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LHCb Figures

Pending /LHCb Collaboration
LHCB-FIGURE-2019-008.- Geneva : CERN, 10

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Smog2 Velo tracking efficiency /LHCb Collaboration
LHCb fixed-target programme is facing a major upgrade (Smog2) for Run3 data taking consisting in the installation of a confinement cell for the gas covering $z \in [-500, -300] \, mm $. Such a displacement for the $pgas$ collisions with respect to the nominal $pp$ interaction point requires a detailed study of the reconstruction performances. [...]
LHCB-FIGURE-2019-007.- Geneva : CERN, 10 - 4. Fulltext: LHCb-FIGURE-2019-007_2 - PDF; LHCb-FIGURE-2019-007 - PDF;

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Background rejection study in the search for $\Lambda^0 \rightarrow p^+ \mu^- \overline{\nu}$ /LHCb Collaboration
A background rejection study has been made using LHCb Simulation in order to investigate the capacity of the experiment to distinguish between $\Lambda^0 \rightarrow p^+ \mu^- \overline{\nu}$ and its main background $\Lambda^0 \rightarrow p^+ \pi^-$. Two variables were explored, and their rejection power was estimated applying a selection criteria. [...]
LHCB-FIGURE-2019-006.- Geneva : CERN, 09 - 4. Fulltext: PDF;

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Tracking efficiencies prior to alignment corrections from 1st Data challenges /LHCb Collaboration
These plots show the first outcoming results on tracking efficiencies, before appli- cation of alignment corrections, as obtained from the 1st data challenges tests. In this challenge, several tracking detectors (the VELO, SciFi and Muon) have been misaligned and the effects on the tracking efficiencies are studied. [...]
LHCB-FIGURE-2019-005.- Geneva : CERN, 2019 - 5. Fulltext: PDF;

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Breakdown of the current Hlt 2 reconstruction throughput rate for the LHCb upgrade. /LHCb Collaboration
This figure shows the breakdown of the current (work in progress) Hlt 2 reconstruction throughput rate for the LHCb upgrade..
LHCB-FIGURE-2019-004.- Geneva : CERN, 2019 - 3. Fulltext: PDF;

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First study of the VELO pixel 2 half alignment /LHCb Collaboration
A first look into the 2 half alignment for the Run 3 Vertex Locator (VELO) has been made. The alignment procedure has been run on a minimum bias Monte Carlo Run 3 sample in order to investigate its functionality [...]
LHCB-FIGURE-2019-003.- Geneva : CERN, 02 - 4. Fulltext: VP_alignment_approval - TAR; VELO_plot_approvals_VPAlignment_v3 - PDF;

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Evolution of the upgrade LHCb HLT1 throughput /LHCb Collaboration
This plot shows the evolution of the HLT1 throughput between autumn 2018 and summer 2019
LHCB-FIGURE-2019-002.- Geneva : CERN, 2019 - 1. Fulltext: PDF;

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Variation of VELO Alignment Constants with Temperature /LHCb Collaboration
A study of the variation of the alignment constants has been made in order to investigate the variations of the LHCb Vertex Locator (VELO) position under different set temperatures between $-30^\circ$ and $-20^\circ$. Alignment for both the translations and rotations of the two halves and of the modules with certain constrains of the modules position was performed for each run that correspond to different a temperature [...]
LHCB-FIGURE-2019-001.- Geneva : CERN, 04 - 4. Fulltext: PDF; Related data file(s): ZIP;

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