2025-03-07
15:23 |
Absolute luminosity calibration for $pp$ collisions at $\sqrt{s} = 13$~TeV with beam-gas imaging in Run 2
/LHCb Collaboration
The LHCb experiment has the unique capability to inject gas around the LHC beams near the interaction point in order to directly measure the profile of the two beams, and provide fixed-target collisions. This figure document presents results from the Run 2 $pp$ absolute luminosity calibration at 13 TeV using the beam-gas imaging technique to reconstruct the profiles of the LHC beams..
LHCB-FIGURE-2025-009.-
Geneva : CERN, 2025 - 10.
Fulltext: main (8) - PDF; LHCb-FIGURE-2025-009 - ZIP;
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2025-03-05
15:25 |
PLUME detector performance during the 2024 LHCb data taking campaign
/LHCb Collaboration
The Probe for LUminosity MEasurement (PLUME) detector was installed within the LHCb experiment at the start of Run 3 and serves as the primary luminometer. This document provides an overview of its performance during the 2024 data taking campaign..
LHCB-FIGURE-2025-008.-
Geneva : CERN, 2025 - 8.
Fulltext: LHCb-FIGURE-2025-008 - ZIP; main (7) - PDF;
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2025-03-04
11:02 |
DOROS BPM calibration in Run 2 pp vdM fills using LHCb data
/LHCb Collaboration
The presented figures document the calibration of the DOROS Beam Position Monitors (BPM) at the LHC interaction point IP8 in six $pp$ van der Meer fills in Run 2 using LHCb data. The beam positions are obtained with submicron uncertainties. [...]
LHCB-FIGURE-2025-007.-
Geneva : CERN, 2025 - 31.
Fulltext: main (6) - PDF; LHCb-FIGURE-2025-007 - ZIP;
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2025-03-04
10:59 |
Two-dimensional vdM scans in Run 2
/LHCb Collaboration
The presented figures document the analysis of two-dimensional vdM scans in Run~2, which determines the LHCb reference cross-section of the $pp$-interaction yielding a reconstructed vertex in Velo. The LHCb experiment pioneered such two-dimensional scans to significantly reduce the $x$-$y$ non-factorization systematics, one of the main sources of vdM uncertainties. [...]
LHCB-FIGURE-2025-006.-
Geneva : CERN, 2025 - 25.
Fulltext: main (5) - PDF; LHCb-FIGURE-2025-006 - ZIP;
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2025-03-03
14:42 |
Hadron PID performance in 2024 PbPb data
/LHCb Collaboration
This document presents charged hadron identification efficiencies and misidentification probabilities in 2024 PbPb data..
LHCB-FIGURE-2025-005.-
Geneva : CERN, 2025 - 5.
Fulltext: main (4) - PDF; LHCb-FIGURE-2025-005 - ZIP;
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2025-03-03
10:33 |
Heavy flavor and charmonium signals in 2024 PbPb
/LHCb Collaboration
This document presents invariant- and corrected-mass spectra showing heavy-flavor and charmonium signals in 2024 PbPb data..
LHCB-FIGURE-2025-004.-
Geneva : CERN, 2025 - 6.
Fulltext: main (3) - PDF; LHCb-FIGURE-2025-004 - ZIP;
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2025-02-11
12:13 |
Dark photon search in $\pi^0\to e^+e^-\gamma$ decays
/LHCb Collaboration
This note is dedicated to a figure of the $e^+e^- \gamma$ invariant mass to be shown at the first LHCb workshop about feebly-interacting particles (FIPs) FIPs at LHCb. The aim is to show the performance of LHCb to access dark photon masses below the dimuon mass threshold..
LHCB-FIGURE-2025-003.-
Geneva : CERN, 2025 - 4.
Fulltext: main (2) - PDF; LHCb-FIGURE-2025-003 - ZIP;
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2025-02-05
09:58 |
Background study from BuSca: Insights from October 2024 LHCb data
/LHCb Collaboration
This figure document follows LHCb-FIGURE-2024-036. BuSca is an algorithm designed for long lifetime particle (LLP) searches at 30 MHz, based on downstream reconstructed tracks at HLT1 level, which also provides dedicated HLT2 lines. [...]
LHCB-FIGURE-2025-002.-
Geneva : CERN, 2025 - 6.
Fulltext: main (1) - PDF; LHCb-FIGURE-2025-002 - ZIP;
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2025-02-05
09:48 |
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2024-12-18
13:50 |
Track Momentum Resolution at LHCb in 2024
/LHCb collaboration
The long track momentum resolution is a key metric for evaluating the performance of the tracking system at LHCb. It can be estimated from the mass resolution of reconstructed $J\psi$ candidates. [...]
LHCB-FIGURE-2024-040.-
Geneva : CERN, 18 - 6.
Fulltext: main (3) - PDF; LHCb-FIGURE-2024-040 - ZIP;
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