either know or ( most of the time) identical, this should be fine.

Cheers and thanks again.

Olivier

Changed in mg5amcnlo:
status: New → Fix Committed
Changed in mg5amcnlo:
status: Fix Committed → Fix Released
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