MadGraph5_aMC@NLO

tau decay in pythia

Asked by teddym

Hi:
   I want to check the spin correlation in the tau decay products. And I have noticed that I should use Tauola in Pythia to handle tau decay.

And I use sm-full model and process p p > h, h > ta- ta+

I want to know that should I add some option in pythia_card.dat to turn on Tauola or it will be used automatically?

Thanks!

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English Edit question
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MadGraph5_aMC@NLO Edit question
Assignee:
Kentarou Mawatari Edit question
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Kentarou Mawatari (kentarou-mawatari) said : 		#1

automatically. Note that the Tauola interface can take into account only the trivial helicity correlations, but not the non-trivial polarization correlations; see more in detail in the TauDecay paper:

http://arxiv.org/abs/1212.6247

Best wishes,
Kentarou

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