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LHCb Figures

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2023-05-22
16:44
Clusters distribution of one SciFi quadrant /LHCb Collaboration
Distribution of cluster in T3L0Q3 for Run 256273, fill 8496. Run taken in in global on 2022-11-28. [...]
LHCB-FIGURE-2023-013.- Geneva : CERN, 2023 - 3. Fulltext: LHCb-FIGURE-2023-013 - ZIP; main (8) - PDF;

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2023-05-22
16:41
SciFi cluster distributions for modules T3M45 at different luminosity values /LHCb collaboration
Distribution of SciFi clusters in modules T3M45 (from lumi counters) for Run 253886 with $\mu = 1.6$ (\nth{15} November 2022), and Run 255365 with $\mu = 4.8$ (\nth{24} November 2022). These runs have been taken in in global during mu scans. [...]
LHCB-FIGURE-2023-012.- Geneva : CERN, 2023 - 3. Fulltext: lhcb-figure-2023-012 - PDF; LHCb-FIGURE-2023-012 - ZIP;

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2023-05-22
11:58
Invariant mass spectra of charm hadrons from 2022 data /LHCb Collaboration
The document reports figures about the invariant mass spectra of charm hadrons from $D^0\to K^-\pi^{+}$, $D^{\ast +}\to D^0(\to K^-\pi^+)\pi^+$, $D^{+}\to K^{-}\pi^{+}\pi^{+}$, $D^+_{(s)}\to K^-K^+\pi^+$ and $\Lambda_c^{+}\to p K^{+}\pi^{-}$ decays, using the 2022 data taken by the LHCb upgraded detector. The data is from the HLT2 {\texttt PassThrough} stream and reprocessed with the latest alignment tag $\texttt{ AlignmentV10\_2023\_05\_09\_LHCP}$..
LHCB-FIGURE-2023-011.- Geneva : CERN, 2023 - 8. Fulltext: main (6) - PDF; LHCb-FIGURE-2023-011 - ZIP;

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2023-05-22
10:40
$B^+ \to J/\psi (\to e^+e^-)K^+$ mass plots using 2022 data /LHCb Collaboration
This document presents the first distributions of the invariant mass of the $B^+ \to J/\psi K^+$ decay mode with $J/\psi \to e^+e^-$, reconstructed using 2022 data..
LHCB-FIGURE-2023-010.- Geneva : CERN, 2023 - 6. Fulltext: main (5) - PDF; LHCb-FIGURE-2023-010 - ZIP;

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2023-05-22
10:28
$D^0 \to K^- \pi+$ mass plots at $\textrm{HLT1}$ level with 2022 commissioning data /LHCb collaboration
This figure document presents the first distributions of the invariant mass of the $D^0 \to K^- \pi+$ decay mode, reconstructed by running $\textrm{HLT1}$ offline on 2022 commissioning data..
LHCB-FIGURE-2023-009.- Geneva : CERN, 2023 - 4. Fulltext: LHCb-FIGURE-2023-009 - ZIP; main (4) - PDF;

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2023-05-17
16:19
Invariant mass spectra from SMOG2 $\;p\mathrm{Ar}\;$ and $\;p\mathrm{H}\;$ collisions from 2022 data /LHCb Collaboration
The document reports four figures, showing the invariant mass spectra of four two-body decays from LHCb data collected in November 2022 during the commissioning of the SMOG2 system. Data correspond to collisions of protons with argon (runs 255622 and 255623) at $\sqrt{s_{NN}}=113\,\mathrm{GeV}$ and protons with hydrogen (run 255427) at $\sqrt{s_{NN}}=113\,\mathrm{GeV}$. [...]
LHCB-FIGURE-2023-008.- Geneva : CERN, 2023 - 5. Fulltext: LHCb-FIGURE-2023-008 - ZIP; main (3) - PDF;

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2023-05-17
09:31
RICH Performance Plots - Cherenkov Angle Resolutions for RICH 1 and RICH 2 /LHCb Collaboration
Cherenkov angle resolutions for reconstructed photons detected by the RICH 1 and RICH 2 detectors using early Run 3 Data. The red line represents an asymmetric Gaussian fit to the signal and the blue line represents a polynomial fit to the background. [...]
LHCB-FIGURE-2023-007.- Geneva : CERN, 2023 - 3. Fulltext: main (2) - PDF; LHCb-FIGURE-2023-007 - ZIP;

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2023-05-17
09:27
Throughput impact of Machine Learning inference with NVIDIA TensorRT in the GPU-based first-trigger level of LHCb /LHCb Collaboration
The first stage of the LHCb High Level Trigger is implemented as a GPU application. Machine Learning algorithms are attractive to further extend the physics reach of the application, but inference must be integrated into the existing GPU application and be very fast. [...]
LHCB-FIGURE-2023-006.- Geneva : CERN, 2023 - 5. Fulltext: main (1) - PDF; LHCb-FIGURE-2023-006 - ZIP;

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2023-04-24
10:52
HLT1 TwoTrackKs and TwoKs lines invariant mass plots /LHCb Collaboration
The document reports two figures, showing: - invariant mass for the KS0 candidates collected by TwoTrackKs HLT1 line on Runs 256030 and 256032 - 2D invariant mass spectrum for the KS0 pairs candidates collected by TwoKs HLT1 lines on Runs 256030 and 256032
LHCB-FIGURE-2023-005.- Geneva : CERN, 2023 - 4. Fulltext: main - PDF; LHCb-FIGURE-2023-005 - ZIP;

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2023-04-17
11:50
Dark count rate measurement for SciFi - LHCb commissioning 2022 /LHCb collaboration
We present the measurement of the dark count rate (DCR) per SiPM channel recorded during the commissioning period, from October to November 2022. The DCR at 1 fb$^{-1}$ at 23.5 $^\circ$C is almost equivalent to the DCR at the end of life (50 fb$^{-1}$) when cooled to -40 $^\circ$C. [...]
LHCB-FIGURE-2023-004.- Geneva : CERN, 2023 - 4. Fulltext: main (5) - PDF; LHCb-FIGURE-2023-004 - ZIP;

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