Example of positive pion purity for 0-10% centrality bin

and 30-40% centrality

Below you can find details of extrapolation of positively charged pion yield using pt.

Table below shows following informations :
middle of the y-bin , centrality bin, experimental yield, extrapolated 4pi yield, % of extrapolation

  0.14   0 0.98522    1.32287      25.5241 
  0.24   0 1.18793    1.38555      14.263
  0.34   0 1.24454    1.44103      13.6354
  0.44   0 1.30137    1.50252      13.3877
  0.54   0 1.22607    1.59581      23.1696
  0.64   0 1.25522    1.62962      22.9751
  0.74   0 1.26571    1.64011      22.8279
  0.84   0 1.26581    1.64768      23.1759
  0.94   0 1.24412    1.61927      23.1677
  1.04   0 1.2046     1.577        23.6141
  1.14   0 1.12507    1.47653      23.8029
  1.24   0 0.89326    1.41406      36.83
  1.34   0 0.66409    1.35225      50.8898
  1.44   0 0.57361    1.22947      53.3448

  0.14   1 1.38137    1.83909      24.888
  0.24   1 1.67938    1.95282      14.0024
  0.34   1 1.75265    2.02363      13.3904
  0.44   1 1.84953    2.12868      13.1135
  0.54   1 1.75548    2.27022      22.6734
  0.64   1 1.80374    2.33716      22.8233
  0.74   1 1.85483    2.39182      22.4512
  0.84   1 1.86584    2.39465      22.0831
  0.94   1 1.83575    2.35672      22.1057
  1.04   1 1.76205    2.27436      22.5255
  1.14   1 1.64802    2.14265      23.0849
  1.24   1 1.31097    2.04759      35.975
  1.34   1 1.15704    1.84582      37.3154
  1.44   1 0.82873    1.7158       51.6994


  0.14   2 2.00649    2.63574      23.8736
  0.24   2 2.41779    2.79045      13.3548
  0.34   2 2.51286    2.87834      12.6978
  0.44   2 2.42112    3.07337      21.2228
  0.54   2 2.52272    3.20749      21.3492
  0.64   2 2.61083    3.33523      21.7198
  0.74   2 2.6786     3.3962       21.1295
  0.84   2 2.72332    3.42548      20.4981
  0.94   2 2.67135    3.36765      20.6763
  1.04   2 2.5481     3.23246      21.1714
  1.14   2 2.0927     3.09175      32.3136
  1.24   2 1.87992    2.85794      34.221
  1.34   2 1.39537    2.64874      47.3195
  1.44   2 1.17726    2.35584      50.028


  0.14   3 3.02564    3.89032      22.2264
  0.24   3 3.65869    4.16665      12.1911
  0.34   3 3.80707    4.30467      11.5597
  0.44   3 3.66709    4.54021      19.2307
  0.54   3 3.83012    4.73166      19.0533
  0.64   3 3.92632    4.87302      19.4273
  0.74   3 4.04669    4.99734      19.0231
  0.84   3 3.71761    5.09726      27.0664
  0.94   3 3.60564    4.96507      27.3799
  1.04   3 3.3886     4.702        27.9329
  1.14   3 3.10752    4.41945      29.6854
  1.24   3 2.76002    4.05567      31.9467
  1.34   3 2.05367    3.75584      45.3207
  1.44   3 1.40933    3.34941      57.9231
meaning of centrality bins :
0 : 30-40% 
1 : 20-30% 
2 : 10-20% 
3 :  0-10%
30-40% 

20-30%

10-20%

0-10%

Black points corresponds to Pt extrapolation, colored one to Mt extrapolation.

• y_ptExt_mtExt.gif: