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CERN Accelerating science

LHCb Figures

Latest additions:
2024-06-04
16:48
Anomaly detection for a new trigger line for showers in the muon detectors /LHCb collaboration
To extend the sensitivity of LHCb to long-lived particles, predicted by multiple Standard Model extensions, we aim to use the muon detector as a sampling calorimeter to select showers. To trigger on such events, anomaly detection techniques are developed and their performances quantified. [...]
LHCB-FIGURE-2024-015.- Geneva : CERN, 04 - 12. Fulltext: LHCb-FIGURE-2024-015.plots - ZIP; LHCb-FIGURE-2024-015 - PDF;

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2024-05-28
16:20
B2OC hadronic triggers in Run 3 (TrackMVA and TwoTrackMVA) /LHCb Collaboration
Measurement of TrackMVA OR TwoTrackMVA efficiencies on some representative B2OC hadronic decay from 2024 data. $B_d \rightarrow D (\rightarrow K \pi \pi) \pi$ selection: PIDK of all $K$ $> 5$, of all $\pi$ $< 5$, B2OC Hlt2 generic $B$ hadron NN $>$ 0.9, IPCHI2 of all tracks from $D$ decay $> 6$, IPCHI2 for the $\pi$ from the $B_d$ decay $> 12$ and BPVFDCHI2 of the $D$ $> 80$. [...]
LHCB-FIGURE-2024-014.- Geneva : CERN, 2024 - 6. Fulltext: LHCb-FIGURE-2024-014.plots - ZIP; LHCb-FIGURE-2024-014 - PDF;

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2024-05-28
15:53
TwoTrackKs and TwoKs HLT1 lines invariant mass monitoring plots with early 2024 data /LHCb Collaboration
The documents presents invariant mass plots for $K^0_S$ and $K^0_S$ pairs candidates selected by TwoTrackKs and $TwoKs HLT1 lines on data collected by LHCb on early 2024 data taking..
LHCB-FIGURE-2024-013.- Geneva : CERN, 2024 - 4. Fulltext: LHCb-FIGURE-2024-013 - PDF; LHCb-FIGURE-2024-013.plots - ZIP;

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2024-05-28
15:41
Photon triggers for ultra-peripheral lead-lead collisions in Run 2 and Run 3 /LHCb Collaboration
We present distributions of photon pair candidates in low multiplicity lead-lead collisions using dedicated trigger algorithms implemented in 2018 and 2023 runs. These candidates are typically produced in photon-photon collisions, characterized by a strong angular correlation between the outgoing photons. [...]
LHCB-FIGURE-2024-012.- Geneva : CERN, 2024 - 5. Fulltext: LHCb-FIGURE-2024-012 - PDF; LHCb-FIGURE-2024-012.plots - ZIP;

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2024-05-28
15:35
Primary Vertex resolution with early 2024 data /LHCb Collaboration
This document presents the Primary Vertex resolution of the LHCb detector during the first months of data taking in 2024. Only runs with VELO half-alignment that meet the threshold of 5 $\mu$m in $T_x$ are considered. [...]
LHCB-FIGURE-2024-011.- Geneva : CERN, 2024 - 4. Fulltext: LHCb-FIGURE-2024-011 - PDF; LHCb-FIGURE-2024-011.plots - ZIP;

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2024-05-28
15:18
Charged PID performance in early 2024 data /LHCb Collaboration
This document presents the charged PID performance of the LHCb detector during the first months of data taking in 2024..
LHCB-FIGURE-2024-010.- Geneva : CERN, 2024 - 5. Fulltext: LHCb-FIGURE-2024-010 - PDF; LHCb-FIGURE-2024-010.plots - ZIP;

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2024-05-28
14:55
Alignment and calibration of the LHCb Upgrade detector with early 2024 data /LHCb Collaboration
This document presents the status of the alignment and calibration of the LHCb detector during the first months of data taking in 2024. First results on the alignment of the VELO and SciFi detectors, as well as the calibration of the ECAL are shown..
LHCB-FIGURE-2024-009.- Geneva : CERN, 2024 - 9. Fulltext: LHCb-FIGURE-2024-009.plots - ZIP; LHCb-FIGURE-2024-009 - PDF;

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2024-05-28
14:29
$D^0 \rightarrow K^0_S K^0_S$ mass peaks with early 2024 data /LHCb Collaboration
The document presents the invariant mass plots for the $D^0 \rightarrow K^0_S K^0_S$ decays collected by the LHCb detector during the first months of data taking in 2024. The $D^0$ candidates are required to come from a $D^{* \pm} \rightarrow D^0 \pi^{\pm}$ decay. [...]
LHCB-FIGURE-2024-008.- Geneva : CERN, 2024 - 5. Fulltext: LHCb-FIGURE-2024-008.plots - ZIP; LHCb-FIGURE-2024-008 - PDF;

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2024-05-28
14:01
$B\rightarrow K^{+} J/\psi( \ell \ell) $ with early 2024 data fits and efficiencies /LHCb Collaboration
The document presents the invariant mass distributions of $B^{+}\rightarrow K^{+} J/\psi(\ell\ell)$ collected during the first months of data taking in 2024. The candidates are selected according to the HLT2 turbo lines from the Rare Decays stream..
LHCB-FIGURE-2024-007.- Geneva : CERN, 2024 - 13. Fulltext: LHCb-FIGURE-2024-007 - PDF; LHCb-FIGURE-2024-007.plots - ZIP;

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2024-05-28
13:43
$D^0 \rightarrow h^- h^+$ mass peaks with early 2024 data /LHCb Collaboration
This document presents the invariant mass distributions for the $D^{*+} \to D^0(\to K^- \pi^+) \pi^+$, $D^{*+} \to D^0(\to K^- K^+) \pi^+$ and $D^{*+} \to D^0(\to \pi^- \pi^+) \pi^+$ decays collected by the LHCb detector during the first months of data taking in 2024. The $D^{*+}$ candidates are required to be promptly produced in $pp$ collisions..
LHCB-FIGURE-2024-006.- Geneva : CERN, 2024 - 9. Fulltext: LHCb-FIGURE-2024-006 - PDF; LHCb-FIGURE-2024-006.plots - ZIP;

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