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Dibaryon semileptonic mode: LHCBGAUSS-1452 .B2pplnuDecayModel

Gloria Corti requested to merge cherry-pick-abe41869-2 into Sim09-upgrade

Propagate merging of branch 'LHCBGAUSS-1452.B2pplnuDecayModel' into 'Sim09-upgrade'

See initial merge request !331 (merged) for 'master' and corresponding lhcb/Gauss!!386 (merged) into 'Sim09'

(cherry picked from commit abe41869)

  • 9374f14a added Gen/EvtGenExtras from Gauss (Gauss/LHCBGAUSS-1452.B2pplnuDecayModel)
  • d5d79a16 Simplified amplitude calculation
  • bfc23f88 Corrected iteration over EvtGammaMatrix and momentum components
  • a3a94d72 Optimised amplitude calculation in EvtSLDiBaryonAmp.
  • 19428b5f Modify amplitudes to be consistent with theory formulae.
  • ffe4e968 Add missing gamma0 matrices (ubar terms); more optimisations.
  • dae7f5e7 Simplify form factor use and set max probabilities.
  • e5471f0c Slightly increase probabilities for N* modes.
  • 15fb2481 Move model from EvtGenExtras to EvtGen.

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