Issues

• Use consistent argument names for masses in the dynamics API

  ⚠️ Interface
  Enhancement

  ComPWA/ampform#531 · Filter by author redeboer opened on Oct 15, 2026 · 0.17.0
  

• Parameterize the energy-dependent width with bare couplings

  ⚠️ Interface
  Enhancement

  ComPWA/ampform#523 · Filter by author Zeyna777 opened on Sep 15, 2026 · 0.17.0
  

• Follow PDG conventions by default for Breit–Wigner and form factors

  ❗ Behavior
  Enhancement

  ComPWA/ampform#522 · Filter by author redeboer opened on Sep 15, 2026 · 0.17.0
  

• Restore the pinned SciPy intersphinx inventory

  🔨 Maintenance
  Task

  ComPWA/ampform#512 · Filter by author redeboer opened on Sep 3, 2026
  

• Merge AmpForm-DPD into AmpForm

  💥 Epic
  Epic

  ComPWA/ampform#504 · Filter by author redeboer opened on Jul 4, 2026
  

• Implement amplitude builder with general Wigner rotations

  💥 Epic✨ Feature
  Epic

  ComPWA/ampform#453 · Filter by author redeboer opened on Jan 24, 2025

• First argument of FormFactor should be in GeV, not GeV² (s)

  ⚠️ Interface❔ Question
  ComPWA/ampform#429 · Filter by author redeboer opened on May 28, 2024
  2

  

• Implement tensor formalism

  ✨ Feature
  Epic

  ComPWA/ampform#351 · Filter by author redeboer opened on Jun 20, 2023
  2

• Show how Flatté can be derived from a 2-channel K-matrix

  📝 Docs
  ComPWA/ampform#349 · Filter by author redeboer opened on May 30, 2023
  1

  

• Reconsider amplitude builder design to improve implementation of spin alignment

  ⚠️ Interface❔ Question
  Epic

  ComPWA/ampform#318 · Filter by author redeboer opened on Aug 2, 2022 · 0.17.0
  2

  

• Build helicity basis with minimal angular momentum

  ✨ Feature
  ComPWA/ampform#310 · Filter by author redeboer opened on Jun 30, 2022

• Consider combining or renaming dynamics.phasespace

  ⚠️ Interface❔ Question
  ComPWA/ampform#293 · Filter by author redeboer opened on May 23, 2022

• Improve documentation of parity prefactor

  📝 Docs
  ComPWA/ampform#284 · Filter by author redeboer opened on May 16, 2022 · 0.17.0
  1

  

• Remove QRules from interface

  ⚠️ Interface🔨 Maintenance
  Epic

  ComPWA/ampform#281 · Filter by author redeboer opened on Apr 27, 2022 · 0.17.0
  1

  

• Improve treatment of analyticity

  ❗ Behavior💥 Epic
  Epic

  ComPWA/ampform#259 · Filter by author redeboer opened on Mar 30, 2022
  

• Formulate amplitudes with SymPy bra-ket states

  ❔ Question
  ComPWA/ampform#257 · Filter by author redeboer opened on Mar 15, 2022

• Rewrite ArrayMultiplication and ArrayAxisSum with TensorContraction and TensorProduct

  🔨 Maintenance
  ComPWA/ampform#203 · Filter by author redeboer opened on Jan 13, 2022

• Insert formulas in docstrings with MyST substitutions

  📝 Docs🖱️ DX
  ComPWA/ampform#202 · Filter by author redeboer opened on Jan 11, 2022

• Create expression tree visualization widget

  📝 Docs💫 Good first issue
  ComPWA/ampform#200 · Filter by author redeboer opened on Jan 5, 2022

• Use TensorWaves' create_function() for widgets

  📝 Docs💫 Good first issue
  ComPWA/ampform#199 · Filter by author redeboer opened on Jan 5, 2022

• Build single-channel amplitude model with K-matrix dynamics from QRules ReactionInfo

  ✨ Feature
  Epic

  ComPWA/ampform#157 · Filter by author redeboer opened on Sep 20, 2021
  

• Implement 𝐾-matrix formalism

  💥 Epic✨ Feature
  Epic

  ComPWA/ampform#67 · Filter by author redeboer opened on May 27, 2021
  

• Reorganize amplitude building functions and make public

  📝 Docs🔨 Maintenance
  Epic

  ComPWA/ampform#61 · Filter by author redeboer opened on May 19, 2021
  2

• Implement spin density matrix

  ✨ Feature
  Epic

  ComPWA/ampform#7 · Filter by author redeboer opened on Nov 19, 2020

• Describe helicity formalism

  📝 Docs
  Task

  ComPWA/ampform#210 · Filter by author spflueger opened on Jan 13, 2020