1RNC/LBNLALICE-US Review Germantown, May 23-24 2007

ALICE at LBNLPeter Jacobs

• RNC accomplishments in heavy ion physics• Jet quenching at RHIC and LHC• RNC in ALICE: Physics, EMCal project, PDSF• Workforce projections

2RNC/LBNLALICE-US Review Germantown, May 23-24 2007

RNC accomplishments in heavy ion physics

• Development of the Time Projection Chamber for heavy ion physics: EOS → STAR• Development and leadership of STAR at RHIC• Discovery of collective flow at the Bevalac, CERN SPS, and RHIC• Co-discovery and detailed elucidation of jet quenching at RHIC • Development of a new generation of ultra-high precision vertex detectors

3RNC/LBNLALICE-US Review Germantown, May 23-24 2007

RNC accomplishments cont’d

STAR publications with SPIRES TOPCITE 250+:• Elliptic flow at RHIC

K.H. Ackermann et al. (STAR), Phys. Rev. Lett. 86:402 (2001).

• Jet quenching@130 GeV C. Adler et al. (STAR), Phys. Rev. Lett. 89:202301 (2002).

• Back-to-back hadron suppressionC. Adler et al. (STAR), Phys. Rev. Lett. 90:082302 (2003).

• Jet quenching @ 200 GeV J. Adams et al. (STAR), Phys. Rev. Lett. 91:172302 (2003).

• d+Au: J. Adams et al. (STAR), Phys. Rev. Lett. 91:072304 (2003).

• STAR White Paper J. Adams et al. (STAR), Nucl.Phys. A757:102 (2005).

All six papers have primary authors from the RNCRNC is among the world’s leading heavy ion research groups

4RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Jet quenching at RHIC

Jet fragments (color-charged)

Photons (color-neutral)

STAR, Phys Rev Lett 91, 072304

pTassoc > 2 GeV

cos()

pTassoc > 0.15 GeV

STAR, Phys Rev Lett 95, 152301

5RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Jet quenching: the deeper we dig, the more we find…

pTtrigger>8 GeV/c

Yie

ld p

er tr

igge

r

STAR, PRL 97, 162301 (2006)

Jet quenching will be as central to the LHC heavy ion program…

6RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Jet quenching in ALICE

Casalderrey-Solana and WangarXiv:0705.11352

Consider jet quenching similar to DIS jet energy variation probes QGP at varying length scales…

7RNC/LBNLALICE-US Review Germantown, May 23-24 2007

EMCal kinematic reach

Ratio of purple/red

175 GeV jets in ALICE acceptance

Jet quenching

Dashed line = no jet quenching

ALICE+EMCal enables world-class jet quenching measurements

8RNC/LBNLALICE-US Review Germantown, May 23-24 2007

LBNL Personnel on ALICE

RNC Senior Staff Scientists P. JacobsH.-G. RitterT. J. M. Symons

RNC Staff Scientists:S. KleinG. OdyniecM. van Leeuwen (term)

RNC Postdocs:J. Putschke

LBNL Engineering Division (EMCal Project Funds):J. RassonD. Peterson

9RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Physics Activities 20082008 Project Support Simulations and Analysis Total

FTE Details FTE Details

Jacobs 0.5 Trigger, Project management, module installation, p+p and Pb+Pb runs

0.5 Jet reconstruction, p+p analysis 1

Klein 0.1 data taking 0.1 p+p analysis 0.2

Odyniec 0.5 Calibrations, module installation, data taking

0.5 Heavy quark jet simulations, p+p analysis

1

Putschke/new postdoc

0.4 Trigger simulations, algorithms, hardware

0.6 Jet reconstruction algorithms (ALICE/STAR), p+p analysis

1

Ritter 0.2 Management, data taking 0.2

Symons 0.1 Management 0.1

Van Leeuwen/new postdoc

0.4 Calibrations, module installation, data taking

0.6 Software infrastructure, direct photon studies, jet reco, p+p analysis

1

Total per category

2.2 2.3 4.5

In addition: 0.5-1.0 FTE for PDSF

10RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Physics Activities 20102010 Project Support Simulations and Analysis Total

FTE Details FTE Details

Jacobs 0.4 Trigger, Project management, commissioning, data taking

0.6 Jet reconstruction, data analysis

1

Klein 0.1 data taking 0.1 UPC analysis 0.2

Odyniec 0.4 Calibrations, commissioning, data taking

0.6 data analysis: heavy quark jets, correlations

1

Putschke/ new postdoc

0.4 Trigger algorithms and hardware, commissioning, data taking

0.6 data analysis: jets, heavy flavor production

1

Ritter 0.2 Management, data taking 0.2

Symons 0.1 Management 0.1

Van Leeuwen/ new postdoc

0.4 Calibrations, commissioning, data taking

0.6 Software infrastructure, data analysis: direct photons and pi0, jet reco, correlations

1

Total per category

2 2.5 4.5

In addition: 0.5-1.0 FTE for PDSF

11RNC/LBNLALICE-US Review Germantown, May 23-24 2007

RNC:P. Jacobs (Deputy Contract Project Manager)S. KleinG. OdyniecJ. PutschkeH. RitterJ. SymonsM. van Leeuwen

LBNL Engineering:J. Rason(Deputy Contract Project Manager)

D. Peterson

Office of Nuclear PhysicsD. Kovar (Acquisition Executive)

J. Simon-Gillo(ALICE EMCal Program Manager)

LBNL Site OfficeA. Richards (Manager)

B. Savnik (Federal Project Director)

ALICE EMCal Project ManagementT.M. Cormier, LBNL/WSU

(Contractor Project Manager)J. Rasson, LBNL

(Deputy, Contractor Project Manager)P. Jacobs, LBNL

(Deputy, Contractor Project Manager)

ALICE Management BoardJ. Schukraft, CERN

ALICE EMCal Quality AssuranceJ. Rasson, LBNL (Acting)

ALICE EMCal Project ControlsD. Peterson, LBNL

EH&SALICE EMCal EH&S Liaison

L. Wahl (LBNL)

ALICE-USACollaboration Coordinator

J. Harris, Yale

Calibrate/TestSorenson, Tenn.

Conventional SystemsORNL, Catania

Slow ControlsCherney, Creighton

CommissionTrentalange, UCLASchambach, Texas

Mod. / Strip Mod.Mechanical/

Optical Assy./TestPetrov, WSU

Fiber SystemsWestfall, MSU

APD Test/IntegrateGhazikanian,UCLA

Super ModuleAssy./Calibrate

Witt (Yale)

L1 TriggerMuller, CERN

Bourrion, Grenoble

Trigger Commission ,TBD, LBNL

High Level TriggerPavlinov, WSU

Mechanical Integrationand Design

M. Dialinas, Nantes

ProductionJ. Riso, WSU

ElectronicsT. Awes, ORNL

Support StructureBercowitz, LBNL

Strip ModuleCarduner, Subatech

Installation ToolingStutzmann,Subatech

Super ModulePalmeri, Catania

DOE Contracting OfficerM. Robles

TriggerP. Jacobs, LBNL

ModuleRiso, WSU

ALICE InstallationL. Leistam, CERN

Conventional Systems

IntegrationKumpumaek CERN

Installation Infrastructure

Kumpumaek CERN

Host LaboratoryT.J. Symons, LBNL

(Director Nuclear Science Division)

DesignMuller, CERN

Integrated Project Team

On LineSilvermyr, ORNL

EMCal Project Participation

LBNL responsibilities: Project managementMechanical engineering oversightTriggerSoftware and computing (PDSF)Physics leadership

12RNC/LBNLALICE-US Review Germantown, May 23-24 2007

PDSFPDSF at NERSC:

• cost effective platform for large scale NP/HEP experimental computing• plays essential role in STAR• RNC contributes 1.5 FTE

PDSF in ALICE:

PDSF Requirements for ALICE 2007 2008 2009 2010

CPU added per year [MSi2K] 0.1 0.5 0.6 0.9

Cumulative CPU [MSi2K] 0.1 0.6 1.2 2.1

Disk added per year [PB] 0.0 0.1 0.2 0.3

Cumulative Disk [PB] 0.0 0.1 0.3 0.6

Annual HPSS volume [PB] 0.1 0.3 0.4 0.4

Costs and implementation: see Ron Soltz’s talkNSD contributes 0.5-1.0 FTE for ALICE

13RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Impact of ALICE participation on STARLBNL FY 2008

Ph.D. RHIC Research RHIC Upgrades ALICE Research

Total Effort (FTEs) 21.4 8.50 7.90 5.00

40% 37% 23%

Group Ph.Ds 20.0

ALICE-USA Ph.Ds: 7.0

LBNL FY 2010

Ph.D. RHIC Research RHIC Upgrades ALICE Research

Total Effort (FTEs) 21.4 3.10 13.3 5.00

15% 62% 23%

Group Ph.Ds 20.0

ALICE-USA Ph.Ds: 7.0

14RNC/LBNLALICE-US Review Germantown, May 23-24 2007

Summary of RNC at STAR and ALICE

ALICE: • EMCal project provides unique opportunity for highly visible, high impact new program that is fully consistent with RNC physics accomplishments and interests

targeted, limited effort focused on EMCal and its related physics

STAR: RNC participation will evolve in next ~3 years:• Expanded effort on STAR tracking upgrades• Correspondingly reduced STAR analysis effort• Current high pT group will migrate to ALICE by 2008

STAR jet physics and hard process analyses will be carried out by the existing “Soft Physics” group