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Author SHA1 Message Date
unzhakov 3acb23987a docs: add gA-driven shape factor parameterization (SSM) note 
Comprehensive documentation on parameterizing the shape factor C(Z,W)
via g_A for forbidden nonunique beta decays, based on:
- Kostensalo et al. PRC 95, 044313 (2017) - SSM introduction
- Kostensalo & Suhonen PRC 96, 024317 (2017) - gA-driven evolution
- Paulsen et al. PRC 110, 055503 (2024) - 99Tc high-precision MMC measurement

Covers: shape factor decomposition, fitting algorithm, uncertainty budget,
implementation plan for ShapeFactorGA module, and literature summary.
 2026-05-13 14:46:58 +03:00
unzhakov 5f99566a0e feat(detector): add detector response module, convolution, and integration 
- Analytical detector response: gaussian, gaussian_tail, tikhonov models
- Low-energy tail modeling for charge collection effects
- Response matrix convolution via R^T · (Φ·ΔW)
- Declarative API: create_detector_from_config(), convolve_detector()
- BetaSpectrumAnalyzer.convolved_spectrum() for auto-convolution
- Integration tests: TestBetaSpectrumIntegration, TestDeclarativeDetectorResponse
- Documentation: docs/08-detector-response.md
 2026-05-01 19:20:59 +03:00
unzhakov 1e678cfab7 docs: reformat radiative corrections doc to Obsidian YAML frontmatter 2026-05-01 19:17:26 +03:00
unzhakov 21901aac70 Merge branch 'dev/radiative-correction-improvements' into main 2026-04-30 22:18:16 +03:00
unzhakov b2d8fbdd63 Add article summary 
Hayen 2019 1-st forbidden transitions in the reactor anomaly
 2026-04-30 18:19:36 +03:00
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
unzhakov 4185d2c77c Update docs for radiative correction 
Added summaries for Sirlin's articles and spec file based on them.
 2026-04-29 22:38:25 +03:00
unzhakov c40a6f7700 Update description and docs 
Phase space upgrad (forbidden factors)
 2026-04-29 22:35:56 +03:00
unzhakov 4d508ca313 Add doc summary: 2050_Song 99TcMeasurement 
Measurement of the 99Tc beta-spectrum and implications for g_v
 2026-04-29 13:48:42 +03:00
unzhakov cb4c2d6235 Untrack deleted files 2026-04-27 20:43:40 +03:00
unzhakov 9ead290775 Documentation update 
Added 2024 Paulsen article on Tc 99 measurements
 2026-04-27 20:40:54 +03:00
unzhakov d8bc5e1b43 Move Hayen biblography to docs/refs/ 2026-04-27 17:47:13 +03:00
unzhakov 85134396d6 Add reference extraction tool (extract_refs.py) and BibTeX from Hayen2017 PDF 
Local regex-based parser extracts journal, volume, pages for 83% of
references. Supports both local mode (--pdf paper.pdf) and LLM fallback
(--llm) via llama-server API. Includes 319-entry BibTeX in data/.
 2026-04-27 11:03:06 +03:00
unzhakov 8dac095d33 Add Obsidian knowledge base (docs/) and update README with docs structure 2026-04-26 22:41:42 +03:00