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

run_pr144_calculations.py

@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+"""
+Script to run Pr144 -> Nd144 beta decay calculations for neutrino mass range 1.5-2.5 keV
+"""
+
+import subprocess
+import os
+
+# Create output directory
+output_dir = "/home/unzhakov/workspace/massive_nu_pr"
+os.makedirs(output_dir, exist_ok=True)
+
+# Neutrino mass range: 1.5 to 2.5 keV with step of 50 eV
+# Convert to MeV: 1.5 keV = 0.0015 MeV, 2.5 keV = 0.0025 MeV, 50 eV = 0.00005 MeV
+start_mass_meV = 1.5  # keV
+end_mass_meV = 2.5  # keV
+step_mass_meV = 0.05  # keV (50 eV)
+
+# Convert to MeV
+start_mass_MeV = start_mass_meV / 1000.0
+end_mass_MeV = end_mass_meV / 1000.0
+step_mass_MeV = step_mass_meV / 1000.0
+
+# Energy step: 100 eV = 0.0001 MeV
+e_step_MeV = 0.0001
+
+# Intensity cutoff: 0.001
+intensity_cutoff = 0.001
+
+# Generate neutrino mass values
+mass_values = []
+mass = start_mass_MeV
+while mass <= end_mass_MeV:
+    mass_values.append(mass)
+    mass += step_mass_MeV
+
+print(f"Running calculations for {len(mass_values)} neutrino mass values...")
+print(
+    f"Neutrino mass range: {start_mass_meV} - {end_mass_meV} keV with step {step_mass_meV} keV"
+)
+print(f"Energy step: {e_step_MeV * 1000} eV")
+print(f"Intensity cutoff: {intensity_cutoff}")
+
+# Run calculations for each neutrino mass
+for i, mass_MeV in enumerate(mass_values):
+    mass_keV = mass_MeV * 1000.0
+    print(
+        f"\n[{i + 1}/{len(mass_values)}] Calculating for neutrino mass = {mass_keV:.2f} keV ({mass_MeV:.6f} MeV)"
+    )
+
+    # Generate filename
+    mass_str = f"{mass_keV:.2f}".replace(".", "_")
+    csv_filename = f"{output_dir}/pr144_nu_mass_{mass_str}keV.csv"
+    png_filename = f"{output_dir}/pr144_nu_mass_{mass_str}keV.png"
+
+    # Command to run
+    cmd = [
+        "python",
+        "-m",
+        "beta_spectrum.cli",
+        "--nuclide",
+        "Pr144",
+        "--neutrino-mass",
+        str(mass_MeV),
+        "--e-step",
+        str(e_step_MeV),
+        "--intensity-cutoff",
+        str(intensity_cutoff),
+        "--output",
+        csv_filename,
+        "--plot",
+        png_filename,
+        "-q",  # quiet mode
+    ]
+
+    print(f"Running: {' '.join(cmd)}")
+    result = subprocess.run(cmd, capture_output=True, text=True)
+
+    if result.returncode != 0:
+        print(f"Error in calculation for mass {mass_keV:.2f} keV:")
+        print(f"stdout: {result.stdout}")
+        print(f"stderr: {result.stderr}")
+    else:
+        print(f"Successfully completed calculation for mass {mass_keV:.2f} keV")
+
+print("\nAll calculations completed!")