Hard-pT 3to4 events in 2005 pT Shifts

 

There were some worries addresses previously about the discontinuity seen in the 2005 pT-shifts.  The lowest three bins appear to follow a different trend than the rest of the points.  For the final results, three seperate trigger combinations will be combined to account for prescales, and the HT2||JP2 combination is the most significant of the three in data.  Shown below are the pT-shifts for HT2||JP2 for a variety of cuts and configurations.

 

 

It appears that this discontinuity is largely caused by events coming from the lowest (and highest weighted) hard pT partonic sample: 3-4 GeV.  This can be seen by comparing the black points (final cuts) and pink points (final cuts removing only events with 3.0<hardPt<4.0) above.  

Since our final cuts are slightly different than the cuts used for the PRL, I've displayed both for comparison.  There is good agreement with our results before the electron-like jet cut and what was used in the PRL paper (this was shown previously here http://drupal.star.bnl.gov/STAR/blog-entry/staszak/2008/jun/30/2005-inclusive-jet-trigger_reconstruction-bias.)    Some specifics about the jets from 3-4 Gev:

 

One jet makes it into the lowest data bin (5.0 - 6.15 GeV): 

py:3.97297, g:5.03345     hardPt:3.61841  neuE:0.813287   gETA: 0.608862  gPhi: -1.31316  highTowId: 951  highTowEt: 2.89246      highTrackPt: 0.555257

Two jet makes it into the lowest data bin (6.15 - 7.5645 GeV): 

py:3.55499, g:6.27699     hardPt:3.04032  neuE:0.78962    gETA: 0.327068  gPhi: -0.843236 highTowId: 828  highTowEt: 4.98457      highTrackPt: 1.29692

py:5.86544, g:7.11565     hardPt:3.89065  neuE:0.837881   gETA: 0.59013   gPhi: 0.491004  highTowId: 293  highTowEt: 4.58795      highTrackPt: 1.15704

One jet makes it into the lowest data bin (7.5645 - 9.30434 GeV): 

py:5.30851, g:7.8928      hardPt:3.14358  neuE:0.731737   gETA: 0.245051  gPhi: 2.97671   highTowId: 1684 highTowEt: 3.36342      highTrackPt: 1.36602

py:3.59078, g:8.87945     hardPt:3.26469  neuE:0.675637   gETA: 0.521149  gPhi: -1.3115   highTowId: 930  highTowEt: 3.63181      highTrackPt: 1.66803

py:5.13053, g:8.07165     hardPt:3.80001  neuE:0.593979   gETA: 0.612946  gPhi: -3.08451  highTowId: 1655 highTowEt: 3.92983      highTrackPt: 2.11355

py:7.37885, g:9.21974     hardPt:3.827    neuE:0.614406   gETA: 0.539471  gPhi: -2.57939  highTowId: 1510 highTowEt: 4.57877      highTrackPt: 3.31024

py:5.74062, g:7.63312     hardPt:3.42863  neuE:0.314736   gETA: 0.596546  gPhi: 2.11341   highTowId: 2088 highTowEt: 0.945042     highTrackPt: 2.66064

 

So once again we are in the position of deciding how well we think this small subsample of the simulation dataset matches our data.  I've included the same comparison figures for each trigger seperately below: