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None Neutrinos from muon decay 

Forum: Hadronic Processes
Date: 11 Jul, 2011
From: Tom Roberts <Tom Roberts>

The neutrino distributions from muon decay are wrong (geant4-09-04).

The physics manual says: "The momenta of the two neutrinos are not sampled from their V - A distributions. Instead they are generated back-to-back and isotropically in the neutrinosí center-of-mass frame, with the magnitude of the neutrino momentum chosen to conserve energy in the decay. The two neutrinos are then boosted opposite to the momentum of the decay electron. This approximation is sufficient for most simulations because the neutrino is usually not observed in any detector."

We are interested in using Geant4 to model neutrino facilities, in which muon decays are the source of the neutrinos of interest.

Has anybody fixed this? If not, what is the best way to fix it?

(It is not obvious which forum to post this to.)

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1 None: Re: Neutrinos from muon decay   (Tom Roberts - 17 Jul, 2011)
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