Test beam "publish"(performance) plot - PS data.

To make progress with the energy scale and non-linearity we need to "publish" a few things from the test beam analysis, to be included in an EMCal analysis note. These are things which must be compared to MC, to be sure that we have the MC under control. We have data for 10 values of beam momenta - 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 5 and 6 GeV.

Cell threshold is 2 adc units (~30 MeV)

The number of cells per cluster at each momenta.

  • pdf file: Presentation for EMCAL phone meeting at Jan 20,2011 by Alexei Pavlinov.

You can read the list of histograms with next peace of code:

    TFile f("PS_th2_NcellsInCluster.root","READ");
    TIter nextkey(f.GetListOfKeys());
    int nKeys = f.GetListOfKeys()->GetSize();
    printf("\t Keys %i \n", nKeys); // Should be one
    TKey *key=(TKey*)nextkey(); // get first key (only one exist) 
    TObject *obj = key->ReadObj();
    TList *l = dynamic_cast<TList *>(obj);
    TH1 *h = dynamic_cast<TH1 *>(l->At(i));  // i is index of hist

-- AlexeiPavlinov - 21-Jan-2011

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Topic revision: r1 - 2011-01-21 - AlexeiPavlinov
 
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