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FIX: compute Wigner-Ds over all allowed helicities #311

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@redeboer redeboer commented Jun 30, 2022

Closes #309

Alignment Wigner-D functions should be evaluated over all allowed helicities, not just the original polarizations of the initial state (or final states). Following is the DPD intensity of $J/\psi \to \bar{p} \Sigma^+ K^0_S$ for two resonances in two different sub-systems.

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This PR (f6421f1):

@redeboer redeboer added the 🐛 Bug Something isn't working label Jun 30, 2022
@redeboer redeboer added this to the 0.15.0 milestone Jun 30, 2022
@redeboer redeboer self-assigned this Jun 30, 2022
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redeboer commented Jul 1, 2022

This log indicates that some more painful refactoring à la #281 will be required to get this PR to work... The reason is that specific amplitudes are formulated by the HelicityAmplitudeBuilder, which iterates over the StateTransitions it gets, while the SpinAlignment class does not have access to that information.

@redeboer redeboer marked this pull request as draft July 1, 2022 08:59
@redeboer redeboer modified the milestones: 0.15.0, 0.15.1 Mar 4, 2024
@redeboer redeboer changed the title fix: compute Wigner-Ds over all allowed helicities FIX: compute Wigner-Ds over all allowed helicities Apr 30, 2024
@redeboer redeboer modified the milestones: 0.15.1, 0.15.2 Apr 30, 2024
@redeboer redeboer modified the milestones: 0.15.2, 0.15.3, 0.15.4 May 20, 2024
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Sum DPD Wigner-D functions over all allowed helicities
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