J. Marton, ÖPG-FAKT, Weyer, September 27, 2004 1 FAIR at GSI and the Future of Hadron Physics J....

J. Marton, ÖPG-FAKT, Weyer, September 27, 2004

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FAIR at GSI and the Future of Hadron Physics J. MartonInstitute for Medium Energy PhysicsAustrian Academy of SciencesVienna

Facility for

AntiprotonIonResearch

• Introduction• Facility Layout and Characteristics• Scientific Areas and Goals• Research with Antiprotons• Summary


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Perspectives

Enormous international interest in the opportunities of the new facility

Long Range Plan 2004:NuPECC recommends the highestpriority for a new construction project thebuilding of the international “Facility forAntiproton and Ion Research (FAIR)“ atthe GSI Laboratory in Darmstadt.


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FAIR

• Dec. 2001 Conceptual Design Report

• July 2002: project positively evaluated

by German Science Council

• Feb 2003: positive decision of BMBF (Ministry of Education & Research)


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GSI today and in the future

Existing facility:UNILAC < 15 MeV/uSIS < 1-2 GeV/uESR < 0.8 GeV/u


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FAIRFacility for Antiproton and Ion Research

Existing GSI facilityExisting GSI facilityFuture facilityFuture facility

• Cooled beams• Rapidly cycling SC magnets

Key Technical Features


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Primary Beams

Primary beams:1012/s; 1.5 GeV/u; 238U28+

Factor 100-1000 over present intensity

2-4 1013/s 30 GeV protons

1010/s 25-35 GeV/u 238U73+


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Secondary Beams

• Secondary Beams:• Broad range of radioactive

beams up to 1.5-2 GeV/u• up to factor 10000 in

intensity over present

Storage and Cooler Rings:1011 stored and cooled1 -15 GeV/c antiprotons

Radioactive beamse-A colliderpbar-A collider


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Storage Rings

Collector (CR) and Storage Rings (NESR) for Ions and Antiprotons

AIC and eA collider

Electron cooler

rel. ion velocity v/v0io

n in

tens

ity


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HESR

1011 stored antiprotons1 - 15 GeV/c

L = 2 x 1032 cm-2s-1

p/p ≥ 10-5 (high resolution mode)x/x ≥ 100m

High Energy Storage Ring


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Research Areas @ FAIR


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Research Areas @ FAIR

Structure and Dynamics of Nuclei - Radioactive BeamsNucleonic matterNuclear astrophysicsFundamental symmetries

Hadron Structure and Quark-Gluon Dynamics - AntiprotonsNon-pertubative QCDQuark-gluon degrees of freedomConfinement and chiral symmetry

Nuclear Matter and the Quark-Gluon Plasma - Relativistic HI - Beams Nuclear phase diagramCompressed nuclear/strange matterDeconfinement and chiral symmetry

Physics of Dense Plasmas and Bulk Matter - Bunch CompressionProperties of high density plasmasPhase transitions and equation of stateLaser - ion interaction with and in plasmas

Ultra High EM-Fields and Applications - Ions & Petawatt LaserQED and critical fieldsIon - laser interactionIon - matter interaction

SIS 18

Ion BeamHeating

Jupiter

Sun Surface

Magnetic Fusion

solid statedensity

Tem

pera

ture

[eV

]

Density [cm-3]

LaserHeating

PHELIX

Ideal plasmas

Strongly coupled

plasmas

Sun Core

InertialCofinement

Fusion


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Antiproton Physics

• PANDA

• AIC

• FLAIR

Our institute is cooperation partner in FAIR antiproton experiments at low, medium and high energy

LOIs with positive PAC decisions

Technical proposals in preparation

pbar energy


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antiProton-ANnihilation at DArmstadt

Strong interaction Studies with Antiprotons


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PANDA goals● Systematic study of the complete

spectrum (high statistics, high precision)

● Many states are still missing.● pp: direct population of all states.● HESR allows investigation of states

above DD threshold.● Cooled beams with p/p=10-5 allow

high precision scan of resonances.

3500 3520 MeV3510

CB

all

ev./

2 M

eV

100

ECM

CBallE835

1000

E 8

35

ev./

pb

c1

PANDA: charmonium spectroscopy


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PANDA physics

Search for glueballs and hybrids

D mesons in matter

Hypernuclei


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PANDA

Multi-purpose 4π detector system

Schematic top-view

pbar

– Nearly full solid angle for charged particles and gammas– High rate capability – Good particle identification (e, , π, K, p) – Efficient trigger on e, , K


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Internal Target System

PANDAMagnet

Development supported by I3-HadronPhysics within FP6

Cluster-Jet Target homogenous density profile also suitable for other gases goal: density 1015 at/cm2 lateral spread at intersection < 10 mm gas load on ring vacuum to be minimized

Other target opportunities:

Hydrogen Pellet Target

Nuclear targets (wire, fiber)


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Detector partsTarget Spectrometer

-Micro Vertex Detector-Tracking Detectors

Straw Tube TrackerMini Drift Chambers

-Particle IdentificationDIRCAerogel Cherenkov CounterMuon Detection

-Electromagnetic Calorimeter-Germanium Detectors (for hypernuclei)

Forward spectrometer

Dipole MagnetTracking DetectorsParticle Identification (TOF, RICH)

15 - 16.000 modules

p


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PANDA Collaboration


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Antiproton-Ion Collider

A tool for the measurement of both neutron and proton rms radii of stable and radioactive nuclei


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Procedure

• Production of neutron rich nuclei by fragmentation at medium energies

• Storing of products in a cooler ring NESR (740 MeV)• Production of antiprotons with 30 GeV protons• Cooling and storing of antiprotons• Deceleration and cooling of antiprotons • Transfer in collider ring AIC (E(pbar)= 30 MeV)• Head-on collisions ions-pbars• Detection of the reaction products• Extraction of cross sections

prop. to n/p density distribution• rms radii of n-p and their differences


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p - A

CR (Collector Ring)fast stochastic cooling(cooling time ≤ 5s)

RESRaccumulation of pbarsfinal pbar coolingdeceleration of RI beams

NESR (New Storage Ring)experiments with RIdeceleration of pbars

pbar ring AIChead on collisions with ions

Layout of Rings


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Detection by Schottky Spectroscopy

High sensitivity by analysis of revolution frequency

Isobars (A-1) with Z-1 and N-1 to be resolved


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Facility for Low Antiproton Ion Research

high-brightness high-intensity low-energy antiproton beams

Chairman of Steering Committee: E. Widmann (Univ. Tokyo)


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Goals

Precision measurementsmatter-antimatter (a)symmetryantihydrogen: CPT, gravitation

X-ray spectroscopy pbar-nucleon interactionlow energy QCD

Atomic physicsexotic atom formationatomic collisions

Applications (medicin)


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Low Energy pbars

lower (optimum) energy and substantially higher intensities best suited facility for low energy antiproton physics


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FLAIR


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FLAIR Layout


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FLAIR Community


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COSTS

Building and infrastructure: 225 Mio. € Accelerator: 265 Mio. €

Experimental stations / detectors: 185 Mio. €

Total: 675 Mio. €

SCHEDULE

0 100 200 300 400 500 600 700

Nuclear structurephysics

Antiproton physics

Nuclear matterresearch

Atomic physics

Plasma research

Materials research

Radiation biology

Accelerator physics New facilityGSI today

Users interest

FAIR: Users, Costs and Schedules


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Staged Construction of FAIR


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Summary

Features of FAIR

Increased beam intensity by factor 10000 Higher beam energies by factor 20 Production of antiproton beams Excellent beam quality by novel beam cooling Efficient parallel operation of accelerators

Finished in ~2012 Investment: ~ 675 M€

(25% from international partners) Users: ~ 2500 / y


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Post scriptum

…. In short, this facility is broadly supported since it will benefit almost all fields of nuclear science with new research opportunities.

ad FAIR inNuPECC Long Range Plan 2004Executive SummaryRecommendations and Priorities

J. Marton, ÖPG-FAKT, Weyer, September 27, 2004 1 FAIR at GSI and the Future of Hadron Physics J....

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