beta_shape_pnpi

Files

T

unzhakov ed3fd5dc9d feat(radiative): implement O(Z*alpha^2) correction and improve numerical stability

- Add Z (nuclear charge) and A (mass number) parameters to RadiativeCorrection
- Implement O(Z*alpha^2) finite nuclear size correction per Sirlin 1987:
  - Energy-dependent part: ln(m_p) - (5/12)*ln(2W) + 43/18
  - Nuclear-structure-dependent part: Delta_F(Z,A) from modified Gaussian model
- Add small-beta Taylor expansion for numerical stability at threshold (beta < 1e-6)
- Extract _safe_beta() and _safe_tanh_inv_beta_over_beta() helper methods
- Remove unused log_wright_bessel import
- Add 14 new tests: Z-dependence, numerical stability, A parameter coverage
- Update docs/06-radiative-corrections.md with new API usage examples

All 70 tests pass. 14 new tests in 3 new test classes.

2026-04-30 07:18:02 +03:00

components

feat(radiative): implement O(Z*alpha^2) correction and improve numerical stability

2026-04-30 07:18:02 +03:00

data

Add data directory

2026-04-15 18:12:53 +03:00

__init__.py

Add pytest test suite (56 tests) for all spectrum components

2026-04-26 23:45:53 +03:00

base.py

Initial commit