Task T CMS at LHC Wesley H Smith

Task T – CMS at LHC Wesley H. Smith DOE Site Visit, Madison, WI, September 19, 2011 Subtasks: • Trigger: Regional Calorimeter Trigger, Higher Level Triggers, Trigger Coordination (W. S. ) • Physics Analysis: S. Dasu & D. Carlsmith • Computing: CMS Tier-2, US CMS Production Management (Incl. talk by Dasu w/Physics) • Endcap Muon: Project Management, Chambers & Infrastructure, Alignment (Loveless) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 1

Task T Personnel {changes} • Professors: Duncan Carlsmith, Sridhara Dasu, Matt Herndon, Wesley Smith • Distinguished Scientist: Richard Loveless • Electronics Engineer: Tom Gorski (CMS project) • Associate Scientists: Pam Klabbers, Armando Lanaro, Sascha Savin {Jim Bellinger left} • Assistant Scientist: {Monika Grothe left} • Postdocs: Maria Cepeda, Evan Friis {Jonathan Efron left} • Software Engineers: Dan Bradley, Ajit Mohapatra, Will Maier (CMS project) • System Manager: Steve Rader (50 %, 50% UW) {Matt Radtke left} -- Supports all HEP Computing • Grad. Students: Michail Bachtis, Austin Belknap, Lindsey Gray, Jeff Klukas, Isobel Ojalvo, Ian Ross, Joshua Swanson, {Graduated: Mike Anderson, Kira Grogg, Christos Lazaridis, Jessica Leonard, Marc Weinberg} • Grad. Summer Students: • Technician: Robert Fobes (CMS project) • PSL* Engineers: F. Feyzi, P. Robl, D. Wahl, D. Wenman, A. White (CMS project) • PSL* Draft/Tech: B. Dana, G. Gregerson, D. Grim, J. Johnson, A. Riley, T. Sailor, R. Smith (CMS project) (*UW Physical Sciences Lab: world-class electronic & mechanical engineering & construction) ACTIVE GROUP: over 750 Talks in CMS Meetings between Jan. ‘ 09 – Sept ‘ 11 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 2

Wisconsin Senior Personnel Official CMS Responsibilities Prof. Wesley Smith • • • CMS Trigger Coordinator (07 -12), CMS Trigger Project Manager (94 -07) , CMS Executive Board CMS Management Board, CMS Electronics Systems Steering Committee SLHC Upgrade Management Board, SLHC Peer Review Board Chair US CMS Trigger Level 2 Manager, Project Management Group US CMS Institutional Advisory Board Member, Technical Advisory Board Member Prof. Sridhara Dasu • • CMS Electroweak Physics Co-Convener (07 -09), Upgrade Physics Coordinator (10 -) Online Selection Physics Co-Convener (06 -07), Computing Tier-2 Manager (Wisconsin) SLHC Upgrade Management Board, US LHC Users Organization Secretary US CMS Calorimeter Trigger Level 3 Manager, Institutional Advisory Board Member Prof. Duncan Carlsmith • US CMS Endcap Muon Alignment Task Manager, Elections Committee Co- chair (07 -09) Distinguished Scientist Richard Loveless • CMS Endcap Muon Technical Coordinator (09 -), CMS EMU Project Manager (07 -09), • CMS Muon Upgrade Project Manager), US CMS EMU Deputy Operations Project Manager • US CMS Common Projects Manager (98 -07), US CMS EMU Project Manager (02 -07) Associate Scientist Pam Klabbers • CMS Deputy Trigger Technical Coordinator. CMS Calorimeter Trigger Technical Coordinator, Regional Calorimeter Trigger On-site Operations Manager Associate Scientist Armando Lanaro • CMS Deputy Convener, EMU Detector Performance Group (10 -11), EMU Upgrade Chamber Construction Mgr. CMS EMU Safety Officer, US CMS Level 3 EMU On-site Operations Manager Associate Scientist Sascha Savin • CMS Tau Physics Object Group (POG) Co-convener Assistant Scientist Monika Grothe (Leaving Group) • CMS Conference Comm. (10 -), CMS Forward Physics Convener (07 -08), Electroweak Physics Data Validation W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 3

Wisconsin CMS Contributions Endcap Disks (EMU) • 6 disks ~3500 tons • UW Design & Contract Chamber Installation • 400 EMU Chambers & infrastructure • Gas, Power, Cooling & Signal Cables Calorimeter Trigger • 19 Crates, 2000 boards • Custom ASICs • Sorts objects w/coords Tier-2 Computing Center • Large UW Investment • Leverages GLOW -- Grid Laboratory of Wisconsin CMS Software • Collaboration with UW Condor group to develop CMS Grid Tools W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 4

LHC & CMS operation As of Sept 14: • Prompt recovery from last Technical Stop. β*=1 m commissioned. • New record inst. Lumi: 3. 19 x 1033 cm-2 s-1. • New record in integrated luminosity delivered in single fill (117. 4 pb-1 ) recorded by CMS (113. 4 pb-1) 96. 5% efficiency. Prospects of reaching 3. 5 -4 x 1033 cm-2 s-1. • 3. 15 fb-1 delivered by LHC and 2. 84 fb-1 recorded by CMS. • Possible to reach/exceed 5 fb-1 by end of October. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 5

UW CMS Physics Summary (Talks by Dasu & Carlsmith) Analyses using 2010 dataset • Goal: Firmly establish the Standard Model EWK physics processes • Accomplishments: 9 Papers + 5 Ph. D. s +�� –) (Bachtis/Swanson), Zɣ (Gray), WZ (Klukas) • Measure : Z (e+e–) (Leonard Ph. D. ), Z(�� • Ratios of σ: Z+jets (Lazaridis Ph. D. ), W+jets (Grogg Ph. D. ), ɣ+jets (Anderson Ph. D. ) +�� –) (Bachtis/Swanson) • Early searches: SUSY SS dileptons (Weinberg Ph. D. ), MSSM ϕ(�� Analyses using 2011 dataset • Goal : Dibosons and higgs searches • Accomplishments: Summer Conferences + Winter Publications + 3 Ph. D. s • Diboson cross section: Zγ (Gray Ph. D. ), WZ (Klukas Ph. D. ), ZZ (Ross / Swanson) +�� –) (Bachtis Ph. D. , Swanson) • Low mass SM higgs and MSSM ϕ (�� • High mass SM higgs (ZZ → 4 leptons) (Ross / Swanson) • Other topics: W+dijet and Z+dijet (Ojalvo) Analyses with full 2012 data set • Goal : Definitive higgs search covering full mass range +�� –, Swanson Ph. D. ) and (ZZ, Ross Ph. D. ), morph V+dijet to VH(bb) • Plans: Continue (�� Analysis after restart at 14 Te. V • Goal : Thorough exploration of EWSB mechanism – higgs parameters, WW σ • Plans : Well integrated in the upgrade studies, ensure good trigger & detector Scientists fully involved in analyses: Cepeda/Klabbers/Carlsmith/Dasu/Smith (V+jets), +�� –), Lanaro/Savin/Dasu/Herndon/Smith (VV) Friis/Savin/Dasu/Smith (�� W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 6

Task T: Computing (Talk by S. Dasu) Task-T operates general purpose HEP and CMS specific computing • Dasu provides scientific leadership for the team • Rader supported at 50% for HEP computing HEP Computing (Director of Computing: Rader, Desktop & Login Support) • Serve > 250 users (150 remote/guest users) • Mail, AFS storage, desktop, network, backup, printing services • 24/7 coverage for core services CMS Tier-2, Grid Laboratory Of Wisconsin, Open Science Grid (Manager: Dasu) • Most productive Tier-2 center in all CMS (System Manager: Maier, NSF) • 2500 Cores, >1 PB useable storage, Over 47 M CPU hours served since 2005 • Seamless integration with GLOW and OSG • Responsible for all CMS simulation production (Manager: Mohapatra, NSF) • Responsible for world-wide CMS production • More than half the production done on OSG through 2011 (Mohapatra) • Innovative software development (Bradley) • New tools for analysis (Rapid-response Adaptive Computing Environment) • Smooth scaling of Condor farms to very large sizes, helping all grid facilities • Works within Condor team addressing concerns of FNAL (Tier-1) and Tier-2 sites • CMS Analysis Support (Bradley, Mohapatra, Maier ) • Wisconsin is primary Tier-2 for Higgs, Electroweak, Forward Physics & Trigger Studies W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 7

Task T Endcap Muon Activities (Talk by R. Loveless) Project Management: Dick Loveless • Construction, test, integrate, install & commission 468 CSCs, electronics & infrastructure Endcap Muon maintenance • UW responsibility -- led by UW scientist A. Lanaro, with PSL engineering team ME 4/2 Upgrade • Project Manager, Editor of the Muon section of the Upgrade proposal -- R. Loveless • B 904 Factory Manager – A. Lanaro • Parts procurement – led by Wisconsin Beam Pipe Support & Shielding • Design & production of endcap shielding Operations, Detector Performance, Alignment: • Carlsmith, Lanaro, Loveless, Gray W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 8

Task T: Trigger I Leadership & Responsibility for Trigger Operations & Upgrades CMS L 1 Regional Calorimeter Trigger UW Trigger Scientists/Postdocs • CMS Trigger Coordinator & US CMS Trigger L 2 Manager (Smith) • CMS Deputy L 1 Trigger Coordinator (Klabbers) Klabbers • US CMS L 3 Manager for Calorimeter Trigger (Dasu) • Operations, Hardware, On-Site Management (Klabbers) • UW Hardware diagnostics & repair (Gorski, Fobes -- CMS Project) • CERN Maintenance & testing facilities (Klabbers, Cepeda, Savin) • Online Diagnostics (Klabbers, Cepeda, Friis) Savin • Downloading detailed test patterns (Friis, GS: Ross, Ojalvo ) • Trigger Emulator (Cepeda, GS: Bachtis, Swanson, Belknap) • Online Configuration & Control (Friis) • Trigger Supervisor (Friis, GS: Ross, Ojalvo) Cepeda • Memory Lookup Tables (Dasu, Friis, GS: Bachtis, Swanson) • Configuration & Conditions Data Bases (Friis, GS: Swanson) • Detector Controls System (Cepeda) • Monitor temperatures & voltages (Cepeda, GS: Ross, Ojalvo) • Data Quality Monitoring (Savin, Cepeda) Friis • Online Histograms & Alarms (Savin, Cepeda, GS: Swanson, Belknap) • Offline Histograms & Run Certification (Savin, Cepeda GS: Swanson, Belknap) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 9

Task T: Trigger II CMS Higher Level Triggers, Trigger Coordination SLHC Trigger Upgrade • • US CMS L 1 Trigger Manager & Trigger Upgrade Chapter Editor (Smith) Upgrade Physics Coordinator (Dasu) New Algorithm Design & Simulation • Dasu, Bachtis, Belknap, Ojalvo, Ross • Hardware design & prototyping • Smith, Klabbers, Gorski, Fobes • Firmware Design & Architecture • Gorski & Prof. Kati Compton (ECE), with ECE GS Tony Gregerson, Amin Farmahini-Fararhani, Dan Seemuth W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Klukas UW Trigger Students • CMS Trigger Coordinator (Smith) • UW Trigger Developers/DQM: • Muon: Herndon, Klukas, • τ: Dasu, Bachtis, Swanson Bachtis Swanson Ross Ojalvo Belknap DOE Review: Task T: CMS at LHC - 10

The CMS Level-1 Trigger & Regional Calorimeter Trigger Only calorimeter and muon systems participate in CMS L 1 3<| |<5 | |<3 4 K 1. 2 Gbaud serial links Cu cables e/ , jets, ET , H T , jet counts | |<2. 1 0. 9<| |<2. 4 | |<1. 2 Input: 1 GHz interactions @ 40 MHz beam xings muons Output: 100 k. Hz into Higher Level Triggers in Filter Farm Regional Calorimeter Trigger • • • Receives Trigger Primitives (TPs) from 8000 ECAL/HF towers Finds 28 e/ candidates, creates 14 central tower sums, 28 quality bits, and forwards 8 HF towers and 8 HF quality bits All sent to Global Calorimeter Trigger at 80 MHz on SCSI cables W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 11

Regional Cal. Trigger Crates UW Scientist Pam Klabbers Main RCT Crate RCT Front VME 48 V DC Power 160 MHz Diff. ECL 0. 4 Tbit/s Point-to-point Dataflow RCT Back 18 Operating (26 incl. Spare & Test) crates with custom backplane incorporate algos: e/ , t & Jet Triggers RCT Racks In USC 55 Master Clock Crate (MCC): One crate with 3 custom cards to create & fan-out 160 & 120 MHz clocks, Re. Sync, & Bunch Crossing 0 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 12

Regional Cal. Trigger Cards 2000 Cards built by U. Wisconsin using 5 UW Custom ASICs Receiver Card: Front Electron Isolation & Clock: Adder mezz link cards 1026+390 DC-DC Back 128+32 Receiver Mezz. Card 128+26 18+7 Phase ASIC Clock (18+9 Custom Backpl) Front BSCAN ASICs Oscillator Bar Code PHASE ASICs BSCAN ASICs Bar number EISO Code needed +spares (incl. EISO test SORT setups) ASICs available Input (w/heat sinks) EISO Jet/Summary: Clock Input Clock delay adjust MLUs W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DC-DC Converters Back 18+7 Sort ASICs BSCAN ASICs DOE Review: Task T: CMS at LHC - 13

Trigger Lab Setup at CERN Repair & Test Facility – Prevessin 904 • Stores boards, crates, cables. • Power up and run system tests • Operate in water-cooled rack for extended tests Integration tests • Racks with cooling on a raised floor nearby • Will be used for upgrade tests Storage and Repair • Spare Crates and cards also available for use in testing and replacement of suspect cards • Soldering station, scope, and tool storage • Spare component storage Responsible: • P. Klabbers & M. Cepeda W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 14

Detector Control System (DCS) PD M. Cepeda, GS: I. Ojalvo, I. Ross Main Panel 10 Rack Monitor Cards (RMCs) Panel for each RMC W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Histograms of Quantities Monitored Controls and monitors rack power, current, voltage, temps, and fans: Auto-off for cooling, voltage, current failures, sends SMS/e-mail to experts. Protects Electronics DOE Review: Task T: CMS at LHC - 15

Trigger Supervisor (TS) PD: E. Friis, GS: I. Ojalvo, I. Ross Monitoring Masking W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Configuration Configures and monitors RCT & interface to CMS Run Control Can mask bad channels, monitor links and clocks, view current configuration DOE Review: Task T: CMS at LHC - 16

Data Quality Monitoring (DQM) Sci: A. Savin, PD; Cepeda, GS: Swanson, Belknap Online DQM – Live and Archived Rank and occupancy histograms Online DQM: current data to catch real-time problems (and archived) Offline DQM: post-running, used for data certification (not shown) Standalone: run by RCT on call, larger datasets possible Standalone DQM Real time data/emulator compare W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 17

Trigger Performance Example: 15 Ge. V L 1 Single Electron/Photon Trigger • Use tag & probe with Z→ee • Barrel & endcap shown separately • Sharp threshold curve • High Efficiency on plateau • Calibration adjusted to equalize barrel & endcap W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 18

Physicist Trigger M&O Tasks (all from core program) Change trigger Configuration • Respond to changing beam/detector conditions & physics priorities Study new trigger configurations • Test runs, Monte Carlo studies, data studies Trigger Physics Analysis • Understand detailed impact of trigger on physics Preparation for luminosity increases • Monte Carlo studies of new conditions, validate with present data Operations - 24 x 7 support during running • Rapid Response to problems at point 5 • RCT is first to detect problems with ECAL, HF • Write, test & maintain electronics test programs • Maintain & update bad channel list & run daily checking programs • Run Control maintenance • Trigger data validation and calibration • Online & Offline analysis of rates & efficiencies • Monte Carlo & data trigger simulation maintenance • Continuous validation of trigger using simulation & readout data Major Challenge of rising Luminosity • Already at design capability with 5 E 33 lumi & 50 ns bunches • Need to study & use all the features: H/E, ECAL & HCAL Isolation • Will need to upgrade trigger system sooner W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 19

Upgrade Cal Trig. Algorithms Dasu, Bachtis, Belknap, Ojalvo, Ross • Particle Cluster Finder η HCAL ECAL • Applies tower thresholds to Calorimeter • Creates overlapped 2 x 2 clusters • Cluster Overlap Filter • Cluster Isolation and Particle ID φ • Removes overlap between clusters • Identifies local maxima • Prunes low energy clusters ECAL φ • Jet reconstruction • Sorts particles & outputs the most energetic ones η τ HCAL ECAL • Particle Sorter e/γ η HCAL • Applied to local maxima • Calculates isolation deposits around 2 x 2, 2 x 3 clusters • Identifies particles • Applied on filtered clusters • Groups clusters to jets Δη x Δφ=0. 087 x 0. 087 • MET, HT, MHT Calculation All coded in Firmware & Tested (latency/resources) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 φ • Calculates Et Sums, Missing Et from clusters jet DOE Review: Task T: CMS at LHC - 20

Cal Trig. Efficiencies & Rates (Wisconsin) Current FPGA technologies allow sophisticated cluster algorithms at Lvl-1 which permit fine tuning of energy and isolation cuts. X 4 reduction in rate at 25 pileup events per crossing & improved efficiency Taus Isolated Electrons Upgrade Existing W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Taus Upgrade Existing DOE Review: Task T: CMS at LHC - 21

Cal. Trig. Position Resolution for , & improve markedly Excellent handle for reducing rate using topological triggers. Δη: e Δϕ: e Upgrade Existing Δη: τ Δϕ: τ Upgrade Existing Average 25 pileup events per crossing W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 22

Upgrade RCT Crate (1 of 4) Card in layout Outputs to GCT Crate Output to DAQ Advanced Telecommunications Computing Architecture ATCA μTCA derived from AMC std. Advanced Mezzanine Card Up to 12 AMC slots Spare Slot Sharing I/O Card Cal Trig Processor MCH Cal Trig Processor BU AMC 13 Cal Trig Processor Sharing I/O Card PM 1 Spare Slot PM 2 (u. TCA form factor, Vadatech VT 892 style layout) Clock/Control from TTC Right Sharing Data to neighbor crate (X, R MTP Ribbon) Left Sharing Data to neighbor crate (X, R MTP Ribbon) HCAL/ECAL TPGs from Lisbon o. SLB & Minn. µHTR Cards W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Ethernet Uplink(s) DOE Review: Task T: CMS at LHC - 23

Calorimeter Trigger R&D (Gorski, Fobes & ECE Team) Test Setup for testing Triggering Architecture: § Uses the AUX Card § Link Latency Tests § Backplane Tests W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 24

Calorimeter Trigger Plan: Starting in 2013 Shutdown – Completion 2016 Parallel Operation To DAQ Via HCAL DCC 2 Existing Copper Cables ECAL TCCs per g Cop Regional Calorimeter Trigger Via GCT s Cable ORMs in Exist To DAQ (L C ) To DAQ HCAL HTR Cards To DAQ Via BU “AMC 13” E In CA di L v. Fi be rs Via ECAL DCC HCAL u. HTR Cards Optical Ribbons ECAL TCCs Via ECAL DCC tic Op To DAQ al b Ri ns bo Trigger Primitive Optical Patch Panel (Modular – grows to meet needs) OSLBs W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 EC Modified Existing New A HC AL L O pt i. R ib bo ns SLHC Cal Trigger Processor Cards To DAQ Via BU “AMC 13” DOE Review: Task T: CMS at LHC - 25

Higher Level Triggers Reduce 80 k. Hz L 1 output to 400 Hz running algorithms averaging 40 - 60 ms/event on event filter farm. • Responsibility of Trigger Coordinator (W. Smith) • Optimize HLT & L 1 triggers for any given time/luminosity • Integration of algorithms and code provided by detector physics groups and physics object groups into the trigger code • Creation of trigger tables via representatives from each detector group, each physics group and run coordination • Monitoring of physics performance of the combined online selection • Muon Triggers: Prof. Herndon, GS: J. Klukas • Tau Trigs: Prof. Dasu, Assoc. Sci. Savin, GS: M. Bachtis, J. Swanson, I. Ross • Operational Responsibilities • Study efficiency, purity, acceptance, execution time, data unpacking. 2011 Operations: • Luminosity increased from 2 E 32 to > 3 E 33 (may reach 5!) • 5 E 33 w/ 50 ns bunch crossing is LHC Trigger Design! • Pileup increased from 3 events at beginning of year to 15 recently • 7 New Major Trigger menus kept pace (one more this year for 5 E 33) • Presently 403 trigger paths for target rate of 300 Hz. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 26

UW HEP Computing UW CMS Tier-2 amongst the most productive • 2500 core, 2 PB system integrated with campus (GLOW, CHTC), national (OSG) and world-wide (LCG) grids using Condor technologies serving >150 users • Over 50 K CPU hours per day; 1. 5 PB user and CMS data hosted currently • Primary funding from NSF portion of CMS M&O • Additional funding: NSF grants ITR (2), MRE (2), DISUN and now PIF (2011 -2014) • DOE Support: 1 month of PI (Dasu), 50% Systems Manager (Rader) • DOE support ensures desktop services and opportunistic usage by non-CMS HEP Top of the class in simulations and analysis of all T 2 s Innovative analysis solutions (Bradley and Maier) CMS simulation operations managed by Mohapatra W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 27

UW CMS Physics Summary Analyses using 2010 dataset • Goal: Firmly establish the Standard Model EWK physics processes • Accomplishments: 9 Papers + 5 Ph. D. s +�� –) (Bachtis/Swanson), Zɣ (Gray), WZ (Klukas) • Measure : Z (e+e–) (Leonard Ph. D. ), Z(�� • Ratios of σ: Z+jets (Lazaridis Ph. D. ), W+jets (Grogg Ph. D. ), ɣ+jets (Anderson Ph. D. ) +�� –) (Bachtis/Swanson) • Early searches: SUSY SS dileptons (Weinberg Ph. D. ), MSSM ϕ(�� Analyses using 2011 dataset • Goal : Dibosons and higgs searches • Accomplishments: Summer Conferences + Winter Publications + 3 Ph. D. s • Diboson cross section: Zγ (Gray Ph. D. ), WZ (Klukas Ph. D. ), ZZ (Ross / Swanson) +�� –) (Bachtis Ph. D. , Swanson) • Low mass SM higgs and MSSM ϕ (�� • High mass SM higgs (ZZ → 4 leptons) (Ross / Swanson) • Other topics: W+dijet and Z+dijet (Ojalvo) Analyses with full 2012 data set • Goal : Definitive higgs search covering full mass range +�� –, Swanson Ph. D. ) and (ZZ, Ross Ph. D. ), morph V+dijet to VH(bb) • Plans: Continue (�� Analysis after restart at 14 Te. V • Goal : Thorough exploration of EWSB mechanism – higgs parameters, WW σ • Plans : Well integrated in the upgrade studies, ensure good trigger & detector Scientists fully involved in analyses: Cepeda/Klabbers/Carlsmith/Dasu/Smith (V+jets), +�� –), Lanaro/Savin/Dasu/Herndon/Smith (VV) Friis/Savin/Dasu/Smith (�� W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 28

Z Cross section : 2010 Data J. High Energy Phys. 01 (2011) 080 Jessica Leonard Ph. D. 2011 (Advisor : W. Smith) • Grothe, Lazaridis also contribute to EWK vector boson task force in electron trigger and validation and W, Z measurement in 2010 • New postdoc Cepeda measured W(μν) for Ph. D. from CIEMAT Excellent agreement with NNLO cross section calculations (FEWZ) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 29

W + Jets : 2010 Data CMS PAS EWK-10 -012 Kira Grogg Ph. D. 2011 (Advisor : W. Smith) • Grothe, Lazaridis, Ross and Dasu also contribute • Responsible for signal extraction, efficiency, fits and unfolding 1 jets 0 jets 2 jets 3 jets Matrix elements 2 to n processes clearly needed. Tune Madgraph, Alpgen, Sherpa … W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 30

Z + Jets : 2010 Data CMS PAS EWK-10 -012 Christos Lazaridis Ph. D. 2011 (Advisor : W. Smith) • Grothe, Lazaridis, Ross and Dasu also contribute • Responsible for signal extraction, efficiency, fits and unfolding 1 jets 2 jets 3 jets ≥ 4 jets Again 2 to n procs clearly needed. Besides MEPS + also checking NLO MCs (Blackhat) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 31

γ + Jets : 2010 Data Phys. Rev. Lett. 106 (2011) 082001 Mike Anderson Ph. D. 2011 (Advisor : S. Dasu) • Followed Grogg and Lazaridis procedures but with photons • Also played a role in inclusive photon cross section publications Unpublished Again 2 to n procs clearly needed. Lack of people hampering progress in SM physics W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 32

HPS �� Algorithm : 2010 Data CMS PAS TAU-11 -001 Bachtis, Swanson, Savin, Dasu • Decay mode algorithms HPS and Ta. NC CMS >> Tevatron/ATLAS • Established UW HPS algorithm and analysis techniques for �� physics • Also, new postdoc Friis played a role when in Davis (Ta. NC) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 33

Z to ���� : 2010 Data CMS PAS EWK-10 -013 Bachtis, Swanson, Savin, Dasu • Measure Z to ���� cross section and �� identification efficiency • Necessary precursor to searches for higgs decays in �� modes • Also, new postdoc Friis played a role from Davis Clean Z signals in �� modes enabled cross section measurement + simultaneously extract �� ID efficiency. Significantly better than competition in all respects. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 34

MSSM H to ���� : 2010 Data Phys. Rev. Lett. , 106 (2011) 23180 Bachtis, Swanson, Savin, Dasu • Search for MSSM H to ���� (Dasu: paper co-editor) • New postdoc Friis Ph. D. from Davis Best Limits in the world already with 36 pb– 1. Presented at Moriond & prompt PRL W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 35

Update of H to ���� : 2011 Data CMS PAS HIG-11 -020 Bachtis, Swanson, Friis, Savin, Dasu • Continue search for MSSM H to ���� and add SM H to ���� • Presented in EPS, updated for SUSY conference (Dasu: co-editor) • Much better significance than ATLAS results due to HPS + UW analysis Continuing to dominate H to ����. Further improvements to get ���� close to ɣɣ sensitivity! W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 36

ZZ to 4 leptons : 2011 Data CMS PAS EWK-11 -010 Swanson, Ross, Bachtis, Savin, Dasu • Presented in EPS 2011 • Responsible for adding �� channels and cross section MLL fit to 4 -leptons ZZ cross section is the lowest pp cross section measured to date. Important SM measurement. Search for a. TGCs and resonances decaying to ZZ (H) Additional drops in the bucket from addition of �� channels (using all lepton flavors) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 37

H to ZZ to 2 l 2�� : 2011 Data CMS PAS HIG-10 -013 Swanson, Ross, Bachtis, Savin, Dasu • Presented in Lepton-Photon 2011 • Primary analysis responsibility with UW (Savin paper editor) Moving from 2 l 2�� to all 4 lepton flavors, applying improved isolation, ZZ experience … W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 38

Dileptons + Jets + MET : 2010 Data J. High Energy Phys. , 06 (2011), 77 Marc Weinberg Ph. D. 2011 (Advisor : Smith) • Work with Savin – contribution to trigger • Independent measurement of top in OS dilepton ++ mode • Search for SUSY signature in SS dilepton ++ mode As jets+MET excludes bulk of m 0 -m½ plane, SS dileptons (with �� ) become important … W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 39

J/psi CMS was designed to well measure muons as well as electrons. Graduate student Gray, Assoc. Sci. Lanaro and Senior Sci. Loveless have been involved in the study of low invariant mass dimuon pairs. Gray has developed a fit Mass spectrum of dimuon pairs in CMS to extract J/Ψ polarization. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 40

Z gamma Graduate student Lindsey Gray, Assoc. Scientist Lanaro, and Prof. Dasu used 2010 data to extract Zgamma signal in dimuon channel, and set limits on anomalous triple gauge boson couplings. M(llgamma) vs M(ll) scatter plot showing Z+FSR signal peaking at M(ll) =M(Z). Limits on anomalous triple gauge boson couplings, which are zero in the SM. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 41

WZ Graduate student Jeff Klukas and Prof. Herndon have just made the first measurement of the standard model WZ production cross section using 1 fb 1 data from 2011. Klukas thesis (in preparation) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 42

Measurement of WZ First measurement of the WZ cross section at 7 Te. V Developed the WZ software framework and used Wisconsin’s computing resources for lowlatency MC sample production and for skimming and analysis of MC and data Provided lepton efficiency measurements Preparing for winter publications with full 2011 data CMS-PAS-EXO-11 -041 CMS-PAS-EWK-11 -010 CMS AN-2011/333 CMS AN-2011/259 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 43

Exotic WZ Resonance Search A resonance in WZ production could indicate a W’ (GUTs and extra dimension models) or a technirho (technicolor models) Placed world-best limits on cross sections for both W’ and technirho Work has generated interest from theorists; currently working to extend the search range to accommodate higher-mass W’ W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 44

Wjj-dijet mass distribution Assoc. Sci. Grothe co-convenes an effort to study the m(jj)distribution in Wjj following an indication of a feature in CDF data. Res. Assoc. Cepeda Hermida, Res. Assoc. Efron and Prof. Carlsmith are involved in these studies. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 CDF D 0 R A IN M I L P E R CMS R A IN M I L E R P CMS DOE Review: Task T: CMS at LHC - 45

Zjj-dijet mass distribution Grad. Student Ojalvo has begun studies of the dijet mass distribution in Zjj events. These studies complement the Wjj dijet mass distribution and will form a basis for ZZ and ZH analyses. After b-tagging W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 M(ll) Pt Jet 1 Before b-tagging M(jj) M(lljj) DOE Review: Task T: CMS at LHC - 46

Physics Plans – Driven by Ph. D. s Standard Model Measurements • All students do a SM measurement in addition to searches • Complete V+Jets papers (5 fb– 1) • Diboson measurements (5 fb– 1) Higgs Sector • Continue the lead set in ττ mode (Bachtis 5 fb– 1 and Swanson 20 fb– 1 theses) • Bolster ZZ by expanding to all 4 lepton flavors (Ross 20 fb– 1 thesis) • Add VH(bb) by capitalizing on V+Jets experience (Ojalvo 20 fb– 1 thesis – 2013+) Other Searches • Anomalous triple gauge boson couplings (Gray 5 fb– 1 thesis ) • Technicolor and W’ to WZ (Klukas 5 fb– 1 thesis) • Same-sign dileptons including τ modes Scientists fully involved in analyses: Cepeda/Klabbers/Carlsmith/Dasu/Smith (V+jets), Friis/Savin/Dasu/Smith (τ+τ–), Lanaro/Savin/Dasu/Herndon/Smith (VV) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 47

Wisconsin EMU Personnel Dick Loveless -- Distinguished Scientist • • EMU Technical Coord. (was L 2 for EMU Construct. & Common Proj. ) EMU L 2 Deputy Manager, US-CMS Election Committee – Co-chair Project Manager for ME 4/2 CSC Upgrade Editor – CMS Muon Upgrade Proposal Armando Lanaro -- Associate Scientist Gray • EMU Field Technical Coord. – responsible for all CSC operations • EMU Safety Officer • CSC Upgrade Factory Manager Duncan Carlsmith – Professor • Leader of Endcap Alignment task force • CSC data quality monitoring operations Lanaro (Jim Bellinger -- Assoc. Scientist) • EMU Alignment Readout & Analysis • To Ice Cube due to funding reductions Lindsey Gray -- Grad. Student • EMU CEO (CSC Expert Operator) • serves weekly shifts operating EMU • Data Validation W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 Loveless Carlsmith DOE Review: Task T: CMS at LHC - 48

Endcap Muon System 473 Cathode Strip chambers • Typical sizes -- 1. 5 m x 1. 8 m, 3. 3 m x 1. 3 m • Typical weights – 200 kg to 400 kg Large number of electronics boards • • • CFEB (strips) – 2268 boards AFEB (wires) -- 11448 boards Trigger mother board -- 473 boards Data mother board -- 473 boards Many others – low voltage, high voltage, monitoring etc. Most boards have FPGAs (need programming via firmware) • Flexibility – make changes without access • New maintenance problem (downloading firmware) W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 49

CSC Maintenance Mechanics & infrastructure • Wisconsin installed the mechanics of CSC system and is responsible their operations • Maintenance on such an extensive system difficult • Armando is Field Technical Coordinator – crucial position • Responsible for all mechanical/service parts of CSC system • Armando keeps the system operating • PSL engineers available for consulting and design Example – cooling leak • • In Oct ‘ 09 a small bushing cracked and caused a leak CMS contains over 400 such bushings CMS decided to do an emergency opening during Xmas ‘ 09 Dick , Armando, and Dan led a team of 6 Polish techs to replace all 400 bushings in a two-week period W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 50

CSC Performance Typical Cosmic Run • Each muon shows as a one dot in each disk • Gaps show dead chambers or boards • More than 98% of chambers are working • More than 99% of channels are working W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 51

m+m- Spectrum CMS Muon Systems have performed extremely well • Cleanly resolve the Upsilon peaks • BR ( →m+m-) ~ 6 x 10 -6 • ME 1/1 resolution: 80 m • Other CSCs: 130 -200 m • Segment recon. eff. = 97% • Trigger primitive eff. = 97% • Live channel eff. = 98% W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 52

Addition of ME 4/2 chambers Requirements for Forward Muon System • Sufficient redundancy to reduce background Bremsstrahlung, neutrons, halo muons, etc. Chamber efficiencies (gaps, dead electronics, etc. ) • Good enough resolution to match Tracker tracks Multiplicity increasing faster than expected Need 4 stations of chambers as luminosity increases ME 4 chambers were descoped at the beginning of the construction project ME 4/1 chambers recovered using contingency ME 4/2 are now being constructed, install during the 2013, 2014 shutdown W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 53

CSC Upgrade Scope • Original design unfinished – ME 4/2 not built • 72(67) ME 4/2 chambers to complete system • Increase redundancy of system – 3 year run without access to do repairs • Efficient triggering at high luminosities • New digital CFEB boards for ME 1/1 (part of M&O) • Increased capacity for data rate • Ungang the ME 1/1 strips – 7 CFEBs per chamber instead of 5 • 72 New Datamother (DMB) boards • Replace of 72 ME 1/1 Trigger Mother Boards (M&O) • Improve triggering for = 2. 1 to 2. 4 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 54

Plan for Production Assembly in B 904 factory at CERN • ~1000 m 2 space with good services (power, gas, etc. ) • CMS has allocated this area for the CSC production and provided significant infrastructure Shipped tooling from Fermilab • All items assembled and operating Set up CSC factory during 1 st half 2011 • • Armando Lanaro is the factory manager CMS has allocated ~ 1 -2 FTE techs to help us Good participation by Russian, Chinese groups Now constructing 3 prototypes W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 55

January 2011 June 2011 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 56

ME 4/2 Collaboration US Institutes, FNAL, PNPI, IHEP Beijing, CERN, Dubna • US built the small-η chambers, parts for other (non-ME 1/1) chambers, most of electronics • Supplying expertise, technical support, project leadership, students • PNPI assembled and tested ME 2/1, ME 3/1, ME 4/1 chambers • Supplying expert manpower (built CSC at LHCb and CMS) - (ME 4/2 Project Engineer). Established base agreement for 3 FTE/year • IHEP (built the ME 1/2 and ME 1/3) is contributing to the Project by providing technical manpower, students and physicist supervision • CERN provides host support, infrastructure, technical facilities, coordination logistics, factory personnel • Dubna has mechanical responsibility for ME 1/1 electronics update • Important participation in ME 1/1 -ME 4/2 coordinated effort at UXC Most of the factory manpower is non-US, and highly experienced in building wire chambers W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 57

ME 4/2 Production Honeycomb Panel Status • Vendor delay of ~ 6 months Other Parts Status • All other chamber parts ordered, many delivered Factory Status • Assembling 3 prototypes -- all tooling working fine Schedule (revised) • • Receive first panels at CERN in Apr ‘ 12 Manufacture 4 chambers per month Complete 1 st endcap (31 chambers) by Feb ‘ 13 Complete 2 nd endcap (36 chambers) by end of ‘ 13 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 58

Winding Panels • About 1000 50μm thick Au. W wires are wound on the anode panel with a ~3. 16 mm pitch. Total wire length ~2600 m per panel. Winding time: ~4 h per panel. • 8 panels have been successfully wound • Ready to wind the 9 th W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 59

Automatic Soldering • Automatic wire soldering is done using the Panasonic machine. It is fully operational and has been used to solder most of the 8 wound anode panels. W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 60

CSC Factory Team W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 61

Summary EMU Status • CSC chambers operating very well • Delivering good triggers and reconstructed muons • Wisconsin team is an important ingredient CSC Upgrade • Factory operational • Experts are trained • Procurements of parts, electronics, cables, etc. going well • 1 st Endcap finished by Feb ‘ 13 • 2 nd Endcap finished by Dec ‘ 13 W. Smith, S. Dasu. D. Carlsmith, R. Loveless, U. Wisconsin, September 19, 2011 DOE Review: Task T: CMS at LHC - 62