ATLAS at the LHC: Goals for TRIUMF 2015-2020

• Tier-1 Computing Center, ATLAS Detector Upgrades: – Enabling physics at the energy frontier

• Rob McPherson – Professor at the University of Victoria and IPP Principal Research Scientist – Spokesperson of the ATLAS-Canada Collaboration 2013 November 14 1

The LHC

The ATLAS Detector

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Publications

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• To date: 267 papers published or submitted with collision data • Anticipate ~ 100 more over coming year

And as you know … • ATLAS and CMS observed a particle consistent with the SM Higgs

– Reported on July 4th 2012 at CERN seminar – Several seminars in Canada as well – Huge amount of press, with Canadian ATLAS members appearing in

national and local TV, radio, newspapers and magazines – Cited in 2013 Nobel Prize award to theorists François Englert and Peter

W. Higgs

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ATLAS and Canada • Over 150 Canadian scientists work on ATLAS

– 40 Faculty, 30 Postdocs, 70 Grad Students, 25 Undergrads, 25 Compute/analysis support, 20 engineers/technicians

– About 5% of ATLAS • ATLAS Canada

– Founded 1992 : Michel Lefebvre, UVic – Spokesperson/PI : Rob McPherson UVic/IPP – Deputy: : Richard Teuscher UofT/IPP – Physics coord. : Bernd Stelzer, SFU – Computing coord : Réda Tafirout, TRIUMF

• Built and operate key ATLAS systems – Particle detectors, electronics, trigger, computing

• Host 10% of the ATLAS data at TRIUMF • Leadership in ATLAS Detector Upgrade Program

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Alberta Carleton McGill Montréal SFU Toronto TRIUMF UBC Victoria York

Canadian ATLAS Leadership

• Publications Committee Chair – Vetterli (TRIUMF/SFU)

• Authorship Committee Chair – Trigger (TRIUMF)

• Higgs Physics Group Convenor – Savard (TRIUMF/Toronto)

• Top physics group convenor – Lister (UBC)

• LAr Phase 2 detector & engineering coordinator – Krieger (Toronto)

• Trigger coordinators – Robertson (McGill/IPP),

Bernlochner (Victoria)

• ATLAS Executive Board – McPherson (UVic/IPP)

• ATLAS Computing management – Tafirout (TRIUMF)

• Compute Canada Advisory – O’Neil (SFU)

• Physics subgroup convenors – Canepa (TRIUMF), Stelzer-Chilton

(TRIUMF), Gecse (UBC), Tarrade (Carleton)

• Collaboration paper/note final approval – McPherson (UVic/IPP), Savard,

Trigger (TRIUMF), Vincter (Carleton) • Software reconstruction coordinator

– Seuster (TRIUMF) 9

Snapshot of current/recent more major roles:

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ATLAS-Canada: grad students • Maintaining strong interest from

both undergrad (summer, co-op) and graduate students

• Continue PhD graduation with collision data

30 November 2012

• Huge interest in ATLAS from excellent students.

• Graduates go on to jobs throughout Canadian science and technology sectors

CURRENT STUDENTS (68 total)

PhDs Awarded (52 total, 27 with collisions)

2012/2013 Data Taking: Summary

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2011: 93.5% eff. 2012: 93.6% eff.

• Detector and Trigger in excellent shape: – Canadian detectors: all performing well

(LAr Calorimeters, beam and radiation monitors, TRT readout, HLT)

– Canadian systems: both online and final luminosity measurements

– Canadians, esp. TRIUMF, central to ATLAS Data Quality Assessment

• Pioneered Central DQA, LAr Calo DQA • Continuous effort to adapt to improving LHC

performance – Max peak lumi: 8 x 1033 cm-2s-1

– Pileup: max 49, max average 35.4 • ATLAS design: 25

– Trigger menus continuously evolving • Significant Canadian involvement

– Offline algorithms: pileup optimization • Canadian effort

– Grid computing and analysis • Canadian Tier-1 and Tier-2 centres

ATLAS-Canada Physics Activities • Canadians active in many aspects of ATLAS physics

– Higgs discovery channels, fermion decay modes, property measurements – SUSY searches with jets, leptons, higgs bosons

• Especially: leaders in “natural SUSY” searches (stops, higgsinos) – Exotic particle production

• Heavy vector bosons, vector-like quarks, monopoles and other heavily ionizing particles, general dark matter searches in mono-jet production

– Top-quark physics, Drell-Yan, other Standard Model processes • Hold convenerships and coordination roles through ATLAS physics groups

– Significant efforts from TRIUMF, with 5 full-time faculty, plus 4 joint appointments with Canadian universities, plus 2-3 visitors at TRIUMF, 3 postdocs, 3 CERN-based technical positions, 7 grad students at TRIUMF

• TRIUMF Tier-1 personnel provide critical analysis tool support to Canadians – Grid computing issues, data access, analysis tool support, local analysis

framework installation and support • Major success following from previous TRIUMF 5YP priorities • Non-optimal 2015-2020 funding: puts Canadian physics in jeopardy

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2013 November 14

What is Needed to Move Forward?

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LHC Baseline Plan • Three “long shutdowns” with ATLAS phase 0/1/2 upgrades • Currently engaged in “phase 0” installation, “phase 1”

construction and “phase 2” R&D

3 November 2013 McPherson - Upgrades Overview

2013 November 14

1) ATLAS Tier 1 computing centre • TRIUMF Tier-1 enables Canadian ATLAS physics

– Funded so far via CFI (approximately CAD $20M so far, hardware, personnel, ops)

– Hosts 10% of ATLAS data – Top performing ATLAS Tier-1 centre – Provides analysis support across Canada

• Personnel funded to 31 March 2015 by CFI Funds

– Critical: absorb 9 FTE people into TRIUMF budget. Difficult without optimal TRIUMF funding

• By ≈ 2015: run out of space – Urgently require satellite room with

electrical, cooling, network infrastructure – Cost is CAD $0.5 M

• Continued operation costs (network user fees, maintenance, power)

– ≈ CAD $1.5M over 5 years (2015-2020) not including personnel

• Computing hardware expansion (CPU, disk, tape): from CFI

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ATLAS Upgrade Timelines 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 .. 2030

Phase 0 upgrade: Consolidation, √s=13-14 TeV, 25nsec bunch spacing, L≈1x1034 cm-2s-1 (µ≈30) ∫L ≈ 50 fb-1

• New insertable pixel b-layer (IBL)

• New Al beam pipe • New pixel services • New evaporative

cooling plant • Consolidation

(calorimeter power supplies)

• Neutron Shielding • Finish EE muons

installation • Upgrade magnet cryo

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Phase 1 upgrade: Ultimate luminosity L≈2x1034 cm-2s-1 (µ≈60) ∫L > 350 fb-1

• New Muon Small Wheel (NSW)

• High Precision Calorimeter Level-1 Trigger

• Fast Track Trigger (FTK)

• Topological Level-1 Trigger Processor

• (New forward diffractive physics detectors AFP)

Phase 2 upgrade:

L ≈ 5x1034 cm-2s-1 (µ≈150) ∫L ≈ 3000 fb-1

• All new Tracking Inner Detector

• Calorimeter Electronics Upgrades

• Muon system upgrades (big wheels)

• Level-1 track trigger • New forward

calorimeters

2013 November 14

2) Cdn ATLAS Upgrade Projects • Two areas have Canadian involvement in construction.

Project focus: maintain low lepton pT trigger thresholds in high pile-up environment, critical for Higgs boson studies – New Muon Small Wheel: TRIUMF, Carleton, McGill, Montreal, SFU,

UVic – LAr electronics: TRIUMF, UVic

• Also R&D for phase 2 upgrades – High Rate Forward Calorimetry: TRIUMF, Toronto, UVic – Inner Detector: UBC, Toronto, York, Montréal

• Timescales: – Phase 1 Infrastructure deployment/testing: now – Phase 1 Major construction starting 2015 – Phase 2 R&D : wrap-up by 2016-2017 for start of construction

• Projects depend on TRIUMF infrastructure and personnel – Electrical Engineers, Mechanical Engineers, Technicians, Designers

• Expertise and experience: critical for our success • Positions are put in jeopardy in non-optimal funding scenarios

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Phase 2: 2021/22 (LS3) for HL-LHC • Plan:

– Have new detectors ready for installation by 2021 – Requires full systems on surface for testing before 2021

• ≈ 2016—2017: – Finalize technical designs, sign Memoranda of Understanding

• Canada: depend critically on TRIUMF infrastructure and personnel

• Until then – Vigorous R&D and prototyping program to understand engineering

issues • Currently strong support from TRIUMF, especially Engineering and

Detector groups

• Note: • European strategy confirmed HL-LHC is highest priority project

even if purely studying H(125) with 3000 fb-1. Project will go ahead.

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2013 November 14

Summary • TRIUMF has enabled Canada to

become a major player in the LHC and ATLAS

• And is enabling Canadians to be leaders in ATLAS physics and detector upgrades

• ATLAS-Canada looks forward to years of continued collaboration with TRIUMF McPherson ATLAS-Canada TRIUMF IRPC 19

• Extra slides

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2013 November 14

Context • ATLAS / LHC in the TRIUMF 5YP

– 2.1, 2.2, 3.2, 3.3 • ATLAS has been a key success in

– Connecting Canada to leading science – Training people in advanced science and technology – International collaboration leadership – Collaboration with, and support of, leading Universities

– 4.2.1, 4.2.5: successes in current plan – Enable Canadian leadership in key physics discoveries & measurements – Direct contribution to decision making for future of particle physics

– 5.5.5 5.8.1 – assets – Detector development facilities key for ATLAS upgrade R&D – ATLAS Tier-1 computing centre: hosts 10% of ATLAS data, enables

Canadian LHC physics – 6.1, 6.2.2, 6.3.2, : goals for upcoming plan

– Maintain and enhance ATLAS Tier 1 computing centre – Construction centre for ATLAS upgrades – ATLAS physics leadership: beyond the Standard Model

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HQP - Former postdocs/RAs: where are they now?

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Postdocs and Research Associates Faculty: Particle Physics 12 Faculty: other (astro particle, engineering, ..) 3 Private/public sector (medical phys., computing/sw, analyst, engineering, …) 13 Teaching/lecturing (university, CEGEP, high school) 4 Postdoc / Research Associate (not permanent) 17 Not Known 2

Total 51

HQP - Former students: where are they now?

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ATLAS Canadian PhD Graduates Faculty: Particle Physics 3 Faculty: other (astro particle, CEGEP) 2 Private/public sector (medical phys., computing/sw, analyst, engineering, …) 14 Teaching/lecturing (university, CEGEP, high school) 4 Postdoc / Research Associate (not permanent) 15 Still in market (applying) and Not Known 4

Total 42

ATLAS Canadian MSc Graduates ATLAS PhD (completed or enrolled) 30 PhD in other Particle Physics project 12 PhD in other field (astrophysics, medical physics, engineering, computing) 6 Private/public sector (medical phys., computing/sw, analyst, engineering, …) 13 Teaching/lecturing (non PhD) 5 Not Known 2

Total 68

The LHC Computing Grid • One computing centre with

100’s of physicists analyzing Petabytes of data per year not possible

• Farm out data around the world using GRID

• 10 Tier 1 for raw data processing

– 1 in Canada: TRIUMF – Hosts 10% of ATLAS Data

• ≈ 70 Tier 2 for physics group access

– 4 sites in Canada: West: UVic,SFU. East: Toronto,McGill

• User physics analysis support – TRIUMF provides support for all

Canadian ATLAS physics analysis

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Canadian ATLAS physics Higgs

Canadian ATLAS physics: SUSY

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Canadian ATLAS Physics: Dark Matter

Phase 2: 2021/22 (LS3) for HL-LHC

• LHC: planned delivery: 300-350 fb-1 before LS3 • LHC: ready to run at L p = 5x1034 cm-2s-1 with luminosity leveling after LS3 • Biggest project: construction of new inner detector (extensive R&D,

prototyping and engineering ongoing) • Calorimeter readout needs substantial upgrades

– Planned in stages, starting with Phase 1 • LAr endcaps might need to be opened for FCal work and/or HEC electronics

replacement – Final decision: 2015-2016

• Muon spectrometer upgrades in big wheel region • Existing electronics/computing/TDAQ will need upgrades to face additional

8—10 years of running • ATLAS will require 2+ years of shutdown for installation • Currently in R&D phase • Major construction starts: 2016-2017, depending on the system

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ATLAS Phase 1 : motivation • Key upgrades are driven by the need to keep trigger

thresholds as low as possible for H(125) studies – Key modes are Hγγ and associate production with W/Z

particles (with decays to leptons) – Keep low inclusive / di-object thresholds for e,µ,τ, γ

despite high pileup • Main upgrades

– NSW: better muon trigger, improved tracking – FTK: track information at start of HLT – LAr Digital Trigger: higher granularity – TDAQ: exploit topological info at level 1

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New muon small wheels (more granularity)

Trigger rate reduction studied using data

~ 1/6 in 1.3<η<2.5

• Plan to replace muon small wheels with improved trigger capability: need <1mrad angular resolution and associated trigger vector capability

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LAr Trigger Granularity

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2013 November 14

Projected Impact • What will likely result from this specific proposal?

– Knowledge Advantage? • Advancing our understanding of matter, mass, and the physics at the

transition where the universe’s “energy” became particles – Cdn calorimetry expertise ⇒ leadership in jets, missing energy

» Vector-boson Fusion Higgs, SUSY, top-quarks – People Advantage?

• ATLAS-Canada ~ 70 Canadian graduate students – Training in scientific methods, particle and radiation detection,

computing, grid and analysis tools is difficult to match – Most will use these skills in other disciplines and fields, increasing

Canadian science and technologies expertise – Entrepreneurial Advantage?

• History in particle detection R&D leading to applications in a wide variety of fields

• Grid computing, high performance computing centres, fast networking: driven by the LHC projects

– Scratching the surface of implications outside of particle physics McPherson ATLAS-Canada TRIUMF IRPC 32

2013 November 14

Working with Partners • Collaborate directly with CERN and many participating

international labs on the LHC – US: BNL, SLAC, LBNL, Argonne – France IN2P3/CNRS: LAPP, LAL – Germany: DESY, MPI Munich – Japan: KEK, Tokyo IHEPP – Russia: JINR, IHEP, Netherlands: NIKHEF, Italy: INFN – ATLAS alone has nearly 200 institutions in 3 dozen countries

• Canadian funding agencies – NSERC, NRC, CFI, CANARIE, BCNET

• Strong ties to Canadian Universities – Alberta, British Columbia, Carleton, McGill, Montreal, Simon Fraser,

Toronto, Victoria, York • Support Azuelos (Montréal), Gingrich (Alberta), Oakham (Carleton),

Savard (Toronto), Vetterli (Simon Fraser)

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