Invariant mass distribution for oppositely charged muon candidate pairs that pass various high level triggers (HLT), using 2022 data. Pairs of opposite-sign muons are fitted to a common vertex, using the inner detector track parameters, with a ![]() ![]() ![]() ![]() ![]() |
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Invariant mass distribution for oppositely charged muon candidate pairs that pass various high level triggers (HLT), using 2022 commissioning data. Pairs of opposite-sign muons are fitted to a common vertex, using the inner detector track parameters, with a ![]() ![]() ![]() ![]() ![]() |
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Invariant mass distributions for oppositely charged muon candidate pairs that pass various triggers, using 2018 data Events are reconstructed from pairs of opposite-sign muons passing "Tight" offline quality criteria, which are fit to a common vertex, using the inner detector track parameters, with a ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Invariant mass distributions for oppositely charged muon candidate pairs that pass various triggers. Events are reconstructed from pairs of muons passing "Tight" offline quality criteria, which are fit to a common vertex, using the inner detector track parameters, with a ![]() ![]() |
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Normalised distributions of dimuon opening angle and invariant mass, as reconstructed with the granularity of L1Topo for simulated ![]() ![]() ![]() |
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Normalised distributions of dimuon opening angle and invariant mass, as reconstructed with the granularity of L1Topo for simulated ![]() ![]() ![]() |
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Trigger efficiencies binned in the dimuon invariant mass squared (![]() ![]() ![]() ![]() |
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Estimated Level-1 background and signal yield rates, at a reference instantaneous Luminosity ![]() ![]() ![]() ![]() |
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Offline J/ψ Tracks Reconstructed by Level-2 Tracking pT spectrum for tracks from J/ψ(µ, µ) events reconstructed offline in events with a Level-1 muon trigger. Also shown is the pT spectrum for tracks reconstructed by the Level-2 Inner Detector trigger tracking and matched to the offline track. The dashed line indicates the cut on minimum track pT imposed in both the trigger and offline J/ψ selection. |
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Level-2 Tracking Efficiency with J/ψ Tracks Efficiency for the Level-2 trigger Inner Detector tracking to reconstruct tracks from offline selected J/ψ(µ, µ) in events with a Level-1 muon trigger. |
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Offline J/ψ Tracks Reconstructed by Event Filter Tracking pT spectrum for tracks from J/ψ(µ, µ) events reconstructed offline in events with a Level-1 muon and passing the preceding Level-2 B-physics di-muon trigger. Also shown is the pT spectrum for tracks reconstructed by the Event Filter (Level-3) Inner Detector trigger tracking and matched to the offline track. The dashed line indicates the cut on minimum track pT imposed in both the trigger and offline J/ψ selection. |
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Event Filter Tracking Efficiency with J/ψ Tracks Efficiency for the Event Filter (Level-3) trigger Inner Detector tracking to reconstruct tracks from offline selected J/ψ(µ, µ) in events with a Level-1 muon trigger and passing the preceding Level-2 B-physics di-muon trigger. |
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J/ψ Candidates Accepted by Level-2 B-Physics Trigger Invariant mass distribution for offline reconstructed J/ψ(µ, µ) in events with a Level-1 muon trigger (black points). The same distribution is shown for those J/ψ where both muons are reconstructed by the Level-2 inner detector tracking algorithm (red) and where the J/ψ is found by the Level-2 B-physics di-muon trigger (yellow). To find muons, the B-physics trigger extrapolates inner detector tracks to the muon system and requires matched muon hits. A pair of oppositely charged muons is required by the di-muon trigger. (The efficiency of the B-physics trigger is expected to improve once final calibration of the track extrapolation has been done using data). |
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J/ψ Candidates Accepted by Event Filter B-Physics Trigger Invariant mass distribution for offline reconstructed J/ψ(µ, µ) in events with a Level-1 muon trigger and the preceding Level-2 B-physics di-muon trigger (black points). The same distribution is shown for those J/ψ where both muons are reconstructed by the Event Filter inner detector tracking algorithm (red) and where the J/ψ is found by the Event Filter B-physics trigger for di-muons (yellow). The B-physics trigger at the Event Filter requires each muon to be reconstructed in the Muon System and this explains the drop in efficiency compared to Level-2 (which only requires matching of muon hits to an exptrapolated inner detector track) for this very low pT offline sample. |
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Invariant mass of oppositely charged muon candidate pairs selected by a variety of triggers. The trigger naming convention is explained as follows
EF_2mu4_DiMu trigger was prescaled for some of the later data taking, which is why it collects fewer events. The integral of the histograms will be greater than the total number of candidates collected, since the different trigger samples overlap. |
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As above in a narrower mass range |
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I | Attachment | History | Action | Size | Date | Who | Comment |
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ATL-COM-DAQ-2016-005_dimuon_2015_mass_dist.eps | r1 | manage | 101.1 K | 2016-02-25 - 10:26 | JamesWalder2 | Dimuon invariant mass plots for B-physics triggers from data collected in 2015 in pp collisions at 13 TeV |
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ATL-COM-DAQ-2016-005_dimuon_2015_mass_dist.png | r1 | manage | 1096.7 K | 2016-02-25 - 10:26 | JamesWalder2 | Dimuon invariant mass plots for B-physics triggers from data collected in 2015 in pp collisions at 13 TeV |
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ATL-COM-DAQ-2016-006_fig1a.eps | r1 | manage | 18.2 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig1a.png | r1 | manage | 298.8 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig1b.eps | r1 | manage | 23.6 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig1b.png | r1 | manage | 302.3 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig2.eps | r1 | manage | 21.2 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig2.png | r1 | manage | 300.8 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig3.eps | r1 | manage | 16.3 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2016-006_fig3.png | r1 | manage | 269.0 K | 2016-02-25 - 10:38 | JamesWalder2 | Optimized L1Topo menu for Heavy Flavour physics ATL-COM-DAQ-2016-006 |
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ATL-COM-DAQ-2019-040-dimuon_mass_2018.pdf | r1 | manage | 241.8 K | 2019-03-15 - 12:25 | HeatherRussell | 2018 dimuon invariant mass |
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ATL-COM-DAQ-2019-040-dimuon_mass_2018.png | r1 | manage | 45.4 K | 2019-03-15 - 12:25 | HeatherRussell | 2018 dimuon invariant mass |
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ATL-COM-DAQ-2023-003.data22_13p6TeV.periodE.BphysDelayed.bDimu.pdf | r1 | manage | 244.3 K | 2023-02-03 - 15:07 | VladimirLyubushkin1 | Dimuon invariant mass plot for commissioning data 2022 at 13.6 TeV |
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ATL-COM-DAQ-2023-003.data22_13p6TeV.periodE.BphysDelayed.bDimu.png | r1 | manage | 157.8 K | 2023-02-03 - 15:08 | VladimirLyubushkin1 | Dimuon invariant mass plot for commissioning data 2022 at 13.6 TeV |
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ATL-COM-DAQ-2023-003.data22_13p6TeV.periodFHJ.BphysDelayed.GRL-v109-pro28-03_ignore_TRIGLAR.bDimu.pdf | r1 | manage | 111.9 K | 2023-02-03 - 15:09 | VladimirLyubushkin1 | Dimuon invariant mass plot for data 2022 at 13.6 TeV |
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ATL-COM-DAQ-2023-003.data22_13p6TeV.periodFHJ.BphysDelayed.GRL-v109-pro28-03_ignore_TRIGLAR.bDimu.png | r1 | manage | 134.3 K | 2023-02-03 - 15:09 | VladimirLyubushkin1 | Dimuon invariant mass plot for data 2022 at 13.6 TeV |