Add massive neutrino support and improve CSV/CLI output

- Add neutrino mass parameter to SpectrumConfig and CLI interface - Update PhaseSpace component to handle neutrino mass effects properly - Update CSV headers to show basic endpoint and all transition types - Add --csv-verbosity option to CLI with 'full' and 'concise' options - Fix comparison plots to properly show linear scale variations - Add comprehensive tests for neutrino mass functionality
2026-07-02 10:33:28 +03:00
parent 406fd57bcd
commit 876e1e3ab8
48 changed files with 5213 additions and 97 deletions
@@ -0,0 +1,42 @@
+# Paulsen et al. (2024) — High precision measurement of 99Tc β spectrum
+
+## Citation
+
+Paulsen, M., Ranitzsch, P.C.-O., Loidl, M., et al. (2024). High precision measurement of the ⁹⁹Tc β spectrum. *Physical Review C*, 110, 055503. DOI: 10.1103/PhysRevC.110.055503
+
+## Key Results
+
+| Parameter | Value | Method |
+|---|---|---|
+| Q_β | 295.82(16) keV | MMC measurement |
+| g_A^eff | 1.526(92) | Spectrum shape (CVC-fixed sNME) |
+| g_V^eff | 0.376(5) | Half-life normalization |
+| g_A^eff (quenched) | 0.574(36) | Half-life normalization |
+| E_β | 98.51(23) keV | Theoretical spectrum integration |
+| log f | −0.47660(22) | Theoretical spectrum |
+| log f t | 12.3478(23) | Partial half-life |
+
+## Methodology
+
+- **Detector**: Metallic Magnetic Calorimeters (MMCs) at LNHB and PTB
+- **Energy threshold**: 0.65 keV (orders of magnitude lower than previous measurements)
+- **Energy resolution**: 0.1 keV at 383 keV
+- **Nuclear model**: NUSHELLX with GLEKPN valence space, Mach interaction
+- **sNME treatment**: CVC-fixed (not ESSM)
+
+## Key Figures
+
+- **Figure 9**: g_A-dependent theoretical β spectrum — shows dramatic shape changes for g_A ∈ {0.5, 0.8, 1.0, 1.2, 1.4, 1.6, 2.0}
+- **Figure 10**: Best-fit theoretical spectrum vs. measurement
+
+## Limitations
+
+- Used CVC-fixed sNME (not ESSM) → enhanced g_A value
+- Song et al. (2025) contradicts this result using ESSM
+
+## References
+
+- [[Shape Factor C(W, g_A)]]
+- [[SSM — Spectrum Shape Method]]
+- [[Song et al. (2025)]]
+- [[Ramalho & Suhonen (2024)]]
@@ -0,0 +1,43 @@
+# Song et al. (2025) — The measurement of 99Tc β-decay spectrum and implications for g_A
+
+## Citation
+
+Song, J.W., Ramalho, M., Lee, M.K., et al. (2025). The measurement of the ⁹⁹Tc β-decay spectrum and its implications for the effective value of weak axial coupling. *arXiv:2506.17544*.
+
+## Key Results
+
+| Model | g_A^eff | sNME [fm³] | χ²_ν | p-value |
+|---|---|---|---|---|
+| glekpn (CloseCVC) | 1.1 | 0.0674 | 1.106 | 0.12 |
+| jj45pnb (CloseCVC) | 1.0 | 0.0681 | 1.244 | 0.004 |
+| MQPM (CloseCVC) | 1.0 | 0.0651 | 1.644 | <0.0001 |
+| **glekpn (FarCVC)** | **1.2** | **−0.0698** | **1.066** | **0.22** |
+| jj45pnb (FarCVC) | 1.0 | −0.0669 | 1.097 | 0.14 |
+| MQPM (FarCVC) | 1.0 | −0.0683 | 1.095 | 0.14 |
+
+## Methodology
+
+- **Detector**: MMC with 4π gold absorber, energy threshold 10 keV
+- **Nuclear models**: glekpn, jj45pnb (NSM), MQPM
+- **sNME treatment**: ESSM (sNME as fit parameter) — two solutions per g_A (closeCVC and farCVC)
+- **Fit range**: 10–41 keV and 50–280 keV (excluding Gd X-ray region)
+
+## Key Findings
+
+1. **Contradicts Paulsen et al. (2024)**: The enhanced g_A value (1.526) is not supported when using proper ESSM treatment
+2. **Quenched g_A**: Best fit is g_A^eff = 1.0–1.2 with farCVC sNME
+3. **Best model**: glekpn with g_A^eff = 1.2, sNME = −0.0698 fm³, χ²_ν = 1.066
+
+## Implications
+
+- Resolves the inconsistency between first-forbidden and higher-forbidden nonunique transitions
+- Supports quenched g_A consistent with Suhonen's review values
+- Demonstrates the importance of proper sNME treatment in SSM analysis
+
+## References
+
+- [[Shape Factor C(W, g_A)]]
+- [[SSM — Spectrum Shape Method]]
+- [[ESSM — Enhanced Spectrum Shape Method]]
+- [[Paulsen et al. (2024)]]
+- [[Ramalho & Suhonen (2024)]]