Kotov mechanism

[oparry-ukaea]

Reaction classes and data for the Kotov '08 mechanism.

ToDo:

• Dissociative reactions
  • Core classes (population-change terms)
  • Rate data
  • Non-population-change terms?
  • Diagnostics
  • Regression tests
• Molecular CX
  • Core classes (population-change terms)
  • Rate data
  • Non-population-change terms?
  • Diagnostics
  • Regression test
• Elastic collisions
  • Core classes
  • Rate data
  • Non-population-change terms
  • Diagnostics
  • Regression test
• Integration test
• Example?
• Option to use HydHel rate data for (atomic) CX rather than Amjuel (Kotov uses HH H.x 3.1.8)
  • Handle $\langle \sigma.v\rangle(T,E)$
  • HydhelReader
  • Rate data
• User manual updates

- [ ] One-line config to set up full mechanisms Postponed to future PR

[codecov]

Codecov Report

❌ Patch coverage is 87.91946% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.86%. Comparing base (ce0ea3b) to head (3c65b0d).
⚠️ Report is 8 commits behind head on master.

Files with missing lines	Patch %	Lines
src/reaction.cxx	76.59%	7 Missing and 4 partials ⚠️
src/elastic_collisions.cxx	87.09%	3 Missing and 1 partial ⚠️
src/hydrogen_molecule_reactions.cxx	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #552      +/-   ##
==========================================
+ Coverage   47.29%   47.86%   +0.57%     
==========================================
  Files          96      100       +4     
  Lines        9828     9932     +104     
  Branches     1428     1433       +5     
==========================================
+ Hits         4648     4754     +106     
  Misses       4704     4704              
+ Partials      476      474       -2     

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