A problem in understanding the Lfermion part in feynrules

Asked by namrata manglani

Hello Madgraph team,
i am trying to learn the implementation of a new models in madgraph via feynrules.
for that i started with the SM.nb given in feynrules package.
when we see L fermion it gives me something like follows:
I phi2 Subscript[CKM, n$2287, m$2287] Subscript[
\!\(\*OverscriptBox[\(uq\), \("-"\)]\), s$2287, n$2287,
   i$2287].Subscript[dq, r$2287, m$2287, i$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,d], m$2287] - I SuperDagger[phi2]
\!\(\*SubsuperscriptBox[\(CKM\), \(n$2288,
   m$2288\), \("*"\)]\) Subscript[
\!\(\*OverscriptBox[\(dq\), \("-"\)]\), r$2289, m$2288,
   i$2288].Subscript[uq, r$2290, n$2288, i$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2289, r$2290] Subscript[
  Superscript[y,d], m$2288] - ((H + I phi + v) Subscript[
\!\(\*OverscriptBox[\(dq\), \("-"\)]\), s$2287, n$2287,
   i$2287].Subscript[dq, r$2287, n$2287, i$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,d], n$2287])/Sqrt[2] - ((H - I phi + v) Subscript[
\!\(\*OverscriptBox[\(dq\), \("-"\)]\), r$2291, n$2288,
   i$2288].Subscript[dq, r$2292, n$2288, i$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2291, r$2292] Subscript[
  Superscript[y,d], n$2288])/Sqrt[2] - ((H + I phi + v) Subscript[
\!\(\*OverscriptBox[\(l\), \("-"\)]\), s$2287, n$2287].Subscript[l,
   r$2287, n$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,l], n$2287])/Sqrt[2] + I phi2 Subscript[
\!\(\*OverscriptBox[\(vl\), \("-"\)]\), s$2287, n$2287].Subscript[l,
   r$2287, n$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,l], n$2287] - ((H - I phi + v) Subscript[
\!\(\*OverscriptBox[\(l\), \("-"\)]\), r$2293, n$2288].Subscript[l,
   r$2294, n$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2293, r$2294] Subscript[
  Superscript[y,l], n$2288])/Sqrt[2] - I SuperDagger[phi2] Subscript[
\!\(\*OverscriptBox[\(l\), \("-"\)]\), r$2295, n$2288].Subscript[vl,
   r$2296, n$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2295, r$2296] Subscript[
  Superscript[y,l], n$2288] + I SuperDagger[phi2]
\!\(\*SubsuperscriptBox[\(CKM\), \(m$2287,
   n$2287\), \("*"\)]\) Subscript[
\!\(\*OverscriptBox[\(dq\), \("-"\)]\), s$2287, n$2287,
   i$2287].Subscript[uq, r$2287, m$2287, i$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,u], m$2287] -
 I phi2 Subscript[CKM, m$2288, n$2288] Subscript[
\!\(\*OverscriptBox[\(uq\), \("-"\)]\), r$2297, m$2288,
   i$2288].Subscript[dq, r$2298, n$2288, i$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2297, r$2298] Subscript[
  Superscript[y,u], m$2288] - ((H - I phi + v) Subscript[
\!\(\*OverscriptBox[\(uq\), \("-"\)]\), s$2287, n$2287,
   i$2287].Subscript[uq, r$2287, n$2287, i$2287] Subscript[
\!\(\*SubscriptBox[\(P\), \("+"\)]\), s$2287, r$2287] Subscript[
  Superscript[y,u], n$2287])/Sqrt[2] - ((H + I phi + v) Subscript[
\!\(\*OverscriptBox[\(uq\), \("-"\)]\), r$2299, n$2288,
   i$2288].Subscript[uq, r$2300, n$2288, i$2288] Subscript[
\!\(\*SubscriptBox[\(P\), \("-"\)]\), r$2299, r$2300] Subscript[
  Superscript[y,u], n$2288])/Sqrt[2]

i wanted to what are these numbers m$2288 r$2298 etc etc here
after searching i guess its cellular aumation number .
but whats the use of this number ?
thanks !
cheers

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Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi,

Since this is a FeynRules question, I (and the MadGraph team) have no idea how to answer your question.
I have assign your question to the FeynRules project on launchpad, but I don't think that the FR author really use launchpad to answer question. I would therefore advise to go on the FeynRules website to ask your question.

Cheers,

Olivier

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