Creighton UniversityALICE - USA

Michael Cherney

May 23, 2007

Creighton and ALICE

• Slow controls presentation at ALICE – September, 2001

• Membership in ALICE– Offered Fall 2001– Accepted Fall 2002

• Primary Source of Funding– DOE EPSCoR

Contributions to ALICE

• Hardware Controls– Controls Infrastructure– ITS Alignment System Controls– EMC Hardware Controls

• Physics– EMC Jet Triggering Studies

• Christopher Anson, MS Thesis (2006)

– UPC Triggering

Commitments to STAR

• Hardware Controls– Responsible for Controls– Moving Majority of the System from VME to PC’s– Integration of Upgrade Subsystems– On-Site Expert during Setup and Run

• Physics– UPC Physics

• Convener - Janet Seger• Rho Production• J/psi Production• Giant Dipole Resonances

– D* production in pp collisions

Commitments to Outreach

• Cosmic Rays– High School Students

• CROP Network

– Introductory Students

• Nuclear Science Introduction– Gifted Middle School Students– Gifted High School Students– Boy Scouts

Creighton Staff

• Faculty– Michael Cherney (DOE summer support)– Janet Seger (DOE summer support)– Thomas McShane

• Permanent Staff– Jiro Fujita (Computing Support)– Brad Walters (Machinist)

• Postdocs– Yury Gorbunov (DOE support)– William Waggoner (DOE support)

Students• Graduate Students

– Kimberly Kirchner (DOE support)– Lyle Sass– Eric Watson

• Undergraduate Students– Abbie Bauer– Matt Brnicky– Jennie Burns– Joseph Butterworth (DOE support)– Robert Thomen– Kristen Wakin (DOE summer support)

Expected Changes in Funding

• EPSCoR funding will end in December

• Expected changes in manpower– Currently 2 postdocs (2.0 grant-funded FTE)– Expected 1 postdoc (1.0 grant-funded FTE) and

1 permanent staff (0.2 university-funded FTE)

• Reduction in outreach effort

• Keep research efforts at same level

Projected Effort

• Current Distribution of Effort– STAR 4.1 FTE– ALICE 1.8 FTE– Outreach 1.9 FTE

• Proposed Distribution of Effort– STAR 4.1 FTE– ALICE 1.8 FTE– Outreach 1.1 FTE

UPC Physics at ALICE• Field is Lorentz contracted

• GSI = 1 electrons• RHIC = 200 rhos• LHC = 5500 heavy flavors

• Much larger energy density • u = ½ 0 E2

• Production is limited by coherence

• Some more massive particles• Many less massive particles• Experiment is leading theory

Joackim Nystrand

J/ mass spectrum from

a month of running at

ALICE

J/psi Production in UPC’s

• Full ALICE simulation done• Trigger studies presented

at October ALICE meeting

J/ mass spectrum from

a month of running at

STARPreliminary

Inv. Mass

EMC has value in tagging electrons

UPC measurements of Rho

cross section as a function of energy– Expected to be 10x greater than at RHIC

incoherent vs. coherent production

• Straight forward Day 1 measurement which does not require pid

• Comes almost “at no cost” as background in other measurements

Upsilon Production in UPC’s

Simulated Reconstruction of Muon Signal

Simulated Reconstruction of Electron Signal

Simulated Reconstruction of TPC Acceptance for Electrons

Simulated Reconstruction of TPC Acceptance for Electrons

Simulated Reconstruction of TPC Acceptance for Muons

Simulated Reconstruction of TPC Acceptance for Muons

Slow Controls for ITS

• Laser Alignment System– With The Ohio State University

EMC Controls

EMC Control – High Voltage

• Test System at CERN (Summer 2006)

EMC Controls - RCU

• Test System at BNL (Summer 2006)

EMC Controls - Temperature

• Test System at Creighton

Summary

• Returning to Pre-EPSCoR Funding• Seeking Blessing for Continuing

Present Program– Controls– Ultra-Peripheral Collisions

• Seeking Blessing for Continuing Present Division of Experimental Effort– STAR (70% of experimental work)– ALICE (30% of experimental work)– Outreach will be impacted