Measurement of the track reconstruction efficiency at LHCb
- Aaij, Roel et al
- arXiv:1408.1251CERN-LHCB-DP-2013-002
 | Tracking detectors and track types reconstructed by the track finding algorithms at LHCb. |
 | \small Invariant mass distributions for reconstructed \jpsi candidates from the 2011 dataset. The solid line shows the fitted distribution for signal and background, the dotted line is the signal component. The subfigures are (a) the VELO method, (b) the T-station method, (c) the long method. For comparison of resolution and signal purity (d) shows the invariant mass distribution of \jpsi candidates obtained with the standard reconstruction at LHCb. |
 | \small Invariant mass distributions for reconstructed \jpsi candidates from the 2011 dataset. The solid line shows the fitted distribution for signal and background, the dotted line is the signal component. The subfigures are (a) the VELO method, (b) the T-station method, (c) the long method. For comparison of resolution and signal purity (d) shows the invariant mass distribution of \jpsi candidates obtained with the standard reconstruction at LHCb. |
 | \small Invariant mass distributions for reconstructed \jpsi candidates from the 2011 dataset. The solid line shows the fitted distribution for signal and background, the dotted line is the signal component. The subfigures are (a) the VELO method, (b) the T-station method, (c) the long method. For comparison of resolution and signal purity (d) shows the invariant mass distribution of \jpsi candidates obtained with the standard reconstruction at LHCb. |
 | \small Invariant mass distributions for reconstructed \jpsi candidates from the 2011 dataset. The solid line shows the fitted distribution for signal and background, the dotted line is the signal component. The subfigures are (a) the VELO method, (b) the T-station method, (c) the long method. For comparison of resolution and signal purity (d) shows the invariant mass distribution of \jpsi candidates obtained with the standard reconstruction at LHCb. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2010 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2011 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | \small Track reconstruction efficiencies for the 2012 data and for weighted simulation. The left-hand column shows the results of the combined method while the right-hand column shows the results of the long method. The efficiency is shown as a function of $p$ (first row), $\eta$ (second row), $N_{\rm track}$ (third row), and $N_{\rm PV}$ (fourth row). The error bars indicate the statistical uncertainties. |
 | Track reconstruction efficiency ratios as a function of $p$ between data and simulation for (left) 2010 data, (right) 2011 data, and (bottom) 2012 data. |
 | Track reconstruction efficiency ratios as a function of $p$ between data and simulation for (left) 2010 data, (right) 2011 data, and (bottom) 2012 data. |
 | Track reconstruction efficiency ratios as a function of $p$ between data and simulation for (left) 2010 data, (right) 2011 data, and (bottom) 2012 data. |