Creighton

					Creighton University
    ALICE - 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/psi Production in UPC’s
J/ mass spectrum              J/ mass spectrum
  from a month of                from a month of
 running at STAR                running at ALICE


               Preliminary




                                               Inv. Mass



                             • Full ALICE simulation done
  EMC has value in tagging
        electrons            • Trigger studies presented
                               at October ALICE meeting
  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   Simulated Reconstruction of     Simulated Reconstruction of
       Muon Signal            TPC Acceptance for Muons        TPC Acceptance for Muons




Simulated Reconstruction of    Simulated Reconstruction of    Simulated Reconstruction of
      Electron Signal         TPC Acceptance for Electrons   TPC Acceptance for Electrons
      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

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:0
posted:1/26/2013
language:Unknown
pages:19