1 / 26

30 30- -Nov

Outline. 30 30- -Nov. Nov- -00 00. W.A. Zajc W.A. Zajc. Beam Use Proposal. Requested input: Requested input:.  Desired “beam run segments” Desired “beam run segments”.  Physics from same Physics from same.  Collaboration/experiment status Collaboration/experiment status. 30

mwhitworth
Download Presentation

30 30- -Nov

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. Outline 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  2. Beam Use Proposal Requested input: Requested input: Desired “beam run segments” Desired “beam run segments” Physics from same Physics from same Collaboration/experiment status Collaboration/experiment status 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  3. Goals for Run-2  Detector: Commissioning of Detector: Commissioning of  New sub New sub- -systems systems  Integration of same into the detector Integration of same into the detector  Calibration of detector Calibration of detector  Trigger studies Trigger studies  Experiment: Experiment: “Complete” what we started in Run “Complete” what we started in Run- -1 1  Characterize properties of matter created in highest Characterize properties of matter created in highest energy Au energy Au- -Au collisions on all time scales Au collisions on all time scales  ~ “All” p ~ “All” pT Tscales (as permitted by luminosity) scales (as permitted by luminosity)  Begin program of J/ Begin program of J/Y measurements measurements  Obtain comparison data for same in p Obtain comparison data for same in p- -p collisions  Begin spin program. Begin spin program. p collisions 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  4. Request Summary (In priority order) (In priority order) sNN 200 GeV 1. Au 1. Au- -Au running at Au running at  Commission and calibrate Run Commission and calibrate Run- -2 detector  Accumulate 300 Accumulate 300 mb b- -1 1of Au 2 detector Au collisions of Au- -Au collisions 2. Commissioning of 2. Commissioning of  p p- -p collisions at p collisions at  Polarized proton collisions Polarized proton collisions s  200 GeV 3. A p 3. A p- -p comparison run at 200 GeV p comparison run at 200 GeV  Longitudinal polarization (> 50%) Longitudinal polarization (> 50%)  Accumulate 3.5 pb Accumulate 3.5 pb- -1 1 polarized polarized- -p on polarized p collisions p on polarized p collisions 4. Anything else 4. Anything else 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  5. Last March: Goals for “this” Run  Detector: Detector: Commissioning of Commissioning of All active sub All active sub- -systems Integration of same into a Integration of same into a detector Calibration of detector Calibration of detector  (Acquisition of large, minimally biased data set for (Acquisition of large, minimally biased data set for trigger studies) trigger studies)  Experiment: Experiment:  Characterize properties of matter created in highest Characterize properties of matter created in highest energy Au energy Au- -Au collisions on all time scales Au collisions on all time scales ( ( ~ ~ “All” p “All” pT Tscales) scales) Obtain comparison data for same in p Obtain comparison data for same in p- -p collisions  Maintain progress towards a spin run in Year Maintain progress towards a spin run in Year- -2 2 systems detector p collisions 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  6. Run-1 Summary  Commissioned Commissioned ~11 detector sub ~11 detector sub- -systems  Recorded Recorded ~5M minimum bias events ~5M minimum bias events  Excellent results on Excellent results on  Global event features Global event features  Identified hadrons Identified hadrons  “High” p “High” pT T systems  But: a long way to go towards But: a long way to go towards realizing full PHENIX potential realizing full PHENIX potential  New sub New sub- -systems systems  Increased bandwidth/triggering Increased bandwidth/triggering  Improved machine performance Improved machine performance 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  7. p0Extraction (Last March   MC)   2 1 E E E E 1 2  7 . 0 α   T  1.0 p 1.5 GeV/c 2.0 p 2.5 GeV/c T 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  8. p0Extraction (NOW   DATA!)  E E 1 2   8 . 0 α  E E 1 2  T 1.0 p 1.5 GeV/c  T 2.0 p 2.5 GeV/c 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  9. p0Spectrum (Last March   MC) Test of our ability to reconstruct Test of our ability to reconstruct p0 0’s in Au events: events:  20K central Au 20K central Au- -Au events Au events  Full simulation Full simulation  Calorimeter Calorimeter information information “only” (+BB) “only” (+BB) (That is, no (That is, no charged veto charged veto from from tracking) tracking)  Effects of Effects of  Detector Detector resolution resolution  Clustering Clustering well understood well understood ’s in Au- -Au Au 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  10. p0Spectrum (NOW   DATA!) Test of our ability to reconstruct Test of our ability to reconstruct p0 0’s in the real world: ’s in the real world:  1700K triggers 1700K triggers  570K after vertex selection 570K after vertex selection  Green: Green: As presented at DNP As presented at DNP  Blue Blue : Current analysis : Current analysis  Local Local slope: slope: 291 291   13 (stat) 13 (stat)   41 (syst) PHENIX PHENIX Preliminary Preliminary 41 (syst)  Effects of Effects of  Detector resolution Detector resolution  Clustering Clustering  Energy Scale Energy Scale  Normalization Normalization well understood well understood 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  11. More from “Last” Year Highest p Highest pT Telectron found in sample: electron found in sample: 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  12. EmCal In Situ Calibration MIP peak position for 1 GeV/c tracks MIP peak position vs track momentum AGS Test Beam: + Au-Au data: charged tracks E/p matching for p>0.5 GeV/c tracks All tracks Electron enriched sample (using RICH) 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  13. Submitted for Quark Matter ‘01 See See Submitted as posters: Submitted as posters: S.C. Johnson: First Results on Two S.C. Johnson: First Results on Two- -Particle Correlations Determined by the PHENIX Experiment at RHIC Determined by the PHENIX Experiment at RHIC S. White: Calorimetry and Global Event Characterization in S. White: Calorimetry and Global Event Characterization in PHENIX PHENIX S. Adler: The PHENIX Timing System S. Adler: The PHENIX Timing System S. Botelho: The PHENIX Time Expansion Chamber at RHIC S. Botelho: The PHENIX Time Expansion Chamber at RHIC M. Chiu: The PHENIX Data Acquisition System M. Chiu: The PHENIX Data Acquisition System L. Ewell: The PHENIX Online Computing System L. Ewell: The PHENIX Online Computing System T.K. Gosh: Wavelet Analysis In Search Of Disoriented Chiral T.K. Gosh: Wavelet Analysis In Search Of Disoriented Chiral Condensate at Condensate at 130 A*GeV Au + Au Collisions at RHIC 130 A*GeV Au + Au Collisions at RHIC S.V. Greene: The Design and Performance of the PHENIX Pad S.V. Greene: The Design and Performance of the PHENIX Pad Chambers Chambers A.G. Hansen: The PHENIX Multiplicity Vertex Detector A.G. Hansen: The PHENIX Multiplicity Vertex Detector A.S. Hoover: The PHENIX South Muon Tracking System A.S. Hoover: The PHENIX South Muon Tracking System J. Lajoie: The PHENIX Muon Identifier Local Level J. Lajoie: The PHENIX Muon Identifier Local Level- -1 Trigger System System Y. Mao: The PHENIX Muon Identifier Subsystem Y. Mao: The PHENIX Muon Identifier Subsystem Y. Miake: Performance of the Time Y. Miake: Performance of the Time- -of G.C. Mishra: The PHENIX Event Builder G.C. Mishra: The PHENIX Event Builder P. Nilsson: The Readout System for the PHENIX Pad Chambers P. Nilsson: The Readout System for the PHENIX Pad Chambers I. D. Ojha: Comparison of Event Generator Predictions for the I. D. Ojha: Comparison of Event Generator Predictions for the Charged Particle Multiplicity of Au+Au at 130 A*GeV Measured Charged Particle Multiplicity of Au+Au at 130 A*GeV Measured in the PHENIX Acceptance in the PHENIX Acceptance T. Sakaguchi: Performance of the PHENIX Ring Imaging T. Sakaguchi: Performance of the PHENIX Ring Imaging Cherenkov Detector Cherenkov Detector T. Sugitate: Performance of the Beam T. Sugitate: Performance of the Beam- -Beam Counter in PHENIX PHENIX H. Torii: Performance of the PHENIX EM Calorimeter in PHENIX H. Torii: Performance of the PHENIX EM Calorimeter in PHENIX G.R. Young: Custom Integrated Circuit Development for Front G.R. Young: Custom Integrated Circuit Development for Front End Electronics in PHENIX End Electronics in PHENIX  http://www.phenix.bnl.gov/phenix/WWW/forms/ http://www.phenix.bnl.gov/phenix/WWW/forms/ info/view.html info/view.html) )  Physics abstracts submitted: Physics abstracts submitted:  pT spectra of identified hadrons: Julia pT spectra of identified hadrons: Julia Velkovska Velkovska  Charged particle multiplicity distributions: Sasha Charged particle multiplicity distributions: Sasha Milov Milov  ET: Sasha Bazilevsky ET: Sasha Bazilevsky  Elliptic Flow: Roy Lacey Elliptic Flow: Roy Lacey  HBT correlations: Steve Johnson HBT correlations: Steve Johnson  Ratios of particle yields: Hiroaki Ohnishi Ratios of particle yields: Hiroaki Ohnishi  Inclusive photon and pi Inclusive photon and pi- -zero production: Gabor David David  High pT correlations: Federica Messer High pT correlations: Federica Messer  Electron Spectra in PHENIX: Yasuyuki Akiba Electron Spectra in PHENIX: Yasuyuki Akiba  Participant scaling: Klaus Reygers Participant scaling: Klaus Reygers  Instrumentation abstracts: Instrumentation abstracts:  Charged particle tracking (central and muon): Charged particle tracking (central and muon): Ed O'Brien Ed O'Brien  Calorimetry and global detectors: Sebastian Calorimetry and global detectors: Sebastian White White  Particle ID (central and muon): Hideki Particle ID (central and muon): Hideki Hamagaki Hamagaki  Online & Computing (FEE through Offline): Online & Computing (FEE through Offline): Martin Purschke Martin Purschke Particle Correlations          zero production: Gabor  1 Trigger   of- -Flight Counter in PHENIX Flight Counter in PHENIX      Beam Counter in    30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  14. Year-2 Improvements  Essentially complete recovery of the “baseline” Essentially complete recovery of the “baseline” PHENIX detector PHENIX detector  PC2 and PC3 for West Arm PC2 and PC3 for West Arm  Increase MVD coverage Increase MVD coverage  Remaining 4 sectors of EmCal electronics (RIKEN) Remaining 4 sectors of EmCal electronics (RIKEN)  Level Level- -1 EmCal trigger (RBRC) 1 EmCal trigger (RBRC)  L1 RICH trigger, Data Collection Modules (US L1 RICH trigger, Data Collection Modules (US- -J)  Remaining 2 sectors of TEC electronics (UCR + DOE) Remaining 2 sectors of TEC electronics (UCR + DOE)  Plus Plus  Installation of South Muon Magnet + Tracker Installation of South Muon Magnet + Tracker  Plans for bandwidth recovery Plans for bandwidth recovery  DCM’s: DOE Medium Energy DCM’s: DOE Medium Energy  EvB : GSU EvB : GSU  Production of North Arm tracker mechanics Production of North Arm tracker mechanics  Funding for North Arm tracker FEE Funding for North Arm tracker FEE (new French collaborators) (new French collaborators) J) 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  15. In Pictures For 2001 Run: For 2001 Run: 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  16. In (Real) Pictures  Muon Tracking Status Muon Tracking Status  All 3 tracking stations All 3 tracking stations installed installed  All electronics installed All electronics installed  Gas, HV, alignment Gas, HV, alignment ongoing ongoing  ON SCHEDULE ON SCHEDULE  Muon Identifier Status Muon Identifier Status  All panels installed and tested All panels installed and tested  Engineering run last summer Engineering run last summer  All electronics available Jan All electronics available Jan- -01  Infrastructure work ongoing Infrastructure work ongoing  ON SCHEDULE ON SCHEDULE 01 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  17. More Improvements Significant addition to PHENIX: Significant addition to PHENIX:  French/South Korea groups French/South Korea groups  LPC LPC- -Clermont, Univ. Clermont Clermont, Univ. Clermont- -Ferrand,CNRS  Kangnung National University, Kangnung 210 Kangnung National University, Kangnung 210- -702, South Korea.  SubaTech, EMN, Univ. de Nantes, CNRS SubaTech, EMN, Univ. de Nantes, CNRS- -IN2P3, Nantes, France.  IPN IPN- -Orsay, Univ. Paris Sud, CNRS Orsay, Univ. Paris Sud, CNRS- -IN2P3, Orsay, France.  LPNHE LPNHE- -Palaiseau, Ecole Polytechnique, CNRS Palaiseau, Ecole Polytechnique, CNRS- -IN2P3, Palaiseau, France. France.  Dapnia, CEA, Saclay, France. Dapnia, CEA, Saclay, France.  Seoul National University, Seoul, South Korea. Seoul National University, Seoul, South Korea.  Cyclotron Application Laboratory, Seoul, South Korea Cyclotron Application Laboratory, Seoul, South Korea  Major responsibility for Major responsibility for  North Muon Arm front end electronics North Muon Arm front end electronics  PHENIX CC PHENIX CC- -F (local computing center at Lyon) F (local computing center at Lyon) Ferrand,CNRS- -IN2P3, France. IN2P3, France. 702, South Korea. IN2P3, Nantes, France. IN2P3, Orsay, France. IN2P3, Palaiseau, 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  18. Run Segments  Assumptions: Assumptions:  A total period of 25 weeks for beam availability A total period of 25 weeks for beam availability  RHIC duty factor = 50% RHIC duty factor = 50%  PHENIX duty factor = 50% PHENIX duty factor = 50%  Collision region rms = 20 cm. Collision region rms = 20 cm.  All running at All running at  Au Au- -Au segment of 17 weeks: Au segment of 17 weeks:  First 7 weeks: First 7 weeks:  RHIC: commissioning from ~10% to 100% of design luminosity RHIC: commissioning from ~10% to 100% of design luminosity  PHENIX: Commissioning, calibrating, start of data PHENIX: Commissioning, calibrating, start of data- -taking  Last 10 weeks: Last 10 weeks:  Running at ~100% of design luminosity (2 x 10 Running at ~100% of design luminosity (2 x 1026  300 300 mb b- -1 1of integrated luminosity recorded of integrated luminosity recorded  p p- -p segment of 8 weeks p segment of 8 weeks  2 weeks to commission collisions 2 weeks to commission collisions  1 week to commission polarization (> ~50%) 1 week to commission polarization (> ~50%)  5 weeks of polarized running at 5 x 10 5 weeks of polarized running at 5 x 1030  3.5 pb 3.5 pb- -1 1of integrated luminosity recorded: of integrated luminosity recorded: sNN 200 GeV taking 26cm cm- -2 2s s- -1 1) ) 30cm cm- -2 2s s- -1 1 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  19. Physics from Requested Segments  Au Au- -Au:  3M  30K J/ 30K J/Y   m+ +m- -in South Arm  6K J/ 6K J/Y   e e+ +e e- -in Central Arms  15K (charm) e’s with p 15K (charm) e’s with pT T> 2 GeV/c (central 10%) (central 10%)  ~ 20 ~ 20 p0 0’s / GeV at p ’s / GeV at pT T= 25 GeV/c  p p- -p comparison data: p comparison data:  Measurement of same probes as in Measurement of same probes as in Au Au- -Au with roughly half the Au with roughly half the statistical precision statistical precision  Polarized Polarized- -p on Polarized p on Polarized- -p:  An essential start on An essential start on understanding systematics understanding systematics in these measurements in these measurements  A first look at A first look at DG G Au: 3M F   K K+ +K K- -decays decays in South Arm in Central Arms > 2 GeV/c = 25 GeV/c p: 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  20. Au-Au Measurements Required Elements Available Run-2? Timescale Probe Hard Scattering Single "jet" via leading particle photon + "jet" High-Mass Vector Mesons J/Y , Y 'screening U (non)screening Initial Collision  Physics reach: Physics reach:  An extensive An extensive program program addressing all addressing all collision collision timescales timescales  (This list not (This list not necessarily necessarily complete) complete) E,W Yes ? E and W Deconfinement N, S, E+W N,S Yes No Low-Mass Vector Mesons r, w, f mass, width f branching ratios Chiral Restoration E+W E+W Yes Yes QGP Thermalization Photons p0, h, h ' continuum direct; very soft E,W E,W Yes ? QGP Thermalization Dileptons non-resonant: 1-3 GeV soft continuum, <1 GeV N,S,E+W E+W Yes? No QGP Thermalization Heavy Quark Production open charm open charm via single lepton (N or S) + E N,S,E Yes? Yes Hadrons HBT Interferometry, p/K strangeness production: K, f spectra of identified hadrons Hadronization E E E Yes Yes Yes Global Variables ET, dN/dy Hydrodynamics 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc E, MVD Yes

  21. Run Planning for RHIC  Available FY01 inadequate for additional commissioning and programmatic Available FY01 inadequate for additional commissioning and programmatic needs of RHIC. needs of RHIC.  Colliders require extended running to Colliders require extended running to  Maximize luminosity Maximize luminosity  Develop stable operations Develop stable operations (Cf. Tevatron, HERA) (Cf. Tevatron, HERA)  Short runs maximize end effects Short runs maximize end effects (very non (very non- -trivial at a cryogenic machine) trivial at a cryogenic machine)  RHIC in Run RHIC in Run- -2 is a new machine 2 is a new machine  we must “pay” the commissioning “bill” we must “pay” the commissioning “bill”  “Solutions” that avoid p “Solutions” that avoid p- -p running p running delay delay by 1 year or more quantitative baseline comparisons baseline comparisons  “Solutions” that do not include spin running “Solutions” that do not include spin running  Delay Delay measurement of measurement of DG by at least one year G by at least one year  Put at risk Put at risk BNL’s primacy in this measurement BNL’s primacy in this measurement  Ignore Ignore international contributions to the spin program international contributions to the spin program  All All of these factors argue for of these factors argue for combining the FY01 and FY02 run periods combining the FY01 and FY02 run periods  N.B. N.B. 1 nominal RHIC run per 2 fiscal years is 1 nominal RHIC run per 2 fiscal years is not by 1 year or more quantitative not a long term solution! a long term solution! 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  22. Plan A vs. Plan B PHENIX strongly prefers “B” PHENIX strongly prefers “B”  Reduced end effects Reduced end effects  Long period of luminosity growth and data Long period of luminosity growth and data- -taking  Timely spin run Timely spin run  Provides optimal (timing and length) shutdown for Provides optimal (timing and length) shutdown for North Muon Installation North Muon Installation taking 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  23. Year-3 and Beyond 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  24. Looking Ahead Year Year- -3: (Subject to the usual caveats (Subject to the usual caveats about surprises and flexibility): about surprises and flexibility):  Heavy Ions Heavy Ions  Fully operational muon arm Fully operational muon arm + new triggers + new triggers  Full exploration of J/ Full exploration of J/Y production versus “N versus “Nbinary  A long run with Au A long run with Au- -Au  A series of shorter light ion runs A series of shorter light ion runs  p p- -A or d A or d- -A running A running  Spin Spin Continued running to accumulate Continued running to accumulate 320 pb 320 pb- -1 1at 200 GeV at 200 GeV 3: production binary” ~ A(b)*A(b) via ” ~ A(b)*A(b) via Au og10binar y Species Number of J/Y's (0.6 R.Y. - AuAu, 0.1 R.Y. - others) 1.15E+05 1.44E+05 1.56E+05 1.73E+05 1.79E+05 OO SiSi CuCu II AuAu 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  25. Possible Run Plan (Largely for ions; significant spin running each year is assumed) (Largely for ions; significant spin running each year is assumed)  Year Year- -2: 2:  Au+Au, crude p Au+Au, crude p- -p comparison run p comparison run  First look at J/ First look at J/Y production, high p production, high pT T  Year Year- -3: 3:  High luminosity Au+Au (60%) of HI time High luminosity Au+Au (60%) of HI time  High luminosity light ions (40%) of HI time High luminosity light ions (40%) of HI time  Detailed examination of A*B scaling of J/ Detailed examination of A*B scaling of J/Y yield  Year Year- -4: 4:  p p- -d/p d/p- -p comparisons p comparisons  Baseline data for rare processes Baseline data for rare processes  Year Year- -5: 5:  “Complete” p “Complete” p- -A program with p A program with p- -Au  Energy scans Energy scans  Systematic mapping of parameter space Systematic mapping of parameter space yield Au 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

  26. Summary  Proposed program Proposed program  Thorough study of Thorough study of highest highest- -mass, highest  Measurement of p Measurement of p- -p collisions to characterize p collisions to characterize baseline physics baseline physics  Start on spin physics Start on spin physics  Maximal overlap with machine development of Maximal overlap with machine development of  Stable operations Stable operations  Spin running Spin running  Experiment will be ready to implement this Experiment will be ready to implement this program (detector and analysis chain) program (detector and analysis chain)  Collaboration committed to Collaboration committed to  Safe and systematic operation of PHENIX Safe and systematic operation of PHENIX  Production of physics data Production of physics data mass, highest- -energy collisions ever made energy collisions ever made 30 30- -Nov Nov- -00 00 W.A. Zajc W.A. Zajc

More Related