QA P08id (Phi->KK)

This is the QA for P08id (phi - > KK). econstructin on Global Tracks and just Kaons. Macro from Xianglei used (I found the QA macro very  familiar). scale factor of 1.38 applied.

1. dEdx

 Reconstruction on Kaon Daugthers. 2 different plots are shown just to see how Montecarlo looks on top of the Ghost Tracks

2. DCA Distributions

An original 3D histogram had been created  and filled with pT, Eta and DCA as the 3 coordinates. Projection on PtBins and EtaBins had been made to create this "matrix" of plots.

Pt Bin array  used : { 0.5, 0.6, 0.8, 1.0} (moves down) and

Eta Bin array : {0.2, 0.5, 0.8, 1.0} (moves to the right)

For the Error bars, i used the option hist->Sumw2();

3. NFit Distributions

Similarly An Original 3D Histogram had been created with Pt, Eta and Nfit as coordinates. Respective projections had been made  in the same pT  and Eta Bins as the DCa distributions.

Pt Bin array  used : { 0.5, 0.6, 0.8, 1.0} (moves down) and

Eta Bin array : {0.2, 0.5, 0.8, 1.0} (moves to the right)

For the Error bars, i used the option hist->Sumw2();

4. Delta Vertex

The following are the Delta Vertex ( Vertex Reconstructed - Vertex Embedded) plot for the 3 diiferent coordinates (x, y and z)

5. Z Vertex and X vs Y vertex

6. Global Variables : Phi and  Rapidity

7. Pt

 Embedded Phi meson with flat pt (black)and Recosntructed Kaons (red).

8. Randomness Plots

The following plots, are to check the randomness of the input Monte Carlo (MC) tracks.