4D Tracking and 5D Calorimetry
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America/Los_Angeles
Description
Zoom:
https://stanford.zoom.us/j/92728532486pwd=eHBpcDQ0RjdnZlBjQmRHYW1WRjdFUT09
Password: 059507
Publications:
- https://cds.cern.ch/record/2870326 "Investigating the impact of 4D Tracking in ATLAS Beyond Run 4"
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10:00
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10:30
4D Tracking
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10:00
Tracking clustering, seeding and finding 10m
Tracking performance (purity, efficiency, CPU time)
minimum pT threshold
Large-R tracking -
10:10
Object performance: b-tagging, charm-tagging, tau-tagging, PU suppression, Missing ET, particle flow 10m
- b-tagging
- charm-tagging
- tau-tagging
- PU suppression
- Missing ET
- Particle flow
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10:20
Layout studies 10m
Mechanical, electrical (power), radiation, and data-transmission constraints for either a second layer replacement or a dedicated third timing layer. Consider potential technologies for sensors, electronics, and data-transmission. Study barrel and disk options separately.
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10:00
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10:30
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11:10
5D Calorimetry
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10:30
Vertex t0 reconstruction 10m
- t0 resolution and efficiency
- Applications:
o t0 for HGTD
o PU suppression
o LLP search (displaced photons/jets)
Speaker: Doyeong Kim -
10:40
Single pion studies 10m
- time evolution/structure of pion showers
- response vs time
- neutron component identification
Speakers: Doyeong Kim, Zahra Farazpay (Loisiana Tech)Doyeong
Summary
Last week, we found that cell timing resolution depends on the EM calo layer. This week, I checked the following:- Checked for any dependency on truth pion pT (slide 6, 7)
- Fitted the distribution using the function A + (B/x) + (C/x^2) + (D/x^3) (slide 6, 7)
- Applied the fit functions for calibration (slide 8-12)
Action Items- Update the fit function for RMS vs cell time to be physics-motivated: A + Bsqrt(x) + Cx, where A represents noise, B represents stochastic effects, and C represents a constant term.
- Update the fit function for mean vs cell time to be simple, like exponential.
- Include additional selection criteria to compare averaged distributions with one cell and two cells:
- Currently, the averaged distributions on slides 11 and 12 include different sets of events.
- To ensure a fair comparison, select events with at least one cell after applying the cell E > 2GeV cut.
- Then apply the 2GeV and lower cell E cuts to compare the same set of events with different cuts.
- We expect to see enhanced timing resolution from the lower cell E cut.
- Add an energy resolution plot for validation.
- The same study with Pi0.
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10:50
Space-time structure of hadronic showers 10m
- Response vs time
- overlapping showers
- time-aware GNN PFlow reconstruction
Speaker: Zahra Farazpay (Loisiana Tech) -
11:00
Higgs Factory calorimeter timing studies 10m
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10:30
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11:10
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11:40
Electronics and Sensors: 4D/5D techniques
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11:10
LGDAs 10mSpeakers: Christopher Kenney (SLAC), Julie Segal (SLAC)
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11:20
28nm CMOS TDC ASIC 10mSpeakers: Bojan Markovic (SLAC), Larry Ruckman (SLAC)
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11:30
4D Tracking and 5D Calorimetry electronic concepts 10m
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11:10
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10:00
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10:30