Coverity fixes (Jens)
[u/mrichter/AliRoot.git] / PWGGA / PHOSTasks / PHOS_PbPbQA / README.PbPbQA
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2bfe5463 1PHOS QA class for using in PbPb runs in the PWGPP QA train.
ab1597fd 2
3The main objective is to provide a user with an input for pi0 mass,
4width and number-of-pi0-per-event trend plots in PbPb
5runs. Unfortunately, large combinatorial background prevents from the
6direct using of CaloCellQA framework for this, so the event mixing
7technique is essential.
8
9This class provides the standard set of 2D-histograms: invariant mass
10of two clusters in PHOS vs their pT both for "real" and "mixed" events
11for each of the three PHOS modules in centrality bins 0-20% and
1220-100% (cen0 and cen1 in the histogram names, resp). Only clusters
13with energy > 0.3 GeV and number of cells >2 are accepted.
14
15"Mixed" histograms are identified by "Mi" in their names.
16
17Requires no configuration.