RHIC II Science Workshop

1
RHIC II Science Workshop November 11-12, 2005
The QCD LAB
2
A timeline for physics operation, detector
upgrades, machine evolution
FY 2006 FY 2007 FY 2008 FY 2009 FY 2010 FY 2011 FY 2012
High statistics Au Au 500 GeV Spin Runs
Au-Au, d-Au, Ion scans pp 200 pp 500 development
Short-term upgrades HBD, TOF, DAQ, FMS,
Muon Trigger
Mid-Term Upgrades Vtx detectors, NCC, forward
tracking
RHIC II Construction
EBIS
Machine and detector RD continued luminosity
improvements eRHIC development
LHC Heavy Ion Program
3
RHIC II Science Workshops A science vision for
the RHIC future Begun November, 2004
Provide a science case for the future RHIC
program that makes clear its importance in the
broad scientific arena, including a future Long
Range Plan.
Some questions raised by the Barnes
Committee What are the most crucial measurements
to be made at RHIC over the next decade? What
compelling new insights would these measurements
bring to our understanding of fundamental issues
of broad scientific interest? Of these
measurements, which ones require detector or
collider upgrades? Which ones are uniquely
addressed at RHIC in the LHC era? What unique
scientific opportunities would be lost if RHIC
were not upgraded?
Steering Committee U. Heinz, B. Jacak, D.
Kharzeev, D. Morrison, G. Roland, E. Shuryak, T.
Ullrich, W. Vogelsang, Z. Xu
4
The Science Driving RHIC Upgrades

• QCD at high temperature and density What is
  the physics of superdense, strongly-interacting
  matter?
• QCD at high energy and low x What is the
  physics of strong color fields?
• QCD and the structure of hadrons What is the
  origin of nucleon spin?

• Fundamental questions for experiment
• Properties of QGPsQGP
• Thermalization
• Deconfinement
• Connections with E-M plasma properties
• Properties of gluonic matter
• Gluon spin in the nucleon
• Polarization of the quark sea
• Transverse spin in QCD

Key Observables
5
Seven Working GroupsEach has three
convenors www.bnl.gov/physics/rhicIIscience
Electromagnetic Probes Ralf Rapp, Zhangbu Xu,
Gabor David Heavy Flavor Ramona Vogt, Thomas
Ullrich, Tony Frawley High pT Denes Molnar,
Saskia Mioduszewski, Kirill Filimonov Equation
of State Steffen Bass, Julia Velkovska, Helen
Caines
Forward Physics pA Kirill Tuchin, Mike
Leitch, Carl Gagliardi Spin and pp Marco
Stratmann, Matthias Grosse- Perdekamp, Ernst
Sichtermann New Directions Berndt Mueller, Jamie
Nagle, Peter Steinberg
Open workshops Nov. 2004, April 2005, June 2005
6
This Workshop

• Working Group Summaries
• Aim for detailed written reports, directed at
  RHIC community
• Initiate work on Final White Paper
• Overview summary aimed at broader NP general
  scientific community
• Writing Committee

• The goal for this workshop is to settle on the
  content and packaging of the White Paper
• Identify the main points (Tonys A List
  measurements)
• What level of detail?
• Open questions (e.g. further work needed
  simulation, theory)
• Identify the target audience
• Set up the process for getting it done
• Writing assignments, schedule, future meetings

7
White Paper Writing Committee Mark Baker Tony
Frawley (co-Chair) Carl Gagliardi
(co-Chair) Ulrich Heinz Matthias
Grosse-Perdekamp Tim Hallman John Harris Larry
McLerran Saskia Mioduszevski Berndt Mueller Jamie
Nagle Julia Velkovska Steve Vigdor Xin-Nian
Wang Zhangbu Xu Bill Zajc
8

• Time Scales
• Working Group final written reports Dec. 31
• First draft White Paper -- Mid January, 2006
• Another workshop?
• Final White Paper - End of February, 2006

Dates tied to Submission of Mid-term Plan DOE
08 Budget process Next LRP
Jan. 31, 2006
Retreat Mar. 2006 2007?
9
Guiding questions for the Working Groups

1. What are the physics goals of your measurements,
   and how central are they to our understanding of
   nature?
2. What exactly can you measure? How exactly do
   these measurements serve to clarify the physics
   goals?
3. Which of these measurements requires 10x the
   present luminosity?
4. Why should these measurements be made at RHIC
   rather than LHC?