bnl director’s review - 17-jan-2006 baker 1 usatlashi: collaboration & plans mark d. baker...

BNL Director’s Review - 17-Jan-2006 Baker 1

USATLASHI: Collaboration USATLASHI: Collaboration & Plans& PlansMark D. Baker

Brookhaven National Laboratory

Executive summary:Executive summary:• Great physics opportunityGreat physics opportunity• We were challenged by DOE to:We were challenged by DOE to:

• Get our act together (collaboration & plan)Get our act together (collaboration & plan)• Work with “redirected” moneyWork with “redirected” money

• Successes:Successes:• We have people and a planWe have people and a plan• Best physics & Least new money @ LHC-HIBest physics & Least new money @ LHC-HI


Status of the fieldStatus of the field• The matter produced at RHIC is VERY black

• Detailed studies are needed to disentangle RHIC physics

• Really high pT jets at the LHC should clarify the physics• The ATLAS detector is DESIGNED to study jets

I. Tserruya, QM05 Summary


Status of the fieldStatus of the field• The matter produced at RHIC is VERY black

• Detailed studies are needed to disentangle RHIC physics

• Really high pT jets at the LHC should clarify the physics• The ATLAS detector is DESIGNED to study jets

• Heavy quarks are flowing• Study them carefully at RHIC with PHENIX/STAR upgrades• Study them at the LHC where they are copiously

produced

• Multiplicity (CGC!), flow & RAA also very interesting...• Day 1 @ LHC-HI should be as exciting as it was at RHIC


Focus for US-ATLAS-HIFocus for US-ATLAS-HI• Day 1 physics

• Improve/adapt global event algorithms

• High pT, jet & heavy flavor physics• Improve/adapt algorithms for basic triggering• Improve/adapt jet & flavor-tagging algorithms

• BNL as center of US-ATLAS-HI • Computing & Data Analysis • Heavy Ion Theory

• ZDC for ATLAS


Synergy with RHIC/BNL:Synergy with RHIC/BNL:• Intellectual center

• Almost all HI experimentalists and many theorists visit every year.

• Active ongoing experiments• Do we want to retain or abdicate this leadership in

Heavy Ions & QCD in the LHC era?

• World-leading and still growing experience in• High pT physics analyses (PHENIX)

• Multi-level triggering (PHENIX)• Zero-Degree Calorimetry (S. White)

• Strong U.S. universities active on ATLAS & RHIC• Colorado, Columbia, Iowa State, Stony Brook


Synergy with Synergy with US-ATLAS/ACF:US-ATLAS/ACF:

• USATLAS “Tier 1” Computing Facility • Overlap with the RCF

• Known and smooth working relationships

• Natural & expected place to put ATLAS-HI Tier 1

• DOE-HE-funded Atlas (+ACF) people• 25-30 FTEs now, should grow to ~45 FTEs

• 12 FTE physicists playing a central USATLAS analysis role

• Int’l-HI & US-HE connections• ATLAS-HI co-convened by Helio Takai. • Cracow group has a close connection to BNL-Chem.• IHEP-Protvino, & LBNL(HE) & Yale to White.


Status of USATLASHI Status of USATLASHI (9/2005)(9/2005)

• Messages from DOE visit• Physics and cost-effectiveness sound (too) good• Plans are vague & therefore not credible

• Collaborator commitment not clearly identified• Technical tasks not spelled out• Need resource-loaded schedule

• No money until FY08 or FY09.• People & ZDC must be redirected from base.• Computing discussion was largely tabled.

• FY06 budget roller coaster hampered planning


Progress in last 4 monthsProgress in last 4 months• Several Decisions Taken

• Use new standard “ATHENA” code in ATLAS• Detailed task-lists / timetables prepared • Clear manpower commitments/plans from

• Columbia, Iowa State, SBU-Chemistry, SBU-Physics

• BNL manpower commitments/plans:• Held up by budget crisis & pending this review

• Real workers coming on shell


Use Standard ATHENA codeUse Standard ATHENA code• Letter of Intent simulations did not use

ATHENA

• Switching over is time-consuming• Dedicated effort required (ATHENA/HIJING)

• Oct. 22-23, 2005: Tutorial: Srini Rajagopalan et al. • Nov. 2005 - now : Work by Olszewski (Krakow) &

Leltchouk, Cole (Columbia)• Jan. 23-27, 2006: ATHENA/HI-Simulation week @BNL

• Most efficient in the long run• Access to official up-to-date code• BNL support – Srini R., Ketevi A., Hong Ma


MilestonesMilestones• Feb. 2006: “Healthy” HI events simulated and

reconstructed in ATHENA.

• Apr. 2006: ZDC prototype module complete.

• May 2006: “CSC” – mock data challenge

• Oct. 2006: Physics Performance Report

• June 2007: pp pilot run (possible PbPb day??)

• Nov. 2008: PbPb run

• May 2009: Ready to publish?


Software Tasks (through Software Tasks (through May 2009)May 2009)

• 220 individual tasks for 31.5 person-years• ATHENA/Simulations

• 1.5 person-year (starting now)

• Day 1 Readiness + Physics results• 3 person-years + 1.5 person-year

• Quarkonia + Publication• 1.5 person-year + 0.5 person-year

• Tracking• 1.5 person-years

• Jet finding/reconstruction – Main Physics Focus• 19 person-years

• Project Management• 3 person-years


Task Example: TrackingTask Example: Tracking• Six subtasks (19 person-months)

• Reevaluate existing software in ATHENA (4 mo.)• Modify xkalman to use a single primary vtx (1 mo.)• Track extrapolation to Calorimeter (2 mo.)• Tune tracking algorithms (3 mo.)• TRT-specific trackfinding (6 mo.)• Impact parameter measurement in ATHENA (3 mo.)


Task Example: JetsTask Example: Jets• Seven Subtasks (19 person-years total):

• Jet finding, jet core algorithm (33 mos.)• Jet finding, sliding window algorithm (33 mos.)• Jet finding, likelihood kt algorithm (40 mos.)• Jet energy flow (36 mos.)• Sub-jet analysis, sliding window (30 mos.)• Sub-jet analysis, kt algorithm (24 mos.)• Charged particle fragmentation function (30 mos.)


SubTask Example: JetsSubTask Example: Jets• Jet finding, likelihood kt algorithm (40 mos.)

• Develop v0 using only calorimeter (6)• Measure v0 performance w/ flow & normal jets (3)• Measure v0 performance w/ flow & modified jets (2)• Develop v1 using v1 inner tracking (3) • Measure v1 performance w/ flow & normal jets (3)• Measure v1 performance w/ flow & mod. jets (2)• Measure v1 performance alt. HI events & mod. jets (1)• Produce production version (2)• Evaluate using pp data (4)• Test on HI data (6)• Final tune for HI data (2)


Atlas Heavy Ions (1/2006)Atlas Heavy Ions (1/2006)• Non-US International

• LHEP• U. Bern • CERN• MEPhI, JINR• INFN• IPNP - Prague• UF -Rio de Janeiro• U. Geneva• INP - Cracow (PHOBOS)

• United States• BNL Chemistry• BNL Physics (NP+HEP)• Colorado• Columbia• Iowa State• SBU Chemistry• SBU Physics


Committed ManpowerCommitted Manpower• Columbia: 2.5 FTEs now, up to 4.5

• Cole(0.5), Grau(0.5), Leltchouk, student(0.5)• FY07: Add 1 student• FY08: Add 1 student (4.5 FTEs total)

• Iowa State – 1.1 FTEs ++ • Rosati (60%), Lebedev (50%), Hill (20%)• New faculty in ~ FY08• Students in FY07 or FY08?

• Stony Brook Chemistry: 1.5 up to 4+• Lacey(0.5), postdoc(0.5), postdoc(0.5)• FY07: 2 students • FY07: Possible joint faculty (0.5) + more students?


Planned ManpowerPlanned Manpower• BNL 4.3 FTEs up to 5.8 FTEs

• Baker (0.5), Debbe(0.5), Moraes, Nevski (0.3), Steinberg(0.5), Takai(0.5), Videbaek(0.5), White(0.5)

• Future (FY07 and/or FY08): • Increased % of Baker, Steinberg?• Lee(0.5), Nouicer(0.5)

• Stony Brook (Physics) • Under discussion


US ATLAS HI

0

2

4

6

8

10

12

14

16

18

2005 2005.5 2006 2006.5 2007 2007.5 2008 2008.5 2009 2009.5

Date

FT

Es

Series1

FTE plot by quarter (lower FTE plot by quarter (lower limit)limit)

CY06Q1CY06Q1 CY07Q1CY07Q1 CY08Q1CY08Q1 CY09Q1CY09Q1

1010

U.S. FTE-years (Feb. 2006-May 2009): U.S. FTE-years (Feb. 2006-May 2009): 4242


Bottom-up costingBottom-up costing University Lab

Professor $40k+$160k N/A

Staff member $150k $250k

Postdoc

$75k $90k

Student $50k $50k


Committed labor cost Committed labor cost estimateestimate

• University• $700k/yr ($450k from DOE) committed spring ‘06.• Should grow by > x2 by startup.

• BNL – NP• ~$600k now (2.5 FTE x $250k)


Non-US declared FTEs Non-US declared FTEs (lower limit)(lower limit)

• 6.5 FTEs total. No growth plan indicated.• Krakow – 5 heads, 3 FTEs

• Wosiek(0.5), Olszewski(0.5), Toczek(1), Trzupek(0.5), Wozniak(0.5)

• Geneva – 1 head, 1 FTE• Rosselet (1)

• Prague – 2 heads, 1.5 FTE• Dolejsi(0.5), Spousta(1)

• MEPhI – 2 heads, 1 FTE• Pozdnyakov(0.5), Timoshenko(0.5)


US ATLAS HI

0

2

4

6

8

10

12

14

16

18

2005 2005.5 2006 2006.5 2007 2007.5 2008 2008.5 2009 2009.5

Date

FT

Es

Series1

FTE plot by quarter (lower FTE plot by quarter (lower limit)limit)

CY06Q1CY06Q1 CY07Q1CY07Q1 CY08Q1CY08Q1 CY09Q1CY09Q1

1010

U.S.U.S.

EuropeEurope

FTE-years (Feb. 2006-May 2009):FTE-years (Feb. 2006-May 2009): 4242 ++ 2121


ZDCZDC• Multipurpose

• Heavy Ion centrality & event selection• “Deep” Ultraperipheral collisions

• Structure @ low x, high “Q” – CGC etc.

• Critical for instrumentation• Something to “own”

• Needs to get official ATLAS approval• Peter Jenni:

• [The ZDC] “would be a welcome further step”• Needs to be financed first (!)• Needs to be compatible with LHCf + ATLAS plans• Next step clear: (SW+MDB+HG, March Workshop)


ZDCZDC

FY 05 FY 06 FY 07 TotalPre-R&D 0R&D 5 5CDR 0PED/EDIA 25 27 52Construction 80 140 220Preops 0

TEC 0 105 167 272TPC 5 105 167 277

Planned RedirectNeeded New Funds (TPC-redirect) 5 105 167 277

ZDC Calorimeter Construction

Constant FY 05 $k

Proposal: Use BNL-NP baseline capitalComplete project plan available

75 350 75 500Old numbers:


Summary of “Project” PlanSummary of “Project” Plan• No actual DOE MIE project requested.

• Research Operations funding requested• Recurring capital computing expense requested• ZDC proposed as a small capital project funded

through BNL-NP baseline capital

• Ideal high-payback project under DOE rules of engagement• Great physics & visibility• Small capital investment


CERN view of ATLAS-HICERN view of ATLAS-HI• LHCC (LHC Committee):

• “encourages the ATLAS Collaboration to continue their studies for heavy ion physics with a view to submitting a Physics Performance Report.” - May 2004

• Hermann Schmickler, CERN-AB-BDI-GL• w/ S. White: “On the Potential Use of Zero-Degree

Calorimetry for LHC Luminosity Monitoring”, LARP Meeting, Port Jefferson, NY - April 2005

• Glossary:• AB = Accelerators and Beams Dept. • BDI= Beam Diagnostics & Instrumentation• GL = Group Leader• LARP = U.S. LHC Accelerator Research Program


ATLAS HI SummaryATLAS HI Summary• ATLAS is ideal for studying jets & heavy flavor

• high granularity of the calorimeter• external muon spectrometer• Si vertex detector availability on day 1

• Very leveraged investment• Collaboration requirements on DOE-NP are minimal• Strong U.S.ATLAS (HEP) group in proximity to RHIC• Maintains BNL as Intellectual Center of HI/QCD Physics

• U.S. ATLAS-HI Collaboration is healthy and growing• Lots of work & great physics ahead!

bnl director’s review - 17-jan-2006 baker 1 usatlashi: collaboration & plans mark d. baker...

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