nu xu1/17star decadal plan meeting at uic, september 10 th, 2010 star experiment: status &...

Nu Xu 1/17STAR Decadal Plan Meeting at UIC, September 10th, 2010

STAR Experiment: Status & Future

- Spin Structure of Proton

- Properties of QCD Matter at Extreme Conditions

- QCD Phase Structure Nu Xu

Nuclear Science Division

Lawrence Berkeley National Laboratory

Berkeley, CA 94720, USA


STAR Experiment

STAR Experiment at RHIC( http://www.star.bnl.gov/ )

Fundamental science: particle physics, nuclear physics, astrophysics, cosmology, …

State of art technology: detector R&D, simulations, IT, computing, mass/fast data managing, …

- 550 scientists- 55 institutes- 13 countries- 130 PhD thesis since 2001

http://www.star.bnl.gov/


STAR Physics Focus

Polarized p+p program - Study proton intrinsic properties

Forward program - Study low-x properties, initial condition,

search for CGC - Study elastic and inelastic processes in

pp2pp

1) At 200 GeV top energy - Study medium properties, EoS - pQCD in hot and dense medium

2) RHIC beam energy scan (BES) - Search for the QCD critical point - Chiral symmetry restoration


BNL PAC, 21 - 22, 2010

HFT 2013

TPC

FGT 2011

STAR Detectors Fast and Full azimuthal particle identification

EMC+EEMC+FMS(-1 ≤ ≤ 4)TOF

DAQ1000

MTD 2013


Particle Identification at STAR

STAR TPC

STAR ToF

STAR EMC

STAR HFT

Neutral particles Strange Jets Heavy Quark hyperons Hadrons

Multiple-fold correlations among the identified particles!

e, μ

πK p d

TPC ToF TPC

Log10(p)

STAR MTD

http://www.star.bnl.gov/protected/spectra/ruanlj/TOFrpaper/tofr_beta_p_prplot.gif


HFT: Charm Hadron v2 and RAA

- 200 GeV Au+Au m.b. collisions (500M events). - Charm hadron collectivity drag/diffusion constants

- Medium properties! - Light quark thermalization!

- 200 GeV Au+Au m.b. collisions (|y|<0.5 500M events)- Charm hadron RAA

- Energy loss mechanism! - QCD in dense medium!


STAR Upgrade Timeline*

*Upgrades - Funding driven schedules

Upgrade Completion Key Physics Measurements

FMS Completed 2008(a) Trans. Asymmetry at forward-y(b) CGC

TPC DAQ1000 Completed 2009 Minimal dead time, large data set

MRPC TOF Completed 2010 Fast PID in full azimuthal acceptance

Forward GEM Tracker

Summer 2011Ready for Run 12

Forward-y W± for flavor separated quark polarization

Heavy Flavor TrackerSummer 2013

Ready for Run 14

(a) Precision hadronic ID for charm and Bottom hadrons

(b) Charm and Bottom hadron energy loss and flow

Muon Telescope Detector

Summer 2013Ready for Run 14

(a) High pT muon trigger(b) Quarkonia states

pp2pp’Summer 2014

Ready for Run 15


Year # Milestone

2013 HP8 Measure flavor-identified q and qbar contributions to the spin of the proton via the longitudinal-spin asymmetry of W production.

2013 HP12(update of HP1)

Utilize polarized proton collisions at center of mass energies of 200 and 500 GeV, in combination with global QCD analyses, to determine if gluons have appreciable polarization over any range of momentum fraction between 1 and 30% of the momentum of a polarized proton.

2015 HP13(new)

Test unique QCD predictions for relations between single-transverse spin phenomena in p-p scattering and those observed in deep-inelastic lepton scattering

2014 DM9(new)

Perform calculations including viscous hydrodynamics to quantify, or place an upper limit on, the viscosity of the nearly perfect fluid discovered at RHIC.

2014 DM10(new)

Measure jet and photon production and their correlations in A≈200 ion+ion collisions at energies from medium RHIC energies to the highest achievable energies at LHC.

2015 DM11(new)

Measure bulk properties, particle spectra, correlations and fluctuations in Au+Au collisions at √sNN between 5 and 60 GeV to search for evidence of a critical point in the QCD matter phase diagram.

2016 DM12(new)

Measure production rates, high pT spectra, and correlations in heavy-ion collisions at √sNN = 200 GeV for identified hadrons with heavy flavor valence quarks to constrain the mechanism for parton energy loss in the quark-gluon plasma.

2018 DM13(new)

Measure real and virtual thermal photon production in p+p, d+Au and Au+Au collisions at energies up to √sNN = 200 GeV.

DOE New RHIC Performance Milestonessp

inH

eavy

ion


The STAR Collaboration

- Most European institutions leaving for LHC- The Collaboration is growing from more efforts

from BES interests, China and India groups.

1) Frankfurt group: BES

2) GSI heavy ion group: BES, (new?) tracking

3) China HIT heavy ion group: Heavy ion, HBT

4) More students from India groups: 6 additional students, MTD

5) China groups: TOF, HFT, MTD


Charge for new decadal plans for STAR and PHENIXby Steve Vigdor, Dec. 17, 2009

http://drupal.star.bnl.gov/STAR/event/2009/12/10/star-management-meeting

due date: Oct. 1, 2010

SpinB. Surrow

Heavy IonJ. Dunlop

UpgradeF. Videbaek

Decadal PlanC. Gargliardi

Decadal Plan see Carl’s talk


Charge for new decadal plans for STAR and PHENIX

Part-I: Summary of current upgrade and scientific reach, time line

1) A brief summary of the detector upgrades already (or soon to be) in progress, the timelines for completing them, the new science capabilities each adds in combination with upgraded RHIC luminosity, and your best current estimates (informed by the current strawman 5-year run plan for RHIC) of when you will be able to acquire the data that addresses the relevant science goals. This can even be summarized in tabular form, and should be consistent with the latest RHIC Midterm Plan.

2) The compelling science goals you foresee for RHIC A+A, p+p, and d+A collisions that can only be carried out with additional upgrades (or replacements) of detector subsystems or machine capabilities (e.g., further luminosity or diamond size improvements). For each such goal, provide some explanation of why RHIC is the appropriate facility (e.g., in competition with LHC or FAIR) to pursue that science, and preferably some simulations that demonstrate the need for new detector or machine capabilities to address the compelling questions. If the pursuit of some science goals is conditional on results to be obtained over the next several years, try to outline the decision points you foresee for deciding future paths.



Part-II: Future R&D at RHIC and migration to EIC(?)

3) Prioritized, or at least time-ordered, lists of the major (above $2M total project cost) and more modest (below $2M total project cost) new detector upgrades your Collaboration foresees, together with R&D milestones that may have to be passed to demonstrate their technical feasibility. Also provide whatever information you have on the indicated timescale concerning probable costs of each upgrade. I understand these will likely be very preliminary in most cases.

4) Any plans or interest your Collaboration has in adapting your detector or detector subsystems (or detector R&D) to study electron-nucleon and electron-ion collisions with an eventual eRHIC upgrade. This is relevant only near the end of the decade addressed here, but will be important for planning purposes. (We may well be forced by financial or environmental considerations, even for a first MeRHIC stage, to consider options in which acceleration of the electron beam is carried out around the RHIC tunnel, requiring some scheme for getting an electron beamline through or around PHENIX and STAR. So it’s worth considering if there is some way you could make use of the e-p and e-A collisions if we provided them.)



Part-III: Evolution of the collaboration

5) The envisioned evolution of your Collaboration through the decade: institutions that may leave, others that might join, any plans to keep your Collaboration healthy and vibrant as RHIC becomes a “mature” facility.


One Possibility

STAR => eSTAR with a moderate upgrade program (2012 – 2020)

- Cost effective for Physics Case and Detector R&D for EIC

- Maintain the community

eSTAR

ePHEN

IX

eRHIC Design

2 SRF linac1 -> 5 GeV per pass4 (6) passes

Coherent

e-cooler

eRHIC detector

inje

ctor

RHIC: 325 GeV p or 130 GeV/u Au with DX magnets

removed


STAR Experiment

MRPC ToF BarrelALICE Technology

BBC

PMD

FPD

FMS

EMC BarrelEMC End Cap

DAQ1000

FGT

COMPLETE

Ongoing

MTD

R&DHFT

TPC

FHC

HLT

pp2pp’ pp2pp’

trigger computing


The STAR Collaboration

- Most European institutions leaving for LHC- The Collaboration is growing from more efforts

from BES interests, China and India groups1) Frankfurt group: BES

2) GSI heavy ion group: BES, (new?) tracking

3) China HIT heavy ion group: Heavy ion, HBT

4) More students from India groups: 6 additional students, MTD

5) China groups: TOF, HFT, MTD

Future:- HFT: Thermalization of light quarks- EIC: More effort in the forward rapidity needed- BES: collaboration with SPS, CBM, NICA

nu xu1/17star decadal plan meeting at uic, september 10 th, 2010 star experiment: status &...

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