**Omega-> Lamba + K ^{-} -> P + Pion ^{-} + K **

**(03 08 2009)**

**1. Dedx**

Reconstruction on pion Minus and Proton Daugthers. 2 different plots are shown just for the sake of completenees.... Reconsructing on Kaon had very few statistics

Reco PionMinus | Reco Proton |

**2.Dca**

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();

***.Reconstructing on Pion **

__ *. Reconstructing on Proton__

**3. Nfit**

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();

***. Reconstructing Pion**

***. Reconstructing Proton**

**4. Delta Vertex **

When reconstructed in Pion Minus and Proton it turns out to have the same ditreibutions so I just posted one of them

**5. Z Vertex and X vs Y vertex**

**6. Global Variables : Phi and Rapidity**

Reco Pion | Reco Kaon |

**7. pt**

**8. Randomness**