CMS-DP-2013/022
ECAL upgrade performance plots

Abstract: ECAL upgrade performance plots for 2013 EPS Conference

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Figure Caption
pdf version
EEresolvsEnergy.png
Energy resolution of proton-irradiated PBWO4 EE crystals

The plot shows the energy resolutions measured at a test beam for six matrices of proton irradiated PbWO4 EE crystals. The noise contributions have been subtracted from the plots. Fits are made to extract the stochastic and constant terms. The induced absorption indicated for each matrix represents an energy weighted average for the 3x3 array of crystals centred on the hit crystal. The induced absorption in each crystal is taken as the average over the volume of the crystal.
pdf version
500fb.png

pdf version
3000fb.png
ECAL Endcap Longevity

Estimated contributions to the stochastic, noise, and constant terms using a model for the degradation of EE response from crystal radiation damage. Each contribution is degraded separately and plotted. The results are extrapolated from the energy resolutions measured at a test beam with un-irradiated EE crystals. The results correspond to the in situ performance expected from crystals at η=2.2 after 500 (top plot) and 3000 fb-1 (bottom plot) of integrated luminosity. Other aspects, such as the combined resolution with the Preshower, and the effects of tracker material are not included.
Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf 3000fb.pdf r1 manage 15.5 K 2013-08-02 - 15:44 RiccardoParamatti  
PNGpng 3000fb.png r1 manage 22.5 K 2013-08-02 - 15:44 RiccardoParamatti  
PDFpdf 500fb.pdf r1 manage 15.7 K 2013-08-02 - 15:44 RiccardoParamatti  
PNGpng 500fb.png r1 manage 23.3 K 2013-08-02 - 15:44 RiccardoParamatti  
PDFpdf EEresolvsEnergy.pdf r1 manage 19.2 K 2013-08-02 - 15:48 RiccardoParamatti  
PNGpng EEresolvsEnergy.png r1 manage 21.3 K 2013-08-02 - 15:48 RiccardoParamatti  
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Topic revision: r2 - 2013-08-09 - ToyokoOrimoto
 
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