Irreducible Tensor Formula

[jiangyi15]

Covariant orbital-spin scheme for any spin based on irreducible tensor.

decay:
    A: [BC, D, model: cov_ten_simple ]
    BC: [B, C, model: cov_ten_simple ]

It consistent with the current helicity formula.

ls_selector options (qr, or weight) for decay to massless particles. It will remove redundant degrees of freedom due to $\lambda \neq 0$ (spins: [-1, 1])

decay:
    A: [BC, gamma,  ls_selector: qr]

[codecov]

Codecov Report

Attention: 180 lines in your changes are missing coverage. Please review.

Comparison is base (a2be967) 77.78% compared to head (bcee88c) 77.96%.

Files	Patch %	Lines
tf_pwa/cov_ten_ir.py	68.87%	60 Missing and 20 partials ⚠️
tf_pwa/amp/cov_ten.py	81.36%	53 Missing and 18 partials ⚠️
tf_pwa/amp/core.py	83.84%	16 Missing and 5 partials ⚠️
tf_pwa/histogram.py	14.28%	6 Missing ⚠️
tf_pwa/dfun.py	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #138      +/-   ##
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+ Coverage   77.78%   77.96%   +0.18%     
==========================================
  Files         115      119       +4     
  Lines       17218    17967     +749     
  Branches     3231     3393     +162     
==========================================
+ Hits        13393    14008     +615     
- Misses       3108     3204      +96     
- Partials      717      755      +38     

Flag	Coverage Δ
unittests	77.96% <77.94%> (+0.18%)	⬆️

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