Underlying Event Subtraction for Particle Flow

Approved Detector Performance Plots (click on the plot to get PDF/full-sized PNG)

Figure Abbreviated Caption
click on it to get it The jet energy scale and jet energy resolution as a function of pT, for the CMS HF/Voronoi algorithm, the CMS iterative pile-up algorithm, and the FastJet ρA global rescaled subtraction, within |η| < 1.4.
click on it to get it The jet energy scale and jet energy resolution as a function of pT, for the CMS HF/Voronoi algorithm and the CMS iterative pile-up algorithm, within 1.4 ≤ |η| < 2.
click on it to get it The jet energy scale and jet energy resolution as a function of pT, for the CMS HF/Voronoi algorithm and the CMS iterative pile-up algorithm, within 2 ≤ |η| < 3.
click on it to get it The jet energy scale and jet energy resolution as a function of η, for the CMS HF/Voronoi algorithm, the CMS iterative pile-up algorithm, and the FastJet ρA global rescaled subtraction, and for jets within 50 ≤ pT < 100 GeV/c.
click on it to get it The jet energy scale and jet energy resolution as a function of η, for the CMS HF/Voronoi algorithm, the CMS iterative pile-up algorithm, and the FastJet ρA global rescaled subtraction, and for jets within 100 ≤ pT < 150 GeV/c.
click on it to get it The jet energy scale and jet energy resolution as a function of the relative azimuthal angle between the jet φ and the event plane ΨEP, for the CMS HF/Voronoi algorithm, the CMS iterative pile-up algorithm, and the FastJet ρA global rescaled subtraction, and for jets within 50 ≤ pT < 100 GeV/c.
click on it to get it The jet energy scale and jet energy resolution as a function of the relative azimuthal angle between the jet φ and the event plane ΨEP, for the CMS HF/Voronoi algorithm, the CMS iterative pile-up algorithm, and the FastJet ρA global rescaled subtraction, and for jets within 100 ≤ pT < 150 GeV/c.
click on it to get it The multiplicative ηpT jet energy correction factor for the HF/Voronoi algorithm.
click on it to get it The multiplicative centrality–pT jet energy correction factor, divided by the overall pT-dependence, for the CMS HF/Voronoi algorithm.
click on it to get it The multiplicative electromagnetic fraction–pT jet energy correction factor, divided by the overall pT-dependence, for the CMS HF/Voronoi algorithm. A two-dimensional fit is shown as contour.
click on it to get it The multiplicative ηpT jet energy correction factor for the CMS iterative pile-up algorithm.
click on it to get it The multiplicative centrality–pT jet energy correction factor, divided by the overall pT-dependence, for the CMS iterative pile-up algorithm.
click on it to get it The multiplicative ηpT jet energy correction factor for the FastJet ρA global rescaled subtraction.
click on it to get it The multiplicative centrality–pT jet energy correction factor, divided by the overall pT-dependence, for the FastJet ρA global rescaled subtraction.
click on it to get it Underlying event correlation between the CMS forward hadronic calorimeter (HF) region of 3 ≤ |η| < 5 and midrapidity in a event where the underlying event is dominated by a large second harmonic.
click on it to get it Underlying event correlation between the CMS forward hadronic calorimeter (HF) region of 3 ≤ |η| < 5 and midrapidity in a event where the underlying event is dominated by a large third harmonic.
click on it to get it Input region (shaded) of the underlying event modeling in the CMS HF/Voronoi algorithm. The region corresponds to the CMS forward hadronic calorimeter (HF).
click on it to get it Target regions (shaded) of the underlying event modeling in the CMS HF/Voronoi algorithm. The regions correspond to the (nonprojective) endcap electromagnetic calorimeter (EE) to the forward hadronic calorimeter (HF), 1.479 < |η| < 3, and midrapidity split into three regions to parametrize the physical η variation.
click on it to get it A HYDJET minimum bias event, GEANT simulated and reconstructed using the CMS particle flow algorithm, in its Voronoi diagram segmentation, before any underlying event subtraction.
click on it to get it A HYDJET minimum bias event, GEANT simulated and reconstructed using the CMS particle flow algorithm, in its Voronoi diagram segmentation, after the underlying event subtraction.
click on it to get it A PYTHIA embedded into HYDJET event, GEANT simulated and reconstructed using the CMS particle flow algorithm, in its Voronoi diagram segmentation, after the underlying event subtraction.
click on it to get it Energy transfer (black line) and total energy gain/loss in a PYTHIA embedded into HYDJET event, GEANT simulated and reconstructed using the CMS particle flow algorithm, during the equalization step of underlying event subtraction.
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PDFpdf cms_event_pbpb_v2.pdf r1 manage 32.5 K 2013-06-27 - 14:03 YueShiLai  
PNGpng cms_event_pbpb_v2.png r1 manage 166.4 K 2013-06-27 - 14:05 YueShiLai  
PDFpdf cms_event_pbpb_v2_hf.pdf r1 manage 21.7 K 2013-06-27 - 14:03 YueShiLai  
PNGpng cms_event_pbpb_v2_hf.png r1 manage 51.0 K 2013-06-27 - 14:05 YueShiLai  
PDFpdf cms_event_pbpb_v2_target.pdf r1 manage 21.6 K 2013-06-27 - 14:03 YueShiLai  
PNGpng cms_event_pbpb_v2_target.png r1 manage 58.4 K 2013-06-27 - 14:05 YueShiLai  
PDFpdf cms_event_pbpb_v3.pdf r1 manage 34.2 K 2013-06-27 - 14:03 YueShiLai  
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PNGpng hydjet_mb_event_35642_1.png r1 manage 208.0 K 2013-06-27 - 14:05 YueShiLai  
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Topic revision: r2 - 2013-06-27 - YueShiLai
 
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