Hadron Physics with Antiprotons – the PANDA Program Olaf N. Hartmann GSI Darmstadt, Germany INPC 2004 · Göteborg, Sweden.

Hadron Physics with Antiprotons –the PANDA Program

Olaf N. Hartmann

GSI Darmstadt, Germany

INPC 2004 · Göteborg, Sweden

Antiproton Annihilation at Darmstadt

• Charmonium• Gluonic excitations and exotics• Charmed hadrons in matter• Hypernuclei• Electromagnetic processes• Open charm physics

→ multipurpose detector PANDA

Studying the Strong Interaction

Non-perturbative regime of QCD

Quarks are confined Hadron mass >>

Σ quark masses Self-interaction among

gluons

Integration of PANDA in FAIR

FAIR (Facility for Antiproton and Ion Research)

• proton Linac• 100/300 Tm Synchrotron

HESR (High Energy Storage Ring)

• 50 Tm storage ring 1 to 15 GeV/c antiprotons• high luminosity mode: L= 2·1032 cm-2s-1

• high resolution mode: p/p ~ 10-5

• electron cooling/stochastic cooling• internal target

HESR

SuperFRS

NESR

CR

productiontarget

Charmonium Spectroscopy

advantage in :direct formation of allcharmonium states

Crystall Ball

ppOn PANDAs menu:

• Systematic study of the complete spectrum (high statistics, high precision)

• hc

• Radiative deexcitations

• States above the DDbar-threshold

Glueballs

Morningstar, Peardon, PRD 60(99)034509UKQCD, Bali et al., PLB 309(93)378

Mixing with other states maybe less in charm quark mass region

Clean signal: exotic quantum numbers

(Charmed) Hybrids

Mixed state of a quark-antiquark pair and a gluon

Non-exotic hybrids:formation, production

Exotic hybrids:production(JPC = 0+-, 1-+, 2+-)

Exotic charmonia: 3-5 GeV/c2

Charmed Hadrons in Medium

Evidences for modificationsin medium (charged kaons, pions)

D-meson: heavy quark, light antiquark50-160 MeV/c2 splitting

Large charm quark mass↔ little sensitivity to quark condensate→ gluon condensatem = 140 MeV/c2 for Ψ(3770)

Hypernuclei

PANDA detector

Targetspectrometer

2 T (solenoid)

Forwardspectrometer

2 Tm (dipole)

Microvertex-detector(silicon pixel)

Tracking detector• straw tubes• TPC

Particle IDDIRC

Particle IDRICH

ElectromagneticCalorimeter

Muon detectors

Tracking detectorsMini drift chambers

Forward Spectrometer

• Drift chambers

• Electromagnetic Calorimeter

• Hadron Calorimeter

• Muon detectors

Internal target

• Pellets

• Cluster jet

• Wire

Summary

PANDA Physics Program: Charmonium, Glueballs, Hybrids, Charmed Hadrons in Matter, HypernucleiElectromagnetic Processes,Open Charm Physics

PANDA Detector: high resolution for charged and neutral particles in nearly 4π

PANDA Collaboration

Austria - IMEP Wien China

IHEP Beijing, IMP Landzou Germany

U Bochum, U Bonn, TU Dresden, U Erlangen, U Frankfurt/M., U Gießen, GSI, FZJ-IKP, U Mainz, TU München, U Münster, U Tübingen

ItalyU+INFN Brescia, U Catania, INFN Ferrara, LNF, U+INFN Genova, U Milano, U Pavia, U Piemonte Orientale, U+INFN+PT Torino, U+INFN Trieste

Netherlands – KVI Poland

Silesian U, U Cracow, SINS Warsaw

RussiaJINR Dubna, BINP Novosibirsk, PNPI Gatchina, IHEP Protvino

SwedenU Stockholm, U+TSL Uppsala

Switzerland – U Basel United Kingdom

U Edinburgh, U Glasgow USA – Northwestern U