Muon lifetime fitting

[Tom-Willemsen]

A bit like #227 (do after 227 has been implemented). In many ways this is a simpler version of that spin-asymmetry ticket.

Description

• In a SimpleDae reducer:
  • Measure spectra from $N$ detectors - so you have $N$ different arrays of counts vs time
  • Sum the $N$ detectors together - so you have a single array of counts vs time
  • Normalize by good frames - so you have a single array of normalized counts vs time
  • Fit with $\huge c = N_0 e^{-\lambda_0 t} + N_1 e^{-\lambda_1 t}$
    • Scientists will provide initial guesses for all fit parameters
  • From the reducer return the fit parameters
• The outer fit might be either a peak-like, a Gaussian, a momentum scan fit, or erf/erfc. Therefore you can assume that our existing fitting models are already suitable, for fits at this level.

Acceptance criteria

• Algorithm in description is implemented.

Discussed 00:27:00 - in planning 02/10/25