I have analyzed the new test production for run 7 Au+Au @ 200GeV P08ic and compared to the old problematic production P08ib(already deleted by now).I also compared the new production P08ic to the old production P07id(regular analysis production).

You may refer to lidia's posting regarding the different productins and how to query them at:

http://www.star.bnl.gov/HyperNews-star/protected/get/starsoft/7417.html

 

RefMult cuts used (globals and primaries):

• |eta|<0.5
• nFitPts>10
• Global_dca <3 cm:

                      globals: track->geometry()->helix().distance(stEvent->primaryVertex()->position())<3

                      primaries; track->dcaGlobal().mag()<3

Centrality cut:

• Central: CTB>16500
• MinBias :None

 

Comparison of P08ic to the old production P08ib with TPC+SSD+SVT :

 

 

  Note:the reason I was getting few statistics before was because I wasn't setting the number of files in the query ~ nFiles.It defaults to a 100 files if not set explicitely.Compare to the plots presented at the S&C meeting last week:  http://drupal.star.bnl.gov/STAR/nch-versus-vertex-z

Pt cuts used : 

• pt1: <0.3 GeV/c
• pt2 : 0.3-1.0 GeV/c
• pt3: >1 GeV/c

 

 

 

 

 

 

 

 

 

 

 

 

 

    Fig1. : Nch vs. VertexZ for P08ic central w/silicon                                                            Fig1. : Nch vs. VertexZ for P08ib central w/silicon

 

Comparison of P08ic to the analysis production P07id  with TPC only :

 

 

 

 

 

 

 

 

 

 

 

 

 

 

      Fig3. : Nch vs. VertexZ for P08ic MinBias w/TPC only                                                         Fig4. : Nch vs. VertexZ for P07id MinBias w/TPC only

 

Comparison of P08ic with/without SVT+SSD :

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 5 : Nch vs. VertexZ for P08ic MinBias w/TPC+SVT+SSD                                              Fig. 6 : Nch vs. VertexZ for P08ic MinBias  w/TPC only