1 / 16

RHIC II Scope, Strategy, Plans

RHIC II Scope, Strategy, Plans T. Ludlam RHIC II Spin Physics Workshop Oct. 7, 2005 TANDEMS Gold Ion Collisions in RHIC Beam Energy = 100 GeV/u RHIC 9 GeV/u Q = +79 BOOSTER AGS 1 MeV/u Q = +32 RHIC polarized proton accelerator complex RHIC pC Polarimeters

albert
Download Presentation

RHIC II Scope, Strategy, Plans

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RHIC II Scope, Strategy, Plans T. Ludlam RHIC II Spin Physics Workshop Oct. 7, 2005

  2. TANDEMS Gold Ion Collisions in RHIC Beam Energy = 100 GeV/u RHIC 9 GeV/u Q = +79 BOOSTER AGS 1 MeV/u Q = +32

  3. RHIC polarized proton accelerator complex RHIC pC Polarimeters Absolute Polarimeter (H jet) BRAHMS PHOBOS Siberian Snakes Siberian Snakes PHENIX STAR Spin Rotators (longitudinal polarization) Spin flipper Spin Rotators (longitudinal polarization) Solenoid Partial Siberian Snake Pol. H- Source LINAC BOOSTER Helical Partial Siberian Snake AGS 200 MeV Polarimeter AGS Internal Polarimeter Rf Dipole AGS pC Polarimeters Strong Helical AGS Snake

  4. The Long Term Vision: RHIC as a QCD Laboratory Facility upgrades: EBIS funded for FY 06 start Detector upgrades first steps underway RHIC II luminosity upgrade -- e-cooling eRHIC

  5. The Evolution of RHIC • Processes are in place with the community to refine and articulate the sciencegoals… • RHIC II Science Workshops (like this one) • eRHIC Workshops (led by A. Deshpande) • Budget issues dominate in the short term • It is up to us to make the case in the NP community! i.e. the next Nuclear Physics Long Range Plan

  6. 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 QGP…sQGP • 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 Crucial measurements Compelling new insights Unique opportunities

  7. A Long Term Strategic View ~2012 2008 RHIC II Construction RHIC Luminosity & Det. upgrade Short term upgrades eRHIC Constr. Midterm Upgrades E beam + new detector RHIC Spin LHC Heavy Ion

  8. Future plans for RHIC Machine PerformanceTh. Roser • Machine goals for next few years with upgrades in progress: • Enhanced RHIC luminosity (112 bunches, b* = 1m): • Au – Au: 8  1026 cm-2 s-1 (100 GeV/nucleon) • For protons also 2  1011 protons/bunch (no IBS): • p – p: 60  1030 cm-2 s-1; 70 % polarization (100 GeV) 150  1030 cm-2 s-1; 70 % polarization (250 GeV)(luminosity averaged over store delivered to 2 IRs) • EBIS: low maintenance linac-based pre-injector; all species incl. U and pol. He3. Funded in FY 2006; Operational in 2010 • RHIC II luminosity upgrade: e-cooling, ~10  more luminosity. R&D in progress 2 achieved 6 achieved

  9. RHIC Luminosity Upgrade with Electron Cooling Gold collisions (100 GeV/n x 100 GeV/n): w/o e-cooling with e-cooling Emittance (95%) pmm 15  40 15  3 Beta function at IR [m] 1.0 1.0  0.5 Number of bunches 112 112 Bunch population [109] 1 1  0.3 Beam-beam parameter per IR 0.0016 0.004 Ave. store luminosity [1026 cm-2 s-1] 8 70 Pol. Proton Collision (250 GeV x 250 GeV): Emittance (95%) pmm 20 12 Beta function at IR [m] 1.0 0.5 Number of bunches 112 112 Bunch population [1011] 2 2 Beam-beam parameter per IR 0.007 0.012 ? Ave. store luminosity [1032 cm-2 s-1] 1.5 5.0

  10. Electron-Ion Collider at RHIC: eRHIC • 10 GeV, 0.5 A e-ring with 1/3 of RHIC circumference (similar to PEP II HER) • 10 GeV electron beam  s1/2 for e-A : 63 GeV/u; s1/2 for e-p: 100 GeV • Electron cooling required for high luminosity e-A and low energy e-p collisions • Polarized e-He3 (e-n) collisions with EBIS • Existing RHIC interaction region allows for typical asymmetric detector • Luminosity: up to 1  1033 cm2s1 per nucleon (1  1034 cm2s1 with linac – ring scheme) BNL, MITcollaboration

  11. STAR Upgrades DAQ and TPC-FEE upgrade Full Barrel Time-of-Flight system Forward Meson Spectrometer Magnet Barrel EMC End Cap EMC Beam-Beam Counters Forward po Det. TPC ZDC VPD’s (TOF Start) Photon Mult. Det. Forward triple-GEM EEMC tracker FTPC’s Integrated Tracking Upgrade Forward silicon tracker HFT pixel detector Barrel silicon tracker

  12. FCAL • Charged Particle Tracking: • Drift Chamber • Pad Chamber • Time Expansion Chamber/TRD • Cathode Strip Chambers(Mu Tracking) • Forward Muon Trigger Detector • Si Vertex Tracking Detector- Barrel (Pixel + Strips) • Si Vertex Endcap (mini-strips) • Particle ID: • Time of Flight • Ring Imaging Cerenkov Counter • TEC/TRD • Muon ID (PDT’s) • Aerogel Cerenkov Counter • Multi-Resistive Plate Chamber Time of Flight • Hadron Blind Detector • Calorimetry: • Pb Scintillator • Pb Glass • Nose Cone Calorimeter • Event Characterization: • Beam-Beam Counter • Zero Degree Calorimeter/Shower Max Detector • Forward Calorimeter • Data Acquisition: • DAQ Upgrade The Upgraded PHENIX Detector • Detector Redundancy • Fine Granularity, Mass Resolution • High Data Rate • Good Particle ID • Limited Acceptance • Charged Particle Tracking: • Drift Chamber • Pad Chamber • Time Expansion Chamber/TRD • Cathode Strip Chambers(Mu Tracking) • Particle ID: • Time of Flight • Ring Imaging Cerenkov Counter • TEC/TRD • Muon ID (PDT’s) • Aerogel Cerenkov Counter • Calorimetry: • Pb Scintillator • Pb Glass • Event Characterization: • Multiplicity Vertex Detector (Si Strip,Pad) • Beam-Beam Counter • Zero Degree Calorimeter/Shower Max Detector • Forward Calorimeter SMD/ FCAL

  13. RHIC Upgrades Overview X upgrade critical for success O upgrade significantly enhances program A. Drees 4/4/05

  14. Detector Upgrades Timeline “Mid-Term Strategy” presently under discussion High statistics Au Au; 500 GeV Spin Runs TOF and VTX construction; Muon trigger + “Small” upgrades: HBD, FMS, DAQ Mid-Term upgrades PHENIX NCC, FVTX; STAR HFT & Inner Tracker RHIC II construction RHIC Detector R&D LHC Heavy Ion Program

  15. The Output from these Workshops… RHIC II Science Whitepaper A study of physics opportunities for the coming decade Overview and conclusions-- drawn from Working Group Reports -writing committee- • What are the Critical Measurements? • What compelling new insights will these measurements bring to our understanding of fundamental issues of broad scientific interest? • Of these measurements, which ones require detector and/or collider upgrades? Which ones could be uniquely addressed at RHIC in the LHC era? • What unique scientific opportunities would be lost if RHIC were not upgraded? • The arc from RHIC to RHIC II to eRHIC

  16. Time Scale • Workshop November 11-12 at BNL: • “final” results from Working Groups • Writing Committee in place – • Lay out document with Working Group convenors • Coordinate with PAC Meeting – • preliminary reports to PAC Nov. 3-4 • Aim to complete the White Paper document by February 2006 • This puts it in play for the FY 2008 budget cycle • Starting point for 2007 Long Range Plan document

More Related