adding (first version of) electron shower parametrization hists
See Rec!2319 for algorithm description and more details.
Sigmoid parameters are based on ideal shower shape MC (see Rec!2319).
DLL is based on Bd2Kstee upgrade sample with long tracks in Ecal acceptance with p>3 GeV/c and either electron (defining signal; not coming from charged pion or kaon decays) or charged pions or kaons (defining background).
MC config = Sim10-Up06/Reco-Up03
; Polarity = MagDown
; CondDB = sim-20200515-vc-md100
; DDDB = dddb-20200529
.
Edited by Maarten Van Veghel