Fix the missing sqrt(2) in ERF fitting func.

Co-authored-by: Copilot <copilot@github.com>
2026-08-31 14:24:55 +02:00
parent 3686b3e8c4
commit 57a6969de8
1 changed files with 1 additions and 1 deletions
@@ -252,7 +252,7 @@ def get_graph_fitting(xPreSampled, zPreSampled, xErrors, zErrors):
    gr_oversampled.SetTitle(';X Position Aligned [#mum]; Relative Intensity')
    gr_oversampled.Draw('APL')

-    erf_func = TF1('erf_func', '[0]*0.5*(1 + TMath::Erf((x - [1])/[2])) + [3]')
+    erf_func = TF1('erf_func', '[0]*0.5*(1 + TMath::Erf((x - [1])/(TMath::Sqrt(2)*[2]))) + [3]')
    erf_func.SetLineColor(kRed+1)
    erf_func.SetParLimits(0, 0.2, 1.2) # amplitude
    erf_func.SetParLimits(1, -5*2.5, 5*2.5) # midpoint