MadGraph5_aMC@NLO

Graviton+gamma from ADD model

Asked by Sergei Chekanov

 Hello,

 I'm looking for process with large extra dimensions ("ADD" model). The process is pp-> Graviton+gamma
 (monophotons) . Do you have any suggestions on how to generate such events (preferably - at NLO)

best, Sergei

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MadGraph5_aMC@NLO Edit question
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Rikkert Frederix Edit question
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Rikkert Frederix
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Best Rikkert Frederix (frederix) said : 		#1

Dear Sergei,

In the ADD model the Graviton is not a single state, but rather a superposition of many nearly degenerate particles. Therefore, one cannot generate such a process directly with madgraph5_aMC@NLO. What is possible, is to have the (sum of) Graviton states as an intermediate resonance, if you create/find a model for this. It might be available from the FeynRules website --I haven't checked.

Best regard,
Rikkert

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Sergei Chekanov (chekanov) said : 		#2

Thanks. Ok, this look too complicated. We'll use Pythia8 for now.
 best, Sergei