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AmpGen update and models for Xi spectroscopy

Marian Stahl requested to merge mstahl_AmpGen into Sim09

The AmpGen update consists of a fix for the Canonical/Helicity formalism with deep decay topologies (adapted to c++11 from this commit on github) and the implementation of the P-vector formalism for generic K matrices (see this PR).

Models for Xi spectroscopy from charm decays will be added. Namely \Lambda_c^+\to\Xi^-K^+\pi^+, \Xi_c^+\to\Xi^-\pi^+\pi^+ and \Xi_c^+\to\Xi^-K^+\pi^+.

TODO:

  • cross check of AmpGen versions with lib_diff
  • validate generator level output
  • add \Xi_c^+\to\Xi^-\pi^+\pi^+
  • add \Lambda_c^+\to\Xi^-K^+\pi^+

/cc @tevans

Edited by Gloria Corti

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