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FMS Days 166-173
For FMS data taken on day 166 -173
www.star.bnl.gov/protected/spin/heppelmann/run1017xxxx/MassPlots.html
Photons is included in the analysis if E_photon>5 (black) or E_photon>8(red)
for small cells and E_photon>2.5 (black) or E_photon> 3 for large cells.
Gains are taken as constant for all cells.
Mass Plots
This analysis includes events from clusters of two and only two photons (described above) within an
angular radius of 0.035 Rad.
det=0 ->Large North
det=1->Large South
det=2->Small North
det=3->Small South
click on above links for plots in a multi page pdf file.
Each plot has a title that includes:
Mr[row#]_c[col#]_[det#]g([current gcorr] ->[suggested gcorr]) ([Energy of trigger peak], [Max Energy])
Plots are 9 per page with
page1:
row0-col0 ..... row0-col2
row1-col0 ...... row1-col2
row2-col0 ...... row2-col2
page2:
row3-col0 .....
etc.
Single Photon Energy Plots
A further set of multipage pdf's is shown for the single photon energy distributions for each cell.
Each reconstructed photons is associated with a particular cell after reconstruction.
Distributions are analyzed with fits from trigger peak energy to maximum energy with a red exponential fit over
that range.
A sub-trigger exponential fit is shown in black.
1) Again gains for all cells are constant.
2) A photon is included in this analysis if E_photon>5 (black) or E_photon>8(red)
for small cells and E_photon>2.5 (black) or E_photon> 3 for large cells.
So what if we Drop the large cell threshold from 30 GeV to 20 Gev
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