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Beam-spot centroid longitudinal position as a function of the beam separation during
a horizontal scan. November 2012 campaign. Full size version of the plot: ![]() | ![]() |
Luminous region RMS in the vertical plane as a function of the beam separation during
a horizontal scan. November 2012 campaign. Full size version of the plot: ![]() | ![]() |
Overview of the November VdM scans. The horizontal axis of the sketch lists the conditions of the scan (the axis of the scan and the offset), while the size of the peaks indicates the relative size of the observed rate. Full size version of the plot: ![]() | ![]() |
Example of a rate profile fit. This specific case corresponds to BX 721 and scan pair number 0. Full size version of the plot: ![]() | ![]() |
Time dependency of the luminosity (black) and the beam currents product (red). Full size version of the plot: ![]() | ![]() |
Time evolution of the rate profile widths for each BX considered in the analysis. Solid (empty) crosses stands for horizontal (vertical) scans. Full size version of the plot: ![]() | ![]() |
Orbit drift. Difference of the estimated beams orbits at the CMS IP in the horizontal (solid crosses) and vertical (empty crosses). Full size version of the plot: ![]() | ![]() |
Beam-beam deflection. Analytic estimation of the beam beam deflection as a function of the beam separation for parameters typical of fill 3316. Full size version of the plot: ![]() | ![]() |
Pixel clusters relative contribution vs Pile-up. Pileup (upper plot) and relative contributions of different pixel detector regions (down) as a function of time during fill 3236. The drop in luminosity around 10h after the beginning is due to an end-of-fill VdM scan. Full size version of the plot: ![]() | ![]() |
Pixel cluster efficiency. Pixel cluster efficiency drop for various detector components as a function of the instantaneous luminosity. Full size version of the plot: ![]() | ![]() |
Pixel cluster efficiency. Pixel cluster efficiency drop for various detector components as a function of the L1 trigger rate. Full size version of the plot: ![]() | ![]() |
Beam spot position. Distribution of the beam-spot in the longitudinal direction for the 2012 LHC run. Full size version of the plot: ![]() | ![]() |
Cluster multiplicity vs vertex position. Expected number of hits as a function of the longitudinal position of the generated interaction vertex. Full size version of the plot: ![]() | ![]() |
Beam shape fits for the first Van der Meer scan (beam crossing 721) in LHC Fill 2520. Number of pixel clusters as a rate variable, X-plane scan. Full size version of the plot: ![]() | ![]() |
Beam shape fits for the first Van der Meer scan (beam crossing 721) in LHC Fill 2520. Number of pixel clusters as a rate variable, Y-plane scan. Full size version of the plot: ![]() | ![]() |
Beam shape fits for the first Van der Meer scan (beam crossing 721) in LHC Fill 2520. Number of vertices as a rate variable, X-plane scan. Full size version of the plot: ![]() | ![]() |
Beam shape fits for the first Van der Meer scan (beam crossing 721) in LHC Fill 2520. Number of vertices as a rate variable, Y-plane scan. Full size version of the plot: ![]() | ![]() |
Comparison between visible cross sections obtained during the Van der Meer scans. The figure represents the ratio between BCM1F zero-counting and HF zero-counting. Ratio scaled to average to unity. Full size version of the plot: ![]() | ![]() |
Relative contributions of different pixel detector regions to the total cluster count. The figure represents result sfor the forward pixel detector region. Full size version of the plot: ![]() | ![]() |
Representative results from the May 2011 VdM scans Scan in the x plane for beam crossing 2752 using the mean number of pixels per zero-bias trigger as the rate variable. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
Representative results from the May 2011 VdM scans Scan in the y plane for beam crossing 2752 using the mean number of pixels per zero-bias trigger as the rate variable. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
Representative results from the May 2011 VdM scans Scan in the x plane for beam crossing 2752 using the mean number of vertices per zero-bias trigger as the rate variable. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
Representative results from the May 2011 VdM scans Scan in the y plane for beam crossing 2752 using the mean number of vertices per zero-bias trigger as the rate variable. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
Cross section for vertex production plotted as a function of instantaneous singlebunch
luminosity The cross section measurement is based on the online calibration for the luminosity measurement. Full size versions of the plot: ![]() | ![]() |
Response of the HF online system to a single bunch with luminosity in BX0 The plot has been normalized such that the value in BX0 is one. Full size versions of the plot: ![]() | ![]() |
VdM scans using the HF Online method The figure represents the LHC Fill 1753 (May 2011) X scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
VdM scans using the HF Online method The figure represents the LHC Fill 1753 (May 2011) Y scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
VdM scans using the HF Online method The figure represents the LHC Fill 1875 (June 2011) X scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
VdM scans using the HF Online method The figure represents the LHC Fill 1875 (June 2011) Y scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
VdM scans using the offline simple-vertex-counting method The figure represents the LHC Fill 1753 (May 2011) X scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
VdM scans using the offline simple-vertex-counting method The figure represents the LHC Fill 1753 (May 2011) Y scan. Length-scale corrections have not been applied. Full size versions of the plot: ![]() | ![]() |
Calibration correction constants kx (left) and ky (right) for the 1041 bunches in the LHC Fill 1875 (June 2011) scans. Full size versions of the plot: ![]() | ![]() |
Relative luminosity versus bunch crossing Shown for LHC Fill 1089. The instantaneous luminosity during this fill was approximately 2 × 10^{28} cm^{−2} s^{−1}. Beams were colliding only in BX 1. BX’s 892 and 1786, which are not colliding bunches, are used to estimate the background levels for the various methods. Rates are shown for the HF online method as well as the two offline methods described below. In all cases, the luminosities were normalized to unity in BX 1, with the points for the HF online and offline methods displaced slightly so that all three points are visible. Full size versions of the plot: ![]() | ![]() |
Variables and cuts used on offline HF event selection
Full size versions of the plot: ![]() | ![]() |
Van der Meer scan results
The figure represents the LHC fill 1058 X scan. The blue curve is the total double- Gaussian, the red curve is the core Gaussian (sig1), and the green curve is the Gaussian for the tails (sig2). Full size versions of the plot: ![]() | ![]() |
Van der Meer scan results
The figure represents the LHC fill 1058 Y scan. The blue curve is the total double- Gaussian, the red curve is the core Gaussian (sig1), and the green curve is the Gaussian for the tails (sig2). Full size versions of the plot: ![]() | ![]() |
Van der Meer scan results
The figure represents the LHC fill 1089 X scan. The blue curve is the total double- Gaussian, the red curve is the core Gaussian (sig1), and the green curve is the Gaussian for the tails (sig2). Full size versions of the plot: ![]() | ![]() |
Van der Meer scan results
The figure represents the LHC fill 1089 Y scan. The blue curve is the total double- Gaussian, the red curve is the core Gaussian (sig1), and the green curve is the Gaussian for the tails (sig2). Full size versions of the plot: ![]() | ![]() |
Calibration relative to MC normalization
Shown at the five central zero points in the LHC Fill 1089. The different sets of points show the corrections as propagated from the four different pairs of measured x and y beam widths. The uncorrected points for the reverse x and forward y pair are also shown in black. Full size versions of the plot: ![]() | ![]() |
I | Attachment | History | Action | Size | Date | Who | Comment |
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2012_ratio_Feb25.png | r1 | manage | 56.0 K | 2013-12-17 - 14:48 | StoyanStoynev | pixel cluster fractional contributions |
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BXrates.pdf | r1 | manage | 25.9 K | 2012-11-02 - 10:34 | StoyanStoynev | Relative rates (2010) - pdf version |
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BXrates.png | r1 | manage | 9.0 K | 2012-11-02 - 10:33 | StoyanStoynev | Relative rates (2010) |
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CMSLogo.png | r1 | manage | 19.4 K | 2012-11-02 - 11:14 | StoyanStoynev | CMS logo |
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HFOfflineCuts.pdf | r1 | manage | 99.6 K | 2012-11-02 - 10:35 | StoyanStoynev | Offline cuts (2010) - pdf version |
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HFOfflineCuts.png | r1 | manage | 21.8 K | 2012-11-02 - 10:34 | StoyanStoynev | Offline cuts (2010) |
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HFOnFill1753XBX81.pdf | r1 | manage | 17.1 K | 2012-11-02 - 09:43 | StoyanStoynev | VdM scan X May 2011 - pdf version |
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HFOnFill1753XBX81.png | r1 | manage | 14.3 K | 2012-11-02 - 09:42 | StoyanStoynev | VdM scan X May 2011 |
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HFOnFill1753YBX81.pdf | r1 | manage | 17.0 K | 2012-11-02 - 09:44 | StoyanStoynev | VdM scan Y May 2011 - pdf version |
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HFOnFill1753YBX81.png | r1 | manage | 14.6 K | 2012-11-02 - 09:44 | StoyanStoynev | VdM scan Y May 2011 |
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HFOnFill1875XBX45.pdf | r1 | manage | 16.9 K | 2012-11-02 - 09:46 | StoyanStoynev | VdM scan X June 2011 - pdf version |
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HFOnFill1875XBX45.png | r1 | manage | 14.0 K | 2012-11-02 - 09:45 | StoyanStoynev | VdM scan X June 2011 |
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HFOnFill1875YBX45.pdf | r1 | manage | 16.8 K | 2012-11-02 - 09:48 | StoyanStoynev | VdM scan Y June 2011 - pdf version |
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HFOnFill1875YBX45.png | r1 | manage | 14.5 K | 2012-11-02 - 09:47 | StoyanStoynev | VdM scan Y June 2011 |
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NovScan_sketch.png | r1 | manage | 124.6 K | 2013-12-16 - 21:30 | StoyanStoynev | VdM sketch (November 2012) |
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SigmaVisComparison_scaledBCM1FoverHF.png | r1 | manage | 28.0 K | 2012-10-31 - 12:38 | StoyanStoynev | ratio of visible cross sections - BCM1F over HF |
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SigmaVisComparison_scaledPixoverHF.png | r1 | manage | 28.3 K | 2012-10-31 - 12:37 | StoyanStoynev | ratio of visible cross sections - pixel over HF |
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SigmaVisComparison_scaledVtxoverHF.png | r1 | manage | 28.3 K | 2012-10-31 - 12:38 | StoyanStoynev | ratio of visible cross sections - vertex over HF |
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SingleBunchAfterglow.png | r1 | manage | 14.8 K | 2012-11-02 - 09:40 | StoyanStoynev | HF response (2011) |
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VertexCrossSectionFromCounting.pdf | r1 | manage | 14.2 K | 2012-11-02 - 09:39 | StoyanStoynev | Vertex cross-section (2011) - pdf version |
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VertexCrossSectionFromCounting.png | r1 | manage | 6.8 K | 2012-11-02 - 09:39 | StoyanStoynev | Vertex cross-section (2011) |
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VertexOffFill1753XBX817.pdf | r1 | manage | 17.0 K | 2012-11-02 - 09:49 | StoyanStoynev | VdM scan X May 2011 (vertex) - pdf version |
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VertexOffFill1753XBX817.png | r1 | manage | 15.5 K | 2012-11-02 - 09:49 | StoyanStoynev | VdM scan X May 2011 (vertex) |
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VertexOffFill1753YBX817.pdf | r1 | manage | 16.9 K | 2012-11-02 - 09:51 | StoyanStoynev | VdM scan Y May 2011 (vertex) - pdf version |
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VertexOffFill1753YBX817.png | r1 | manage | 13.9 K | 2012-11-02 - 09:50 | StoyanStoynev | VdM scan Y May 2011 (vertex) |
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bb_example.png | r1 | manage | 32.0 K | 2013-12-17 - 14:40 | StoyanStoynev | beam-beam deflection |
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bs_Z_jitter.png | r1 | manage | 5.8 K | 2013-12-17 - 15:01 | StoyanStoynev | beamspot Z jitter |
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graph_pixel_model2b_scanpair0_bx721.png | r1 | manage | 236.2 K | 2013-12-16 - 21:34 | StoyanStoynev | rate profile |
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graph_pixel_scan0_x_bx721.png | r1 | manage | 160.1 K | 2012-11-02 - 11:42 | StoyanStoynev | VdM scan X 2012, Fill 2520, BX 721, pixel |
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graph_pixel_scan1_y_bx721.png | r1 | manage | 178.9 K | 2012-10-31 - 12:32 | StoyanStoynev | VdM scan Y 2012, Fill 2520, BX 721, pixel |
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graph_scan0_x_bx2752_all.pdf | r1 | manage | 239.0 K | 2012-10-31 - 11:11 | StoyanStoynev | VdM scan X 2011 (pixel) - pdf version |
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graph_scan0_x_bx2752_all.png | r1 | manage | 18.1 K | 2012-10-31 - 11:10 | StoyanStoynev | VdM scan X 2011 (pixel) |
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graph_scan1_y_bx2752_all.pdf | r1 | manage | 238.9 K | 2012-10-31 - 11:34 | StoyanStoynev | VdM scan Y 2011 (pixel) - pdf version |
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graph_scan1_y_bx2752_all.png | r1 | manage | 18.2 K | 2012-10-31 - 11:33 | StoyanStoynev | VdM scan Y 2011 (pixel) |
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graph_vertex_scan0_x_bx721.png | r1 | manage | 161.7 K | 2012-10-31 - 12:33 | StoyanStoynev | VdM scan X 2012, Fill 2520, BX 721, vertex |
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graph_vertex_scan1_y_bx721.png | r1 | manage | 171.4 K | 2012-10-31 - 12:33 | StoyanStoynev | VdM scan Y 2012, Fill 2520, BX 721, vertex |
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kValuesJuneScan.pdf | r1 | manage | 14.5 K | 2012-11-02 - 09:52 | StoyanStoynev | Callibration correction constants (June 2011) - pdf version |
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kValuesJuneScan.png | r1 | manage | 6.1 K | 2012-11-02 - 09:51 | StoyanStoynev | Callibration correction constants (June 2011) |
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lumiN2slopes.png | r1 | manage | 10.0 K | 2013-12-16 - 22:08 | StoyanStoynev | lumi and beam current slopes |
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lumi_mult_vs_vtxpos.png | r1 | manage | 16.2 K | 2013-12-17 - 15:04 | StoyanStoynev | cluster multiplicity vs vertex position |
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mean_z_scanPlanex_Apr_new.png | r1 | manage | 15.1 K | 2013-12-15 - 18:16 | StoyanStoynev | Beam-spot centroid (April 2012) |
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mean_z_scanPlanex_Nov_new.png | r1 | manage | 19.7 K | 2013-12-15 - 18:21 | StoyanStoynev | Beam-spot centroid (November 2012) |
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orbitDrift.png | r1 | manage | 21.3 K | 2013-12-17 - 14:36 | StoyanStoynev | orbit drift |
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pixel_afterglow_fill2580_fit_lin.png | r1 | manage | 226.5 K | 2012-10-31 - 12:40 | StoyanStoynev | Cluster count - linear |
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pixel_afterglow_fill2580_fit_log.png | r1 | manage | 250.0 K | 2012-10-31 - 12:41 | StoyanStoynev | Cluster count - liogarithmic |
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pixel_efficiency3.png | r1 | manage | 106.4 K | 2013-12-17 - 14:57 | StoyanStoynev | pixel cluster efficiecny vs ins. lumi |
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pixel_efficiency4.png | r1 | manage | 112.9 K | 2013-12-17 - 14:57 | StoyanStoynev | pixel cluster efficiecny vs L1 trigger rate |
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pixel_frac_barrel.png | r1 | manage | 90.1 K | 2012-10-31 - 12:42 | StoyanStoynev | Relative pixel detector region contributions - barrel |
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pixel_frac_forward.png | r1 | manage | 120.3 K | 2012-10-31 - 12:43 | StoyanStoynev | Relative pixel detector region contributions - forward |
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pull_HF_vs_pixels.png | r1 | manage | 13.9 K | 2013-12-17 - 14:44 | StoyanStoynev | pull HF vs pixels |
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ratio_pileup.png | r1 | manage | 11.8 K | 2013-12-17 - 14:54 | StoyanStoynev | pile up and pixel cluster relative contributions |
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rms_y_scanPlanex_Apr_new.png | r1 | manage | 20.8 K | 2013-12-16 - 21:19 | StoyanStoynev | Lumi region RMS, Y (April 2012) |
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rms_y_scanPlanex_Nov_new.png | r1 | manage | 24.4 K | 2013-12-16 - 21:19 | StoyanStoynev | Lumi region RMS, Y (November 2012) |
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sigmavis.png | r1 | manage | 11.3 K | 2013-12-16 - 21:37 | StoyanStoynev | visible cross-section (fill 3316) |
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vdm_evolution_xsec_pixel.png | r1 | manage | 129.8 K | 2012-10-31 - 12:34 | StoyanStoynev | Evolution of the pixel cluster cross-section |
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vertexVDMxFitScan1.pdf | r1 | manage | 17.0 K | 2012-10-31 - 11:35 | StoyanStoynev | VdM scan X 2011 (vertex) - pdf version |
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vertexVDMxFitScan1.png | r1 | manage | 13.8 K | 2012-10-31 - 11:34 | StoyanStoynev | VdM scan X 2011 (vertex) |
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vertexVDMyFitScan1.pdf | r1 | manage | 16.9 K | 2012-10-31 - 11:35 | StoyanStoynev | VdM scan Y 2011 (vertex) - pdf version |
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vertexVDMyFitScan1.png | r1 | manage | 13.7 K | 2012-10-31 - 11:35 | StoyanStoynev | VdM scan Y 2011 (vertex) |
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vtx_x_ls_scan_plane_x.png | r3 r2 r1 | manage | 151.3 K | 2013-12-17 - 14:21 | StoyanStoynev | length scale calibration (X) |
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vtx_x_ls_scan_plane_x_NEW.png | r1 | manage | 163.8 K | 2013-12-16 - 21:53 | StoyanStoynev | new length scale calibration (X) |
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vtx_y_ls_scan_plane_y.png | r3 r2 r1 | manage | 140.7 K | 2013-12-17 - 14:21 | StoyanStoynev | length scale calibration (Y) |
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vtx_y_ls_scan_plane_y_NEW.png | r1 | manage | 168.2 K | 2013-12-16 - 21:53 | StoyanStoynev | new length scale calibration (Y) |
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width_perBX.png | r1 | manage | 12.7 K | 2013-12-16 - 22:08 | StoyanStoynev | rate profile width vs time |
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x-scan-2010-PAS-fill1058.pdf | r1 | manage | 56.5 K | 2012-11-02 - 10:37 | StoyanStoynev | VdM scan X 2010 - pdf version |
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x-scan-2010-PAS-fill1058.png | r1 | manage | 26.2 K | 2012-11-02 - 10:36 | StoyanStoynev | VdM scan X 2010 |
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xScan_1089_log.pdf | r1 | manage | 47.6 K | 2012-11-02 - 10:41 | StoyanStoynev | VdM scan X 2010 (fill 1089, log) - pdf version |
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xScan_1089_log.png | r1 | manage | 13.1 K | 2012-11-02 - 10:41 | StoyanStoynev | VdM scan X 2010 (fill 1089, log) |
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y-scan-2010-PAS-fill1058.pdf | r1 | manage | 56.9 K | 2012-11-02 - 10:38 | StoyanStoynev | VdM scan Y 2010 - pdf version |
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y-scan-2010-PAS-fill1058.png | r1 | manage | 27.9 K | 2012-11-02 - 10:38 | StoyanStoynev | VdM scan Y 2010 |
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yScan_1089_log.pdf | r1 | manage | 47.6 K | 2012-11-02 - 10:43 | StoyanStoynev | VdM scan Y 2010 (fill 1089, log) - pdf version |
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yScan_1089_log.png | r1 | manage | 13.1 K | 2012-11-02 - 10:42 | StoyanStoynev | VdM scan Y 2010 (fill 1089, log) |
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zero-points-calib-scan-2010-PAS-emit-corrected-fill1089.pdf | r1 | manage | 14.3 K | 2012-11-02 - 10:45 | StoyanStoynev | Calibration relative to MC (2010) - pdf version |
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zero-points-calib-scan-2010-PAS-emit-corrected-fill1089.png | r1 | manage | 19.4 K | 2012-11-02 - 10:44 | StoyanStoynev | Calibration relative to MC (2010) |