Trigger overview

• DBL/HBSM workshop on 15 Nov 2017 2017 trigger overview, 2018 plan
• ATLAS and CMS Trigger chat on 23 Jan 2019
• ATLAS and CMS Trigger chat on 2 Oct 2019 Stream trigger rate etc.

• TDAQ Phase II Performance, Physics Studies & Event Selection Meeting on 24 Aug 2020 Jet/EtMiss and tracks for Run 4 triggers (Steven Schramm)

TGM (Trigger General Meetings)

• MET trigger status and plan on 21 Sep 2016
• 02 Nov 2016 Report on topocluster, track+mht and pufit
• 07 Dec 2016 Report on mu_threshold study
• 26 Jul 2017 A short review of how to use cost mon results
• 15 Nov 2017 A talk on automatic lowest unprescaled triggers list
• 22 Nov 2017 L1Calo filter coefficients and noise cuts at high <μ>
• 01 Jul 2020 News from ID / Unconventional Track Trigger Tracking Group (LLP tracking and MET)
• 22 Jul 2020 Xmon: Trigger rate predictions in the ACR & User-driven web interface
• 19 Aug 2020 MET Trigger Status Report (Jon Burr)
• 10th Round of AthenaMT Validation meeting on 13 Jan 2021 (Jon Burr)
• ATLAS weekly on 8 Feb 2021 Trigger Report
• 17 Mar 2021 MET signature update (Ben Carlson)
• Jet trigger meeting on 3 May 2021 Removing tracks associated to muons in HLT PFlow reconstruction (Jona Bossio)
• ATLAS weekly on 4 May 2021 Missing transverse energy triggers for Run 3 (Claudia Merlassino)
• TGM on 10 Nov 2021 HCW2021 Summary, and Jet/ETMiss Perspectives (Max Swiatlowski)
• TGM on24 Nov 2021 MET trigger report (Ben Carlson)

HCW

• HCW2021 on 3 Nov 2021 MET trigger (Jon Burr)
• HCW2022 on 2 Sep 2022 Jet + MET triggers (Jon Burr)

MCG (Menu Coordination Group) & SCG (Signature Coordination Group) meetings

• 21 Sep 2017 Luminosity leveling
• 2017 Running scenario 17 Jan 2017, Open EB
• Calculation of luminosity loss

Trigger Core Software meetings

• 27 April 2018 MENU and CONFIGURATION
• 27 April 2018 HLTCalo unpacking strategy
• 13 Mar 2020 Trigger EDM (Oleg Kuprash)

• Software Coordination meeting on 2 April 2020 Trigger software validation with ART (Rafał Bielski)

MET trigger meetings

• 25 June 2016 MET rate monitoring software tutorial (Ren-Jie)

• 30 May 2018 L1 efficiency study with ZeroBias data (Allen)
• 1 Aug 2018 Study of SumEt of Random Events In Run 2 (Allen)
• 22 Aug 2018 Study of Correlation between High MET and High SumET in Run 2 Zero-bias Events (Allen).
• 26 Sep 2018 Using FFTs to Fit SumET Distributions in Run 2 Zero-bias Events (Allen)
• 10 Oct 2018 Fit SumET Distributions in Run 2 Zero-bias Events with Two Exponential Sum (Allen)
• 16 Jan 2019 Comparing Run 2 Zero-bias Events in 2015, 2016 and 2017 (Allen)
• 23 Jan 2019 Full Calculated Fit to MET vs μ for Run 2 2015,16,17 Data (Allen).
• 30 Jan 2019 MET Rate vs μ Predictions using Model (Allen)
• 25 April 2019 Empirically Reconstruct the Unbiased METDistribution Using ZeroBias HLT noalg L1XE30and HLT noalg L1XE50 Data (Joseph Corrado & Allen Mincer)
• 25 April 2019 Full Cell Algorithm MET Distribution Calculation compared with Run II Data (Allen)
• 19 June 2019 Full Cell Algorithm MET Distribution Calculation compared with Full Run II Data Set (Allen)
• 5 Feb 2020 W-Z Contribution to High MET tail (Allen)
• PPES meeting on 9 Mar 2020 Understanding ETmiss Trigger Rates in Order to Reduce Them (Allen)
• 13 May 2020 High ETmiss Tail of Various Trigger Algorithms (Allen)
• 24 Jun 2020 W/Z contributions to High ETmiss Tail of Various Trigger Algorithms (Allen)
• 22 Jul 2020 “Jet” Contribution to High ETmiss Tail of Various Trigger Algorithms (Allen)
• 26 Mar 2021 Some Studies of Jets and ETmiss Triggers (Allen)
• 16 Apr 2021 Some Studies of Jets and ETmiss Triggers (Allen)
• 23 Jul 2021 Further Studies of Jets and ETmiss Triggers (Allen)
• 27 Aug 2021 Follow up on Further Studies of Jets and ETmiss Triggers (Allen)
• 4 Oct 2021 Boson Tag Lead-JetPt vs Cell ETmiss (Allen)
• 18 Oct 2021 Lead-Jet PT and Cell ETmiss Relative Directions (Allen)
• 15 Nov 2021 𝜇 dependence of ETmiss (Allen)
• 22 Nov 2021 Responses to questions about 𝜇 dependence of ETmiss Talk (Allen)
• 16 May 2022 ETmiss Resolution due to SumET (Allen)
• 19 Jun 2023 Modeling L1 MET (Allen)
• 3 Jul 2023 Modeling L1 MET Trigger Rates (Allen)
• 21 Aug 2023 L1 SumET Model Sensitivity to Noise Cut Change (Allen)

• ETmiss + PU subgroup meeting on 31 Aug 2020 PU Jets in MET & Balance First Look (Eimear Conroy)

• 6 Feb 2019 MET for Run 3 L1 (Ben)

• 4 Sep 2019 MET Trigger Code Rewrite (Jon)
• 2 Oct 2019 CVF Studies for the MET Trigger (Jon)
• 6 Nov 2019 Track Soft Term Studies (Jon)
• 20 Nov 2019 Track-based Trigger Variants (Jon)
• JetEtMiss meeting on 4 Dec 2019 More plots in tstceil are in the talk.
• 19 FEB 2020 Pufit with PFlow (Jon)
• 19 FEB 2020 A Tracking Study (Jonas)
• 18 Mar 2020 Pufit with PFlow (part 2) (Jon)
• 8 Apr 2020 Pufit with PFlow (part 3) (Jon)
• 8 Jul 2020 Pufit with PFlow (part 4) (Jon)

• 11 Dec 2020 Track Isolation Requirements in PFOs (Jon)

• 13 May 2020 Machine Learning for the MET HLT (Michael Thornton)

• 3 Jun 2020 MET Trigger Performance Exploring Phase II Algorithms (Nicholas Suarez, Ben Carlson)

• 16 Oct 2020 KALMAN Filter for gFEX JWOJ Ootimization (Sara Alderweireldt, Antonia Strubig, Bryan Kortman)
• 30 Oct 2020 Status update on KALMAN Filter for gFEX JWOJ Ootimization (Bryan Kortman)
• 04 Dec 2020 KALMAN Filter Optimization of L1 MET Triggers (Bryan Kortman)
• 22 Jan 2021 Rethinking KALMAN Filter (Bryan Kortman)
• TGM on 24 Feb 2021 Optimization of L1 MET Using Kalman Filter and Machine Learning Techniques. (Bryan Kortman)
• 23 April 2021 Optimization of L1 MET Using Classification. (Bryan Kortman)
• 16 Jul 2021 L1 Algorithm and Rate Studies (Bryan Kortman)
• 23 Jul 2021 L1 Algorithm and Rate Studies (Bryan Kortman)
• 18 Oct 2021 gFEX JWOJ optimisation Status Report (Bryan Kortman)
• 15 Nov 2021 L1 Rate studies update (Bryan Kortman)

• 29 June 2022 Pileup resistant MET with BDT regression in L1Topo (Stephen Roche)

• 4 Jun 2021 MET HLT combination update (Zhelun Li)
• 2 Jul 2021 MET HLT combination update (Zhelun Li)
• 16 Jul 2021 MET HLT combination update (Zhelun Li)
• 13 Aug 2021 MET HLT combination update (Zhelun Li)
• 4 Oct 2021 HLT Neural network studies (Zhelun Li)

• 31 Jan 2022 MET Trigger Updates (Alessandro Ruggiero)
• 4 Apr 2022 TCPufit Optimisation (Alessandro Ruggiero)
• 22 Aug 2022 Some more TCPufit Optimisation (Alessandro Ruggiero)
• TGM 0n 26 Oct 2022 QT: Optimising Pileup suppression in the MET Trigger (Alessandro Ruggiero)

• 02 Mar 2022 ML based HLT MET Trigger (Mohamed Belfkir)
• 13 Jun 2022 Update on the ML-based HLT (Mohamed Belfkir)

• 18 Jul 2022 Pileup resistant MET with BDT regression in L1Topo – Update (Eli Ullman-Kissel)

• 6 Sep 2023 Combined Regression Model for MET (Berit Lunstad, Ben Carlson)

• 2 Oct 2023 MET regression CNN (Tom Yildirim)
• TGM on 6 Dec 2023 MET regression CNN (Tom Yildirim)

HL-LHC

• PPES meeting on 12 Dec 2022 ML learning for MET trigger Use only Calo data (Yiming (Ablet) Abulaiti)
• PPES on 11 Sep 2023 EF tracking for MET trigger (Yiming (Ablet) Abulaiti)

Topocluster

• Jet Etmiss main meeting on 13 Dec 2017 Including calorimeter cells’ time in TopoCluster building
• Constituent/pileup mitigation kickoff meeting on 30 Jan 2018 Including calorimeter cells’ time in TopoCluster building
• Constituent/pileup mitigation kickoff meeting on 30 Jan 2018 Pile Up Mitigation with Wavelets

• MET trigger meeting on 29 Aug 2018 Constituent-level pileup mitigation (Ren-Jie).
• Ideas for FTK trigger usage on 31 Aug 2018 Usage of FTK tracks and topoclusters in MET trigger: Constituent-level pileup mitigation (Ren-Jie).
• Constituent Pileup Mitigation meeting on 7 Sep 2018 Usage of FTK tracks and topoclusters in MET trigger: Constituent-level pileup mitigation(Ren-Jie)

Topocluster, mu_threshold

• TGM 7 Dec 2016 Cell noise thresholds and jet triggers (Steven Schramm)
• TGN 7 Dec 2016 Effect of Mu Threshold to HLT MET Triggers (Takashi Yamanaka)

Algorithm combination

• 22 May 2019 Combination of mhtTST, tcPufit and cell (Jon Burr)

Allen and NYU group:

• 12 Jul 2017
• 4 Oct 2017
• 15 Nov 2017

Daniel, Ben and Pittsburgh group:

• 15 Nov 2017

Moritz

• 15 Nov 2017
• TGM on 10 Jan 2018
• jetEtmiss (offline) on

Pufit related talks

• TGM on 2 Nov 2016 Performance of the optimized “pile-up fit”, algorithm, i.e. EFMissingETFromClustersPUC
• Trigger WS on 01 Feb 2017 PILEUP MITIGATION STUDIES FOR MET TRIGGER: PUFIT
• MET trigger meeting on 22 Feb 2017 MET trigger algorithm comparisons on mc15 high-<μ> samples
• MET trigger meeting on 22 Feb 2017 Plots for L1XE > 60 GeV
• MET trigger meeting on 22 Mar 2017 Updates to PUfit algorithm, optimization and validation on mc15 high-<μ> samples
• HL-LHC Jet/Etmiss meeting on 18 May 2017 Borrowing ideas from the HLT to significantly improve offline ETmiss performance at high pileup
• MET trigger meeting on 7 Jun 2017 Adapting the PUfit approach for offline use: Comparisons with offline ETmiss at high pileup
• material for HCW 21017

• MET trigger on 21 Feb 2018 Toy MC study
• MET trigger on 28 Feb 2018 ZeroBias data study
• MET trigger on 07 Mar 2018 JETM10 with L1XE50 study
• TGM on 07 Mar 2018 Summary of above 3 talks and proposal for L1 and offline use
• MET trigger on 14 Mar 2018 Pileup dependence and parameter scan

cellPufit

• 11 Mar 2020 cellPufit from EB reprocessing.

Trkmht, Trktc (FTK) related talks

Old FTK study by Yasuyuki and Manfredi

• FTK & MET at the HLT meeting on 23 Aug 2913
• ATL-COM-DAQ-2014-011 Fast TracKer (FTK) Performance (MET in section 6)

Trkmht by Ren-Jie

• Trigger worshop 2017
• 15 Feb 2017 trkmht with high pileup MC
• 20 SEP 2017 trkmht_FTK first look with reprocessed of EB data.
• Using forwardJVT in the MET Trigger Ren-Jie on 25 OCT 2017 in a MET trigger meeting.
• fJVT status MET trigger meeting on 29 Nov 2017
• Efficiency plot on 29 Nov 2017
• Rate plot on 29 Nov 2017
• 06 Jun 2018 Rate vs Efficiency for trkmht
• 29 Aug 2018 Another usage of FTK tracks in MET trigger: Constituent-level pileup mitigation.
• Contribution to HCW2018

• FTK-HLT Integration meeting on 31 Jan 2019 FTK usage in HLT MET for Run3 (Ren-Jie)
• TGM on 6 Feb 2019 FTK usage in MET triggers (Antonia).
• TGM on 25 April 2019 FTK usage in MET triggers (Antonia).
• 25 April 2019 MET Trigger validation: with FTK (Ben).

• TGM on 4 Mar 2020 Studying Tracking Algorithm Variants for the Run 3 HLT Trigger (Jonas Wuerzinger)
• 11 Mar 2020 Studying Algorithm Combinations (Jonas Wuerzinger)

FTK status end of 2017

• FTK Commissioning Status and Progress talk in a Atlas weekly meeting on 12 Dec 2017

8b4e filling scheme effect

• JetEtmiss meeting on 27 Sep 2017 Two talks

High-mu run 335302 (ATR-16801)

3 individual bunches: data17_13TeV.00335302.physics_Main.merge.DAOD_BCID1.f869_m1831_f869_m1873
Two 56b 8b4e trains: data17_13TeV.00335302.physics_Main.merge.DAOD_BCID2.f869_m1831_f869_m1873
Two 48b 25ns trains: data17_13TeV.00335302.physics_Main.merge.DAOD_BCID3.f869_m1831_f869_m1873

• Ren-Jie's report 4 Oct 2017 in MET trigger weekly meeting
• Santiago and Jon's report 25 Oct 2017 in MET trigger weekly meeting
• Moritz's report TGM on 25 OCT 2017

Pileup Suppression

• ONLINE JET/MET PILEUP SUPPRESSION USING TRACKS presented in the HL-LHC Jet/ETmiss meeting on 15 June 2017

Trigger Efficiency Scale Factors

• Mono-H(bb)
• Mono-V(hadronic)
• VBF H->inv.
• W' -> tau nu MET trigger meeting on 11 Oct 2017
• mono-H(bb) MET trigger meeting on 2 May 2018
• VH(bb) Very good study. MET trigger meeting on 23 May 2018
• SUSY compressed electroweak search MET trigger meeting on 12 Jun 2019
• W' -> tau nu LPX meeting on 25 Jun 2019
• W' -> tau nu MET trigger meeting on 10 Jul 2019
• W' -> tau nu MET trigger meeting on 30 Oct 2019
• H+ -> tau nu MET trigger meeting on 10 Jul 2019
• MET trigger inefficiency with SUSY SS3L and update and another update MET trigger meeting on 27 Jun 2018
• mono-H(bb) MET trigger meeting on 11 Mar 2020
• VBF Displaced DPJ Analysis MET trigger meeting on 07 Sep 2022

Phase II (Run4)

• Higgs Prospects meeting on 7 Sep 2020 VH(bb) and VH(cc) extrapolations (Impact of MET trigger threshold on VHbb-resolved and VHcc).

Luminosity leveling

Talks and documents in "Beam-­‐Beam Effects in Hadron Colliders” March 18th to 22nd, 2013

• Luminosity Levelling Techniques fot LHC talk
• Luminosity Levelling Techniques fot LHC document
• mplementation and experience with luminosity levelling with offset beams talk for LHCb

Van der Meer Scan

• arXiv:2012.07752 (hep-ex) Van der Meer Scan Luminosity Measurement and Beam-Beam Correction

Emittance Scan

• Emittance Scans at P1 Talk in Atlas weekly on 27 March 2018

Non Collision Background

• NCB group public results
• NCB: jet eta-phi plot
• Informal jet cleaning and high-pT jets meeting on 24 Nov 2015 Summary: non-collision background in VBF H→inv triggers (Ben Carlson)
• MET trigger weekly meeting on 29 Jun 2016 Jet Cleaning and EmissT Trigger (Chris Young)
• Atlas weekly on 27 March 2018 Non Collision Background, summary of 2017 and plan for 2018
• ATLAS weekly on 17 Nov 2020 Non Collisions Backgrounds Results from Run-2 and plans for Run-3
• TGM on 19 May 2021 Non-Collision Background and Trigger (STEFANIE MORGENSTERN)
• JetEtMiss on 24 Nov 2021 Tight Event Cleaning to veto non-collision backgrounds (Michael Holzbock)
• MET trigger meeting on 4 Apr 2022 Jet Cleaning MET trigger Update (Edison Weik)
• MET trigger meeting on 11 Apr 2022 Jet Cleaning - MET Trigger Update (Edison Weik)
• MET trigger meeting on 28 May 2022 Jet Cleaning - MET Trigger Update (Edison Weik)
• MET trigger meeting on 11 July 2022 Jet Cleaning - MET Trigger (Edison Weik)
• MET trigger meeting on 25 July 2022 Jet Cleaning and NCB - MET Trigger (Edison Weik)
• TGM on 17 Aug 2022 Qualification Task: BIB and Jet Cleaning for the MET trigger (Edison Weik)

-- KenjiHamano - 2016-09-21