vs for all layer-0 and layer-1 pixel clusters pairs vs for all layer-0 and layer-1 pixel cluster pairs for Minbias events. and are defined as layer-0 cluster or minus layer-1 cluster or correspondingly. The black line shows the selection criteria for selecting tracklets candidates at . Cluster pairs within the black line are selected as tracklet candidates. The dependent selection criteria is denoted by this formula:. |
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Occupancy variable used to match MC to data (|η|<1) Distribution of occupancy variable for data. This variable is used to match data and MC. This variable divides events into 20 different occupant categories. |
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Comparison of data and Monte Carlo with tracklets and distributions Distribution of tracklets (left) and (right) from data (black line) and MC (yellow shaded) with tracklets from two range: (top) and (bottom) for the 0-10 centrality events. A pT re-weighting procedure was applied to MC samples. |
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Distribution of tracklets from data and MC Distribution of tracklets from data and MC for the 0-10 centrality events. Top: data (black) and MC (yellow) overlay together. Bottom: Ratio of MC to data. A pT re-weighting procedure was applied to MC samples. |
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Distribution of tracklets from data and MC Distribution of tracklets from data and MC for the 0-10 centrality events. Top: data (black) and MC (yellow) overlay together. Bottom: Ratio of MC to data. A pT re-weighting procedure was applied to MC samples. |
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Distribution of pixel tracks from data and MC Distribution of pixel tracks from data and MC for the 0-10 centrality events. Top: data (black) and MC (yellow) overlay together. Bottom: Ratio of MC to data. A pT re-weighting procedure was applied to MC samples. |
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Distribution of pixel tracks from data and MC Distribution of pixel tracks from data and MC for the 0-10 centrality events. Top: data (black) and MC (yellow) overlay together. Bottom: Ratio of MC to data. A pT re-weighting procedure was applied to MC samples. |
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Number of tracklets from Method 2 vs FCal ET (1<|η|<2) Number of tracklets from method 2 in normalized by coverage vs the forward calorimeter transverse energy distribution. The red points are from signal events, the black points are from flipped events, and the blue points are signal events subtracted by flipped events. |
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Raw tracklets distribution from Method 1 Raw two-point tracklet distribution in 2.76 TeV Pb+Pb collisions from Method 1 for 8 different centrality selections. |
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Distribution of vs Distribution of vs . The error bar on each point shows the combined statistical and systematic uncertainty from the measurement, the shaded band shows the total statisical and systematic uncertainty including the uncertainties on . |
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Charged particle multiplicity collision energy dependence and dependence Top: Collision energy dependence of per colliding nucleon pair, /2, from a variety of measurements in proton-proton and central nuclear nucelar collisions including the 0-6\% reported here for and the previous 0-5 ALICE measurement (point shifted horizontally for clarity). The curves show different expectations for the collision energy dependence of in nuclear nuclear collisions: dotted - results of a Landau hydrodynamics calculation , dashed - a extrapolation of RHIC and SPS data proposed by ALICE, dot-dashed - a logarithmic extrapolation of RHIC and SPS data. Bottom: evaluated over vs for 2 centrality intervals over 0-20 and 5 centrality intervals over 20-80. Error bars represent combined statistical and systematic uncertainties on the \dndetamid\ measurement, the shaded band represents the total systematic uncertainty including uncertainties. The RHIC measurements have been multiplied by 2.15 to allow comparison with the = 2.76 TeV results. } |
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Distribution of vs Distribution of vs $N_{part}$ from ATLAS (circle points). The error bar on each point shows the combined statistical and systematic uncertainty from the measurement, the shaded band shows the total statisical and systematic uncertainty including the uncertainties on . Also shown in the figure are measurement from ALICE (star points), RHIC results averaged over four experiments (square), and PHOBOS results (triangle). RHIC and PHOBOS results are scaled up by a factor of 2.15 to match central ATLAS data. |
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Distribution of vs compared with CGC calculation Distribution of vs from ATLAS (circle points) for 0-6 centrality interval. Shaded band shows the combined systematic and statistical uncertainties. Also shown is the prediction from CGC calculation [arXiv:1011.3591v1 [hep-ph]] for 0-5 (line). |
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vs distribution Left: Top: raw track/tracklet $1/\Nevt dN_{\mathrm{trkl}}/d\eta$ distribution from tracklet Method 1 ( points), tracklet Method 2 (squares) and pixel tracking (blue triangles) for 0-10 centrality events. Middle: corrected tracklet and track distributions (same symbol scheme), bottom: ratio of from the tracklet Method 2 (squares) and pixel tracking ( triangles) to tracklet Method 1 respectively. Right: Final distributions from tracklet Method 1 for eight 10 centrality intervals. Total systematic errors on $1/\Nevt dN_{\mathrm{ch}}/d\eta$ are shown as a shaded band. |
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vs Left: measured by ATLAS at TeV compared to similar measurements over by PHOBOS at RHIC for 19.6 and 200 GeV. Right: The same data as in the other figure, but with the PHOBOS data shifted such that one of the projectiles has the LHC Pb+Pb per-nucleon beam rapidity. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 0-10\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 10-20\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 20-30\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 30-40\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 40-50\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 50-60\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 60-70\% centrality interval. |
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vs from three different methods Distributions of measured by three different methods: Pixel tracking (trigangle), tracklet Method 1(point) and tracklet Method 2(square). Low panel shows the ratio of pixel tracking and Method2 to Method 1 ratio. This shows for 70-80\% centrality interval. |
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Responsible: Main.YujiaoChen
Subject: public
I | Attachment | History | Action | Size | Date | Who | Comment |
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png | a-0.png | r1 | manage | 42.3 K | 2011-06-15 - 19:19 | YujiaoChen | d0 |
png | a-1.png | r1 | manage | 40.4 K | 2011-06-15 - 19:20 | YujiaoChen | delta eta |
png | a-10.png | r1 | manage | 41.8 K | 2011-06-15 - 19:25 | YujiaoChen | Delta phi |
png | a-11.png | r1 | manage | 55.7 K | 2011-06-15 - 19:26 | YujiaoChen | dndeta, 3 methods, cent 1 |
png | a-12.png | r1 | manage | 52.4 K | 2011-06-15 - 19:26 | YujiaoChen | dndeta, 3 methods, cent 2 |
png | a-13.png | r1 | manage | 54.6 K | 2011-06-15 - 21:24 | YujiaoChen | |
png | a-14.png | r1 | manage | 51.6 K | 2011-06-15 - 19:27 | YujiaoChen | dndeta, 3 methods, cent 3 |
png | a-15.png | r1 | manage | 55.4 K | 2011-06-15 - 19:27 | YujiaoChen | dndeta, 3 methods, cent 4 |
png | a-16.png | r1 | manage | 57.0 K | 2011-06-15 - 19:28 | YujiaoChen | dndeta, 3 methods, cent 5 |
png | a-17.png | r1 | manage | 54.0 K | 2011-06-15 - 19:28 | YujiaoChen | dndeta, 3 methods, cent 6 |
png | a-18.png | r1 | manage | 53.1 K | 2011-06-15 - 19:29 | YujiaoChen | dndeta, 3 methods, cent 7 |
png | a-19.png | r1 | manage | 22.0 K | 2011-06-15 - 19:29 | YujiaoChen | occupancy |
png | a-20.png | r1 | manage | 41.0 K | 2011-06-15 - 19:31 | YujiaoChen | Raw |
png | a-21.png | r1 | manage | 42.3 K | 2011-06-15 - 19:31 | YujiaoChen | z0sin(theta) |
png | a-22.png | r1 | manage | 24.7 K | 2011-06-15 - 19:33 | YujiaoChen | |
png | a-23.png | r1 | manage | 38.3 K | 2011-06-15 - 19:33 | YujiaoChen | dndeta ALICE |
png | a-24.png | r1 | manage | 54.7 K | 2011-06-15 - 19:34 | YujiaoChen | dndeta raw, corrected, ratio |
png | a-3.png | r1 | manage | 39.1 K | 2011-06-15 - 19:21 | YujiaoChen | dndeta ratio with error band |
png | a-4.png | r1 | manage | 29.1 K | 2011-06-15 - 19:22 | YujiaoChen | dndeta compared with CGC calculation |
png | a-5.png | r1 | manage | 27.1 K | 2011-06-15 - 19:22 | YujiaoChen | dndeta ATLAS |
png | a-6.png | r1 | manage | 45.0 K | 2011-06-15 - 19:23 | YujiaoChen | dndeta with PHOBOS |
png | a-7.png | r1 | manage | 45.7 K | 2011-06-15 - 19:23 | YujiaoChen | M2 signal, flipped, signal-flip |
png | a-9.png | r1 | manage | 63.7 K | 2011-06-15 - 19:24 | YujiaoChen | Detla phi vs Delta eta for layer-0 and layer-1 pixel clusters |
png | paper_detadphi_v1.png | r1 | manage | 124.1 K | 2011-06-15 - 19:50 | YujiaoChen | |
png | paper_dndetaNpart_v10.png | r1 | manage | 193.4 K | 2011-06-15 - 20:34 | YujiaoChen | |
png | paper_dndeta_v7.png | r1 | manage | 189.3 K | 2011-06-15 - 21:03 | YujiaoChen | |
paper_detadphi_v1.pdf | r1 | manage | 40.6 K | 2011-06-15 - 18:52 | YujiaoChen | ||
paper_dndetaNpart_v10.pdf | r1 | manage | 25.2 K | 2011-06-15 - 18:52 | YujiaoChen | ||
paper_dndeta_v7.pdf | r1 | manage | 40.9 K | 2011-06-15 - 18:53 | YujiaoChen | ||
eps | auxi_d0TrackPix_run169866vsHijing_ReWeight_cent0.eps | r1 | manage | 16.6 K | 2011-06-15 - 19:32 | YujiaoChen | |
eps | auxi_detaM1_Run169866vsHijing_3sigma_Reweight.eps | r1 | manage | 21.0 K | 2011-06-15 - 18:58 | YujiaoChen | |
eps | auxi_dndEtaRatio_errorBand.eps | r1 | manage | 21.0 K | 2011-06-15 - 18:50 | YujiaoChen | |
eps | auxi_dndeta0to6CompareCGC.eps | r1 | manage | 14.8 K | 2011-06-15 - 18:50 | YujiaoChen | |
eps | auxi_dndetaNpartScale_ATLAS.eps | r1 | manage | 13.8 K | 2011-06-15 - 18:57 | YujiaoChen | |
eps | auxi_dndetaNpart_phobos.eps | r1 | manage | 25.0 K | 2011-06-15 - 18:04 | YujiaoChen | |
eps | auxi_dndetaTrklEtM2_allThree_corseBin_Run169866_smallsize.eps | r1 | manage | 133.2 K | 2011-06-15 - 18:51 | YujiaoChen | |
eps | auxi_dphiDetaClus_Run169866_ellipse.eps | r1 | manage | 478.1 K | 2011-06-15 - 18:52 | YujiaoChen | |
eps | auxi_dphiM1_Run169866vsHijing_3sigma_Reweight.eps | r1 | manage | 22.1 K | 2011-06-15 - 18:57 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent0.eps | r1 | manage | 29.7 K | 2011-06-15 - 18:56 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent1.eps | r1 | manage | 28.9 K | 2011-06-15 - 18:56 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent2.eps | r1 | manage | 29.7 K | 2011-06-15 - 18:55 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent3.eps | r1 | manage | 29.6 K | 2011-06-15 - 18:55 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent4.eps | r1 | manage | 29.5 K | 2011-06-15 - 21:17 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent5.eps | r1 | manage | 29.9 K | 2011-06-15 - 18:55 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent6.eps | r1 | manage | 28.7 K | 2011-06-15 - 18:54 | YujiaoChen | |
eps | auxi_eta_pt0MagOff_m1m2tm_3sigma_tm16_2_1_5_cent7.eps | r1 | manage | 28.7 K | 2011-06-15 - 18:54 | YujiaoChen | |
eps | auxi_occupancy_20bins.eps | r1 | manage | 15.6 K | 2011-06-15 - 18:51 | YujiaoChen | |
eps | auxi_rawDndetaM1_Run169866_3sigma.eps | r1 | manage | 31.9 K | 2011-06-15 - 18:54 | YujiaoChen | |
eps | auxi_z0sinTrackPix_run169866vsHijing_ReWeight_cent0.eps | r1 | manage | 16.9 K | 2011-06-15 - 18:53 | YujiaoChen | |
eps | limfrag_comp_v6.eps | r1 | manage | 15.7 K | 2011-06-15 - 18:06 | YujiaoChen | |
eps | paper_dndetaNpart_bottom.eps | r1 | manage | 21.3 K | 2011-06-15 - 18:07 | YujiaoChen |