2025-09-05
17:05 |
Performance of the HLT1 parametrised Kalman filter
/LHCb Collaboration
This document presents two figures showcasing the performance of the \texttt{Parameterised Kalman Filter} track fitting algorithm of the first trigger stage (\hltone) of the LHCb experiment. Since the beginning of the proton-proton data-taking campaign in 2025, \hltone includes the \texttt{Parameterised Kalman Filter} for obtaining the best state estimates of tracks traversing the full LHCb detector, using information of all involved tracking subdetectors [...]
LHCB-FIGURE-2025-020.-
Geneva : CERN, 2025 - 2.
Fulltext: main - PDF; LHCb-FIGURE-2025-020 - ZIP;
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2025-09-05
14:08 |
詳細記錄
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2025-08-26
16:09 |
Heavy flavor signals in 2025 OO and NeNe data
/LHCb Collaboration
This document presents invariant-mass spectra showing heavy-flavor and charmonium signals in 2025 OO and NeNe data..
LHCB-FIGURE-2025-017.-
Geneva : CERN, 2025 - 6.
Fulltext: ZIP;
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2025-07-08
15:21 |
Charmless $B\to hh'$ mass distributions in 2024 data
/LHCb Collaboration
The mass distributions of $B\to h^+h'^-$ are reported, where $B$ is a $b$-hadron, $B^0$, $B_s^0$ or $\Lambda_b^0$ or their charge conjugates, and $h, h'$ are pions, kaons or protons. They are obtained from $pp$ collision data collected during 2024 under nominal \lhcb Upgrade~I luminosity conditions. [...]
LHCB-FIGURE-2025-016.-
Geneva : CERN, 2025 - 8.
Fulltext: main-1 - PDF; LHCb-FIGURE-2025-016 - ZIP;
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2025-07-01
16:45 |
$J/\psi$ and $D^{0}$ mass peaks in SMOG2 2024 PbAr runs
/LHCb Collaboration
The dimuon and $K^{\mp}\pi^{\pm}$ invariant mass spectra are reported, using data from PbAr collisions at $\sqrt{s_{NN}}$ = 70.9 GeV, collected by LHCb in its fixed-target configuration in 2024..
LHCB-FIGURE-2025-014.-
Geneva : CERN, 2025 - 4.
Fulltext: main - PDF; LHCb-FIGURE-2025-014 - ZIP;
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2025-04-04
12:12 |
$D^0$ mass peak in SMOG2 2024 $\textit{pp}$ reference runs
/LHCb Collaboration
The $K^-\pi^+$ invariant mass spectra are reported, using data from $p\mathrm{H}_2$, $p\mathrm{D}_2$, $p\mathrm{He}$, and $p\mathrm{Ar}$ collisions at $\sqrt{s_{NN}}=70.9$ GeV, collected by LHCb in its fixed-target configuration in 2024. The gas injection durations are 16 hours for $p\mathrm{H}_2$, 2 hours for $p\mathrm{D}_2$, 4 hours for $p\mathrm{He}$ and 56 hours for $p\mathrm{Ar}$ [...]
LHCB-FIGURE-2025-013.-
Geneva : CERN, 2025 - 2.
Fulltext: ZIP;
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2025-04-04
09:18 |
Prompt and displaced $J/\psi$ from 2024 PbPb collisions
/LHCb Collaboration
This document presents the pseudo-propertime distribution for $J/\psi\rightarrow\mu^{+}\mu^{-}$ candidates from PbPb collisions at $\sqrt{s_{NN}}$ = 5.36 TeV recorded with the LHCb detector in 2024.
LHCB-FIGURE-2025-012.-
Geneva : CERN, 2025 - 3.
Fulltext: main - PDF; LHCb-FIGURE-2025-012 - ZIP;
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2025-03-28
10:36 |
Biased Hit Residual of LHCb SciFi Tracker in 2024
/LHCb Collaboration
The biased hit residual of LHCb SciFi Tracker is studied using high-quality tracks reconstructed from 2024 data. The biased hit residual is obtained from the information of the fitted nodes from track fit [...]
LHCB-FIGURE-2025-011.-
Geneva : CERN, 2025 - 3.
Fulltext: main - PDF; LHCb-FIGURE-2025-011 - ZIP;
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2025-03-25
15:58 |
LHCb SciFi Tracker Hit Efficiency 2024
/LHCb Collaboration
The unbiased hit efficiency as a function of hits in the layer under study, averaged over all layers, for the LHCb Scintillating Fibre tracker for two fills of the LHC from the end of 2024, Fills 10213 and 10310. Long tracks that pass through M0 (nearest to the beampipe) modules, with track positions more than two channels away from the sensor edges [...]
LHCB-FIGURE-2025-010.-
Geneva : CERN, 2025 - 3.
Fulltext: main - PDF; LHCb-FIGURE-2025-010 - ZIP;
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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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