MadGraph5_aMC@NLO

Madgraph

Asked by Fatima

Dear experts
I am working on the process e- mu+ > NN > mu- e+ pi+ pi-.
Neutrinos can be Dirac or Majorana to generate e- mu+ > NN > mu- e+ pi+ pi-.
Do I need to utilize two different packages? I have not come across FeynRules program capable of addressing flavor violations and heavy neutrinos. Initially, I used the following program:
 import model Seesaw_TypeI_UFO
generate e- mu+ > n1 n1 > mu- e+ pi+ pi-
outout <name>
launch
However, Madgraph does not define the pion meson. Additionally, I desire the neutrino masses to be set at 500 GeV.
Best regards.

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Solved by:
Olivier Mattelaer
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Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

I'm not aware if such model exists or not.
I would suggest to check FeynRules website and if it does not help maybe ask FeynRules authors.
Otherwise, you will need to implement it.

Cheers,

Olivier

Revision history for this message
Fatima (physiquefa) said : 		#2

Thank you for your help!

________________________________
De : <email address hidden> <email address hidden> de la part de Olivier Mattelaer <email address hidden>
Envoyé : 21 janvier 2024 22:00
À : Fatemeh Najafi <email address hidden>
Objet : Re: [Question #709059]: Madgraph

Your question #709059 on MadGraph5_aMC@NLO changed:
https://can01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fanswers.launchpad.net%2Fmg5amcnlo%2F%2Bquestion%2F709059&data=05%7C02%7Cfatemeh.najafi%40umontreal.ca%7C1b2d409b63f6413606d208dc1ab341d0%7Cd27eefec2a474be7981e0f8977fa31d8%7C1%7C0%7C638414604405343298%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=RSSF%2F3RVsbgLqMSz0e5f3KOw5xeXbRMuTzmUX5nhZog%3D&reserved=0<https://answers.launchpad.net/mg5amcnlo/+question/709059>

    Status: Open => Answered

Olivier Mattelaer proposed the following answer:
I'm not aware if such model exists or not.
I would suggest to check FeynRules website and if it does not help maybe ask FeynRules authors.
Otherwise, you will need to implement it.

Cheers,

Olivier

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Revision history for this message
Fatima (physiquefa) said : 		#3

Thanks Olivier Mattelaer, that solved my question.