" Raise Error "

Asked by Saurabh Niyogi on 2012-03-22

Hi,

We are trying to implement a scenario with flat TeV-sized extra dimensions having some non-universal parameters in MadGraph-5_v1_3_33 via Feynrules generated UFO files. We are generating 1st KK gluon pair. This part seems ok. It is showing correct Feynman Diagrams. But while launching, it is showing some error message like :

MadGraph5Error : Unable to evaluate ((cmath.pi*R + 2*rG)*1/Sin((cmath.pi*MG1*R)/2.)*(3*cmath.pi*R + 2*rG*(3 - 4*cmath.cos(cmath.pi*MG1*R) + cmath.cos(2*cmath.pi*MG1*R)) - (4*cmath.sin(cmath.pi*MG1*R))/MG1 + cmath.sin(2*cmath.pi*MG1*R)/(2.*MG1)))/(8.*(2*rG + 1/Sin((cmath.pi*MG1*R)/2.)*((cmath.pi*R)/2. - cmath.sin(cmath.pi*MG1*R)/(2.*MG1)))**2): raise error: name 'Sin' is not defined

Thus it stops calculating cross section as well. Can you please help us explaining what is going on here?

Thanks !

Saurabh

Question information

Language:
English Edit question
Status:
Answered
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Last query:
2012-03-22
Last reply:
2012-03-22

Hi Claude,

Looks like a FR problem to me.
Could you take a look at this question:
> https://answers.launchpad.net/madgraph5/+question/191392

Cheers,

Olivier

PS: Your reply will be attached automatically to this ticket.

Begin forwarded message:

> From: Saurabh Niyogi <email address hidden>
> Date: 22 mars 2012 06:55:47 HAE
> To: <email address hidden>
> Subject: [Question #191392]: " Raise Error "
> Reply-To: <email address hidden>
>
> New question #191392 on MadGraph5:
> https://answers.launchpad.net/madgraph5/+question/191392
>
> Hi,
>
> We are trying to implement a scenario with flat TeV-sized extra
> dimensions having some non-universal parameters in
> MadGraph-5_v1_3_33 via Feynrules generated UFO files. We are
> generating 1st KK gluon pair. This part seems ok. It is showing
> correct Feynman Diagrams. But while launching, it is showing some
> error message like :
>
> MadGraph5Error : Unable to evaluate ((cmath.pi*R + 2*rG)*1/
> Sin((cmath.pi*MG1*R)/2.)*(3*cmath.pi*R + 2*rG*(3 -
> 4*cmath.cos(cmath.pi*MG1*R) + cmath.cos(2*cmath.pi*MG1*R)) -
> (4*cmath.sin(cmath.pi*MG1*R))/MG1 + cmath.sin(2*cmath.pi*MG1*R)/
> (2.*MG1)))/(8.*(2*rG + 1/Sin((cmath.pi*MG1*R)/2.)*((cmath.pi*R)/2. -
> cmath.sin(cmath.pi*MG1*R)/(2.*MG1)))**2): raise error: name 'Sin' is
> not defined
>
> Thus it stops calculating cross section as well. Can you please
> help us explaining what is going on here?
>
> Thanks !
>
> Saurabh
>
> --
> You received this question notification because you are a member of
> MadTeam, which is an answer contact for MadGraph5.

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