university of houston heavy ion group

May 23, 2007 L. Pinsky-University of Houston ALICE-USA DOE Panel Review

1

University of HoustonUniversity of HoustonHeavy Ion GroupHeavy Ion Group

An ab initio Request for Funding to Enable the UH Heavy Ion

Group to Formally join ALICE as a Member of ALICE-USA


2

Summary of This Presentation

• Who Are We?

• What We Have Done So Far wrt ALICE…

• What Is Our Contribution to the RMP…

• What Are Our Contributions to the EMCal Project

• Our Physics Interests in ALICE…

• What Are We Asking For?


3

Who Are We?• The Heavy Ion Group at UH is a sub-group of experimental

particle physicists on the Physics Faculty (4 Experimentalists & 1 Theorist). Considerable work in hypernuclear physics (DOE-MEP) & neutrino physics-Daya Bay (DOE-HEP) + new faculty prospects…

• The Heavy Ion Group participating in ALICE-USA includes: 2 Faculty, 1 Post-Doc and 2-3 students…– Larry Pinsky (Professor & P.I.)– Bill Mayes (Professor)– Toni Empl (Post-Doctoral Fellow) -- (Now in US from 5 yrs @ CERN)

– Charo Delgenio (Graduate Student)– Dilan Minthaka (Graduate Student)


4

Past Experimental Highlights• E767 & E795 (AGS -- DOE MEP funded) 1981-85

– Antineutron-Proton cross section measurements…– Drift chambers & associated electronics…

• MEGA (LAMPF -- DOE MEP funded) 1988-1996– Rare decays ( e + )– Cylindrical Drift Chambers and associated electronics

• NA47-SMC (CERN -- DOE MEP funded) 1988-1996– Spin dependent neutron structure functions– 32 Coordinates of 4m x 4 m streamer tubes and electronics

• NA49 (CERN -- DOE MEP funded) 1996-1999– Fixed target relativistic heavy ion interactions– Run support (3 yrs) and data analysis (1.5 yrs).

• NASA (AGS, HIMAC & CERN -- NASA funded) 1999-Present– Heavy ion transport Monte Carlo code development (FLUKA)– Medium energy neutron & heavy ion cross section measurements…– Heavy ion event generator development…– LSP is a current member of the FLUKA Scientific Committee @ CERN

Other Efforts:GEM @ SSCMECO @ BNL


5

What Have We Done So Far with respect to ALICE & ALICE-USA

• Founding member of ALICE-USA (2000 to present…)

• Supported since 1999 by UH TLC2 “seed funding” for ALICE… (Also contributed computing resources for ALICE Data Challenges and EMCal trigger study calculations…)

• (LSP) Served as ALICE-USA Computing Coordinator 2002-2005, and as Distributed Computing Coordinator since. Also a member of LCG (LHC Computing Grid Project - 2004-present) representing ALICE-USA.

• (LSP) Serving as the first ALICE-USA Council Chair…

• (BWM) EMCal trigger design simulation calculations and analysis.

• (BWM + Student) EMCal Test Beam run support at FNAL.

• (LSP + Post-Doc) ALICE-USA FLUKA interface.


6

Our Contributions to the RMP• Test Beam (FNAL) — Mayes[0.05] (run support) + G/S[0.25]

(run support & analysis).• Trigger Simulations — Mayes[0.2] (Deliverable—raw events,

jet trigger strategy studies)• Trigger Design — Pinsky[0.1] (Deliverable—Initial Level 0/1

jet trigger design scenarios)• Offline Software — P/D[0.25] + Grad Student[0.15]

(preliminary p-p & Pb-Pb jet finding code development).• Offline Computing — Pinsky[0.1] + Grad Student[0.1]

(Continued Grid computing development—proposal support to acquire needed resources—LCG ALICE-USA representation)

• Calibration Database Development — Mayes[0.1] + Pinsky[0.12] + P/D[0.25] (Create and test initial calibration database within the ALICE distributed computing Grid framework). (Deliverable—EMCal calibration database within the ALICE offline computing infrastructure).

2007


7

Our Contributions to the RMP• Test Beam (CERN) — Mayes[0.1] (run support) + G/S[0.25]

(run support & analysis).• Trigger Simulations — Mayes[0.13]• Trigger Design — Pinsky[0.1]• Offline Software — Pinsky[0.1] + Mayes[0.2] + P/D[0.75] +

Grad Student[0.75] (p-p & Pb-Pb jet finding code development).• Offline Computing — Pinsky[0.1] + Grad Student[0.1]

(Continued Grid computing development—proposal support to acquire needed resources—LCG ALICE-USA representation)

• Calibration Database Deployment — Mayes[0.2] + Pinsky[0.1] + P/D[0.25] (Implement and maintain calibration database within the ALICE distributed computing Grid framework).

• Install and Commission EMCal — Pinsky[0.1] + G/S[0.2] (Assemble, Calibrate and install super modules at CERN)

• Detector Operation — Pinsky[0.1] + G/S[0.2] (Stand shifts in support of data-taking)

2008


8

• Trigger Design — Pinsky[0.1] + Mayes[0.16] (Study trigger efficiencies and performance) (Deliverable—Trigger performance analysis)

• Offline Software — Pinsky[0.26] + Mayes[0.4] + P/D[0.65] + Grad Student[2.0] (p-p & Pb-Pb jet finding code improvement and analysis). — (First Ph.D. Thesis)

• Offline Computing — Pinsky[0.1] + Grad Student[0.1] (US Grid computing deployment—LCG ALICE-USA rep.).

• Calibration Database Support — Mayes[0.1] + P/D[0.1] (Maintain calibration database within the ALICE distributed computing Grid framework for const. and deployment support).

• Install and Commission EMCal — Pinsky[0.1] + G/S[0.4] +P/D[0.25] (Assemble, Calibrate-Cosmic Ray Calibration Studies) and install super modules at CERN)

• Detector Operation — Pinsky[0.1] + P/D[0.1] + G/S[0.2] (Stand shifts in support of data-taking)

Our Contributions to the RMP

2009


9

• Analysis — Pinsky[0.2] + Mayes[0.5] + P/D[0.65] + Grad Student[2.0] (p-p & Pb-Pb jet finding code improvement and analysis). — (Second Ph.D. Thesis).

• Offline Computing — Pinsky[0.06] (US Grid computing deployment—LCG ALICE-USA representation). (Deliverable— Improved US Grid analysis infrastructure).

• Calibration Database Maintenance — Mayes[0.06] (Maintain calibration database within the ALICE distributed computing Grid framework for construction and deployment support).

• Commission EMCal — Pinsky[0.2] + G/S[0.6] +P/D[0.25] (Data-Based Calibration studies).

• Detector Operation — Pinsky[0.2] +Mayes[0.1] + P/D[0.1] + G/S[0.4] (Stand shifts in support of data-taking & maintain EMCal hardware)

Our Contributions to the RMP2011


10

Our Contributions to the EMCal Project

• UH will be responsible for the acquisition and fabrication of the LED calibration components and fabrication of wavelength-shifting fiber bundles…

• UH can also offer the support infrastructure to setup an alternate tower assembly site in the event that an accelerated production schedule is feasible.


11

The UH/TLC2 Connection• TLC2 (The Texas Learning and Computation Center) is

currently providing ~150 CPUs for ALICE Data Challenges. Support has been recognized at LCG as being among the best.

• TLC2 could offer even more resources as a match to supplement support to fund ~1.5% of ALICE total computing needs (see Soltz computing presentation)…

• In addition, such hardware support would also be matched with 2.0 flexible FTE in support personnel (Middleware software development, sys-admin and maintenance)


12

UH Group’s Physics Interests(“Analysis” Focus)

• Jet Quenching (tougher than @ RHIC)– Jet Triggers and Trigger Bias Studies (>50 GeV)– Jet Finding Algorithms– Jet Measuring Algorithms– Background Studies– Fragmentation Modifications

by the medium…– Away-Side Correlations

• Mach Cone Correlations (more complex than @ RHIC)• Interaction Morphology (wrt QGP)• Energy Dependence

side 1

side 2

near

away


13

Energy Dependence• Measuring as a function of

jet energy and of gluon density can yield substantial EOS information…

• Studying the evolution of as a function of Q2 as a probe of the color density of the medium…

• This requires substantial analysis of p-p jets at ALICE as well…

€

ˆ q R

€

ˆ q R€

ˆ q R Casalderrey-Solana & Wang

arXiv:0705.1352


14

What Are We Asking For?

• A grant from the DOE Heavy Ion Physics Office to enable us to:– …Participate in ALICE as a member of the ALICE-

USA Collaboration…– …Provide funding support for 2 faculty members,

1 post-doc and increasing to 3 students…• Summer salary for faculty…• Full salary and stipend support for the post-doc and the

graduate students…• Travel and incidental M & O support for the group.


15

RMP Personnel Spreadsheet(Excludes All Project-Supported FTE)

Personnel / Year 2007 2008 2009 2010 2011 2012

L. Pinsky (faculty) 0.3 0.67 0.67 0.67 0.67 0.67

B. Mayes (faculty) 0.3 0.67 0.67 0.67 0.67 0.67

A. Empl (post-doc) 0.5 1.0 1.0 1.0 1.0 1.0

C. Delgenio (grad. s.) 0.3 0.75 0.75 1.0* 1.0* 1.0*

D. Minthaka (grad. s.) 0.3 0.75 0.75 1.0 1.0* 1.0*

Grad. Student (TBD) 0 0 1.0 1.0 1.0 1.0

Total FTE (Excl. Proj.) 1.7 3.8 4.84 5.33 5.33 5.33

Total “ALICE” Ph.D.s 3 3 3 3 3 3


16

Outreach--Quarknet• UH (in cooperation with Rice) have the

largest Quarknet current program.• High school physics teachers and

students will be able to participate in EMCal Project activities in Houston…

• One to two teachers per summer can travel to CERN to participate in EMCal & other ALICE-related efforts.

• NSF supported…


17

Thank You

Questions?Questions?

(RMP Summary Slides and Deliverable Summary Slides for all years are available…)


18

Our Contributions to the RMP• Analysis — Pinsky[0.36] + Mayes[0.46] + P/D[0.5] + Grad

Student[2.0] (p-p & Pb-Pb jet finding code improvement and analysis—includes final trigger studies).

• Offline Computing — Pinsky[0.1] (US Grid computing deployment—LCG ALICE-USA representation).

• Calibration Database Deployment — Mayes[0.1] + P/D[0.1] (Evolve and maintain calibration database within the ALICE distributed computing Grid framework for construction and deployment support).

• Install and Commission EMCal — Pinsky[0.1] + G/S[0.6] +P/D[0.25] (Assemble, Calibrate-Cosmic Ray Calibration Studies & Begin Data-Based Calibration studies, and install final super modules at CERN)

• Detector Operation — Pinsky[0.1] +Mayes[0.1] + P/D[0.15] + G/S[0.4] (Stand shifts in support of data-taking)

2010


19

Our Contributions to the RMP

• Analysis — Pinsky[0.4] + Mayes[0.5] + P/D[0.9] + Grad Student[2.5] (p-p & Pb-Pb jet finding code improvement and analysis). — (Third Ph.D. Thesis).

• Offline Computing — Pinsky[0.06] (US Grid computing deployment—LCG ALICE-USA representation).

• Calibration Database Maintenance — Mayes[0.06] (Maintain calibration database within the ALICE distributed computing Grid framework for construction and deployment support).

• Detector Operation — Pinsky[0.2] +Mayes[0.1] + P/D[0.1] + G/S[0.5] (Stand shifts in support of data-taking & maintain EMCal hardware)

2012


20

UHUH Deliverables (2007 &2008)• Trigger Simulations — Deliverable—raw events, jet trigger strategy

studies.• Trigger Design — Deliverable—Initial Level 0/1 jet trigger design

scenarios.• Calibration Database Development — Deliverable—EMCal calibration

database within the ALICE offline computing infrastructure.

• Trigger Simulations — Deliverable—further jet trigger strategy studies.• Trigger Design — Deliverable—Final Level 0/1 jet trigger design

scenarios.• Offline Software — Deliverable—Initial jet analysis codes.• Calibration Database Deployment — Deliverable—Maintained EMCal

calibration database within the ALICE offline-computing infrastructure.

2007

2008


21

UH Deliverables (2009 & 2010)• Trigger Design —Deliverable—Trigger performance analysis.• Offline Software — Deliverable—Improving jet analysis codes

and initial analysis results—First Ph.D. Thesis)• Offline Computing — Deliverable— Working US Grid analysis

infrastructure.• Calibration Database Deployment — Deliverable—Maintained

EMCal calibration database within the ALICE offline-computing infrastructure.

• Analysis — Deliverable—Improving jet analysis codes and continuing analysis results.

• Offline Computing — Deliverable— Improved US Grid analysis infrastructure.

• Calibration Database Deployment — Deliverable—Maintained and updated EMCal calibration database within the ALICE offline-computing infrastructure.

2009

2010


22

UH Deliverables (2011 & 1012)• Analysis — Deliverable—Improving jet analysis codes and continuing

analysis results—Second Ph.D. Thesis.• Offline Computing — Deliverable— Improved US Grid analysis

infrastructure.• Calibration Database Maintenance — Deliverable—Maintained EMCal

calibration database within the ALICE offline-computing infrastructure.• Commission EMCal — Deliverable—Initial data-based EMCal

calibrations.

• Analysis — Deliverable—Improving jet analysis codes and continuing analysis results—Third Ph.D. Thesis.

• Offline Computing —Deliverable — Stable & updated US Grid analysis infrastructure).

• Calibration Database Maintenance —Deliverable—Maintained EMCal calibration database within the ALICE offline-computing infrastructure).

2011

2012


23

UH group’s Physics Interests(“Fundamental”)

• Properties of the QGP– qR (Q2)– …and ultimately the Equation of State.

• Relation to the Big Bang early evolution and the current Large Scale Structure of the visible Universe. (This can lead to collaborations with local cosmologists…) – This is most sensitive to the nature of the QGP/Baryon phase

transition, but this also needs an accurate QGP EOS…

• The “Matter” Problem: How did we get the current matter distribution?– Needs a fairly precise knowledge of the QGP EOS…

^

university of houston heavy ion group

Documents

doe mep

alice data challenges

physics faculty

computing resources

run support analysis

offline computing pinsky0

trigger simulations

run support gs0