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The tosca_book model was previously not working due to two reasons:

  • Bugs in the implementation of the computation
  • Mistakes in the source material's equation

The former have all been fixed and some of the latter have been corrected, namely:

  • Missing square root in the time-dependent term
  • Missing square root in the final energy term
  • The use of $\Delta \theta_B$ in the final energy term
  • The use of $d_f$ (should be $d_i$) in the final flight term

However, there are more mistakes in the source material that we have not been able to find yet and the value of the neutron mass in the equation has not been established yet (though that should be derivable by fitting once everything else is sorted). Especially, everything about $\Delta \theta_B$ and its use is suspicious.

@RastislavTuranyi RastislavTuranyi added bug Something isn't working help wanted Extra attention is needed labels Feb 13, 2025
New information from books and papers suggests that the delta theta b should indeed be outside the cotangent, though it also suggests that tha alpha2 and alpha3 equations are incorrect. The latter is not addressed here since the correct equations are as of yet unknown
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