Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
#include "TCanvas.h"
#include <TStyle.h>
#include <TH1.h>
#include <TF1.h>
#include "THcShowerCalib.h"
//
// A steering Root script for the HMS calorimeter calibration.
//
void hcal_calib(string RunNumber) {
// Initialize the analysis clock
clock_t t = clock();
cout << "Calibrating run " << RunNumber << endl;
THcShowerCalib theShowerCalib(RunNumber);
theShowerCalib.Init(); // Initialize constants and variables
theShowerCalib.CalcThresholds(); // Thresholds on the uncalibrated Edep/P
theShowerCalib.ComposeVMs(); // Compute vectors amd matrices for calib.
theShowerCalib.SolveAlphas(); // Solve for the calibration constants
theShowerCalib.SaveAlphas(); // Save the constants
// theShowerCalib.SaveRawData(); // Save raw data into file for debug purposes
theShowerCalib.FillHEcal(); // Fill histograms
// Plot histograms
TCanvas* Canvas =
new TCanvas("Canvas", "HMS Shower Counter calibration", 1000, 667);
Canvas->Divide(2,2);
Canvas->cd(1);
// Normalized uncalibrated energy deposition.
theShowerCalib.hEunc->DrawCopy();
theShowerCalib.hEuncSel->SetFillColor(kGreen);
theShowerCalib.hEuncSel->DrawCopy("same");
// E(Tail)%E(Preshower).
Canvas->cd(2);
theShowerCalib.hETAvsEPR->Draw();
// Normalized energy deposition after calibration.
Canvas->cd(3);
gStyle->SetOptFit();
theShowerCalib.hEcal->Fit("gaus","","",0.95,1.05);
theShowerCalib.hEcal->GetFunction("gaus")->SetLineColor(2);
theShowerCalib.hEcal->GetFunction("gaus")->SetLineWidth(1);
theShowerCalib.hEcal->GetFunction("gaus")->SetLineStyle(1);
// HMS delta(P) versus the calibrated energy deposition.
Canvas->cd(4);
theShowerCalib.hDPvsEcal->Draw();
// Calculate the analysis rate
t = clock() - t;
printf ("The analysis took %.1f seconds \n", ((float) t) / CLOCKS_PER_SEC);
}