oneBodyDecay/oneBodyVADecay
- oneBodyDecay / oneBodyVADecay:
- Works with VSimPD license. - Kinds of MonteCarlo interactions that model the decay of an unstable particle into a single final-state particle. - oneBodyVADecay choses the energy and momentum of the final-state particle is based on the V-A theory. This is valid, for example, for describing the decay of muons into electrons, where the final-state neutrinos are not kinetically modeled. The momentum of the final-state particle however takes into account that part of the momentum of the unstable particle is carried away by one or several neutrinos. - Note - This feature replaces the oneBodyVADecay and oneBodyVADecayVW features previously implemented in Vorpal collisions. 
oneBodyDecay/oneBodyVADecay Parameters
- unstableSpecies (string)
- This specifies the name of the unstable (decaying) species. 
- lifetime (real)
- This specifies the unstable species lifetime in seconds. 
- productSpecies (string)
- This specifies the Species product of the decay of the unstable species. 
- isDissociation (boolean)
- If true, the unstable species decays into two resultant productSpecies particles. 
Example oneBodyDecay Block
<Interaction Decay>
  kind = oneBodyDecay
  unstableSpecies = muons
  productSpecies = electrons
  lifetime = 2.2e-6
<Interaction>