Centauro Jets and Magnetic Field Study
In this study, Centauro Jets reconstructed from tracks and clusters in the Breit frame are analyzed in relation to magnetic field strength and jet energy scale (JES). The impact of magnetic field strength on jet energy resolution and the performance of JES in different detector regions are investigated. The study also explores how track momentum resolution improves at 3.0T and its influence on JES components. Findings suggest a correlation between magnetic field strength, JES, and jet energy resolution. Track component resolution is observed to be worse in the barrel due to low transverse momentum acceptance.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
JES and JER for JES and JER for Centauro Centauro Jets Jets John Lajoie Iowa State University
Centauro Centauro Jets in ECCE Jets in ECCE Jets reconstructed from tracks and neutral clusters in Breit frame Code available at: https://github.com/johnlajoie/CentauroJets Using latest July concept, with fix for BECAL projections https://github.com/ECCE- EIC/fun4all_eicdetectors/commit/a4d93c4d99283e586a6586b14b7e76f8655 2377a Already merged 3/7/2025 ECCE Jets/HF PWG 2
Pythia6, 10x100, Q>10, R=0.8 (20k events) Centauro Centauro Jets for TMD s Jets for TMD s Primary Jets ECCE Tracks + Neutral Clusters Clusters Tracks + Neutral M. Arratia, Y. Makris, D. Neill, F. Ringer, and N. Sato Phys. Rev. D 104, 034005 (2021) /???? ??= ???? This is the transverse momentum of the jet with respect to the scattered quark direction. 3/7/2025 ECCE Jets/HF PWG 3
zJet>0.5 Jet Energy Scale (JES) Jet Energy Scale (JES) Primary Jets Select reconstructed track + cluster jets, matched to a primary jet within ( ) <0.2 3/7/2025 ECCE Jets/HF PWG 4
JES By Detector Region JES By Detector Region < 1.25 > 1.25 3/7/2025 ECCE Jets/HF PWG 5
Magnetic Field Magnetic Field Strength Strength Track momentum resolution improves at 3.0T can we see this improvement in the JES? Track resolution study from C. Fanelli 3/7/2025 ECCE Jets/HF PWG 6
JES By Magnetic Field Strength JES By Magnetic Field Strength <1.25 >1.25 At midrapidity the JER seems to get worse at higher magnetic field. 3/7/2025 ECCE Jets/HF PWG 7
JES Components and Field Strength ( JES Components and Field Strength ( <1.25) <1.25) The track component resolution is worse in the barrel, presumably due to low-pT acceptance. 3/7/2025 ECCE Jets/HF PWG 8
JES Components and Field Strength ( JES Components and Field Strength ( 1.25) 1.25) Very little difference as a function of magnetic field in the forward arm improved track momentum resolution offset by decreased track acceptance? 3/7/2025 ECCE Jets/HF PWG 9
Conclusions Conclusions JES ~0.9, JER ~0.16 for Centauro jets in SIDIS events (Q>10) JES scale low primarily due to neutral component JER driven by fluctuations in neutral component 1.4T vs. 3.0T comparison JER slightly better in the barrel, otherwise little difference Future work Improvements in clustering and cluster matching, should improve JER Optimize cluster energy cut (currently 300MeV on all calorimeters) Work to quantify quality of neutral reconstruction Incorporate PID 3/7/2025 ECCE Jets/HF PWG 10
BACKUP BACKUP 3/7/2025 ECCE Jets/HF PWG 11
1.4T v. 3.0T (Track + Cluster Jets) 1.4T v. 3.0T (Track + Cluster Jets) ECCE 1.4T ECCE 3.0T 3/7/2025 ECCE Jets/HF PWG 12
1.4T v. 3.0T (Track + Cluster Jets) 1.4T v. 3.0T (Track + Cluster Jets) Matched to primary within 0.2 in space 3/7/2025 ECCE Jets/HF PWG 13
1.4T v. 3.0T (Track + Cluster Jets) 1.4T v. 3.0T (Track + Cluster Jets) zJet > 0.5 At higher magnetic field jets have fewer charged constituents. 3/7/2025 ECCE Jets/HF PWG 14
Calo Calo Tracks Tracks Instead of individual clusters, create calo tracks by combining clusters in the calorimeter systems. All clusters used must not have a matching track projection w/in 0.1 Barrel: (BECAL, IHCAL, oHCAL) Forward: (FEMC, LFHCAL) Step 1: seed by EMCal (look in HCAL s) Step 2: seed HCAL1 (look in HCAL2) Step 3: seed HCAL2 (barrel only) Clusters matched w/in 0.2 Combined to make calo track used as constituent 3/7/2025 ECCE Jets/HF PWG 15
