Muon Upgrade Simulations Status Muon Upgrade Goals Muon

Muon Upgrade Simulations Status

Muon Upgrade Goals Muon upgrades aim to achieve the following: Sustain triggering at current thresholds up to |h|=2. 4 Increase offline muon identification coverage to |h|=3. 5 -4 Maintain existing envelope by preventing or addressing aging effects Goal of these studies: Determine what kind of detectors we need and optimize parameters

Organization and People Muon TP editing group Editor: Jay Hauser Contact persons: Consolidation of existing detectors: Cristina Bedoya DT, Armando Lanaro CSC, Gabriella Pugliese - RPC Simulation: Anna Colaleo, Alexei Safonov New detectors: Archana Sharma, Marcello Abbrescia Electronics: Paul Aspell Integration into CMS and infrastructure, costing: TBD Twiki: https: //twiki. cern. ch/twiki/bin/viewauth/CMS/HLLHCmuon. Phase 2

Simulation Goals: Quantify physics gains for each proposed element and groups of elements Determine optimal detector parameters Strategy: Implement “maximum scenario” configuration Optimize parameters for performance Evaluate performance if system is reduced Example: drop hits to emulate “short” ME-0

Deliverables Trigger Stub (Level-1 is what we are worried about): (per station) reconstruction efficiency Also rate to make sure we can sustain them L-1 muon track reconstruction efficiency and single muon trigger rate versus momentum and eta Standalone Offline L 1 muon and L 1 muon + track trigger (muon extension to |h|=4): ME-0 stub reconstruction efficiency and rate Reconstruction efficiency and p. T resolution for “global. Muon” ME-0 + forward pixel extension track Suitably defined fake rate for global. Muons

Technical Implementation Strategy Simulate all new systems at least to sim. Hit level Geometry in CMSSW for old and new HE scenarios Accompanying CMSSW code (det. Ids) Deploy simplified producers to create standard or custom objects (e. g. reco. Muon) needed for the “deliverables” If digis or Rec. Hits are there, e. g. GE-1/1, or easy to make, no need to cut corners Allows skipping complex and tedious steps related to data formats, channel numbering etc. Establish the baseline and produce “deliverables” Continuously improve precision by replacing “shortcuts” with a complete implementation

Geometry Integration Status Global CMS Scenarios in CMSSW (against 6. 2. 0 SLHC 7): Current HE, extended CFCal and HGCal; Shashlyk incompatible with new muon coverage? Outlines: Red- critical deliverables for physics studies (need to be in “standard format”) Orange – important for detector optimization (can be custom) Object ME-0 GE-1/1 GE-2/1 RE-3/1 RE-4/1 Sim. Hits Yes Yes Yes Trigger Digis Custom Yes Yes Standalone Trigger Custom* Custom* Muon+Track System independent (up to h=2. 4): work is being started Digis Bypass Yes Yes Rec. Hit Bypass Yes ? ? Local Custom Yes ? ? Global In progress Yes ? ? High p. T n/a In progress n/a n/a

Critical Tasks and Manpower: ME-0 Deliverables: Global Muons for physics studies Muon efficiency, resolution and fake rate for a suitably optimized detector CMSSW Geometry: Close to being fully integrated (I. Osborne, S. Dildick, M. Maggi, C. Calabria) Digis to global chain in progress Simplified implementation and the overall framework: Northeastern (Nash, Trocino, Barberis) ~ 1. 2 FTE, access to experts (M. Maggi, S. Krutelyov) Some first results available, need to iterate with a realistic forward pixel extension setup Studies critical for obtaining realistic results: Track re-fit with muon hits included - NEU Neutron backgrounds estimation in FLUKA – TAMU-Qatar (A. Castaneda) ~0. 2 FTE Proper segment reconstruction: a small fraction of M. Maggi (INFN-Bari) Short-living background estimation: TBD Optimization of segmentation and design, e. g. extra absorber between layers

Critical Tasks and Manpower: GE 1/1 & 2/1 Deliverables: improved trigger performance, full offline reconstruction Overall very good shape, no extremely critical outstanding issues A strong team in place – INFN-Bari, TAMU and TAMU-Qatar, Ghent, Sofia, Egypt, Saha Remaining studies (not on critical path): Custom reconstruction for high p. T muons (C. Calabria, Archie Sharma, A. Colaleo, S. Krutleyov) and seeding with GEMs (R. Radogna with help of experts: S. Krutelyov, D. Trocino) Proper background estimations for GE-2/1 (A. Castaneda) and implementation in digitizers (B. Pavlov, R. Hadjiiska) with input from other experts (S. Costantini) “Commercialization” of validation (T. Kamon, Y. Assrain et al. ) and tunes to geomenty (S. Banerjee, S. Mukhopadhyay, S. Chowdhury) More critical remaining studies: Completion of the local trigger algorithm implementation – S. Dildick, S. Krutelyov, A. Tatarinov, T. Huang, A. Safonov Proper integration of new features into the full muon Track. Finder - J. Lee, K. Choi (Seoul) starting to interface with Muon TF people with help from experts (S. Dildick, S. Krutelyov, A. S. ) Integration with the L 1 Track Trigger – trying to get this going – S. Krutelyov (TAMU)

Critical Tasks and Manpower: RE 3/1, 4/1 Deliverables: Introduce RE-3/1 and 4/1 into the trigger for improved performance Evaluate performance and detector parameters (granularity and timing) Geometry in CMSSW and digis: Done, completing full integration validation – P. Verwilligen, I. Osborne, M. Maggi, L. Benucci Tasks: Evaluation of background fluxes – S. Costantini; followed by integration for digitization (R. Hadjiska) Completion of the local trigger primitives implementation – P. Verwilligen Proper integration into the full muon Track. Finder – technical implementation has many synergies with GE-1/1 and GE-2/1 Dedicated performance and detector optimization studies (timing and position resolution) – likely based on dimuon triggers and signals like rare B decays to pairs of muons (G. Grenier, S. Aly) Less critical items: Reconstruction – what is the plan?

Simulation Samples Needed Sample Configuration Requirements Events Size Purpose Min. Bias/ No PU Muon detectors, New Central Tracker, Forward pixel extension, HGCal/CFCal 100 M? 50 k. B/ event Standalone trigger rate studies (critical for all simplified results), Track+muon trigger design studies, ME-0 charged track rate estimation (critical as mixing at sim. Hit level) Neutrino gun + high PU Same (forward pixel extension not needed early on) Muon gun + high PU Eta from 1. 1 to 4. 0; fixed p. T values: 1, 3, 5, 10, 20, 100; Same eta and 2<p. T<50 50 k each H->4 mu High PU Forward pixel extension critical 100 k Improvements due to extended coverage In-situ measurements of ME-0 fake rate WH->munu gg Forward pixel extension 100 k In-situ measurements of ME-0 fake rate H-> tau forward pixel extension not critical 100 k Signal sample to motivate standalone muon trigger improvements 100 k? Signal sample for RPC timing studies 100 k? High p. T studies 100 k A “realistic” sample for efficiency benchmarking xxx Bd->mumu Z’ ->mumu Z->mumu M=2, 5, 7 Te. V? Standalone muon trigger studies (with full implementation), Track+muon trigger rate estimation, GEM offline reconstruction optimization, RPC trigger timing studies, ME-0 once more complete implementation is done 5 k. B/ event Efficiency estimates for all studies

Summary To be written in I also want to add a slide or two on aging effects. We have not yet talked about integrating them into simulation, but we should Apologies for people’s names missing, we should add anyone who has not been mentioned and wasn’t.