rktrackrep - GenFit/GenFit GitHub Wiki

To the best understanding, here is what the RKTrackRep is doing when extrapolating:

  • RKPropagate: Do one RK-Step

  • RKutta:

  • Do n RK-Step's until target surface
  • Do linear extrapolation to target surface
  • Project Jacobian to target surface
  • Project Noise to target surface
  • Calculate http://mathurl.com/zhwtb5d
  • Extrap: Apply correction with http://mathurl.com/zhwtb5d