Günther Rosner EINN05, Milos, 24/9/05 1

Prospects for Hadron Physics in Europe Experimental

frontiers:

High precision High luminosity Polarisation

Theoreticalsymbiosis:

Effective field theories Lattice QCD Perturbative QCD

Günther Rosner EINN05, Milos, 24/9/05 2

Topics Mechanism of colour confinement Broken symmetries Hadron masses Nucleon structure

(Transition) form factors Polarisabilities Spin structure Generalised parton distributions

Modifications of hadrons in external colour fields Exotic hadrons

multiquark states hybrids & glueballs

Günther Rosner EINN05, Milos, 24/9/05 3

TSL: Celsius1.3 GeV p

Cooler Ring

MAX-lab0.25 GeV

LNF: DANEe+, e- Collider

16 MeV KL = 1032

ESRF: GRAAL106/s 1.5 GeV

CERN:COMPASS μ+, μ-,

hadrons200 GeV, L = 1032

ALICE

FAIR (GSI): PANDA

15 GeV anti – pL = 1032

Cooler RingPAXCBM

DESY:HERMES

27.6 GeV e+, e-

L = 1032

(H1, ZEUS)

FZ Jülich: COSY2.5 GeV p

Cooler Ring

MAMI1.5 GeV e, L = 1038

108/s

ELSA3.5 GeV e, L = 1034

107/s

EuropeanLaboratories

Günther Rosner EINN05, Milos, 24/9/05 4

Global hadron properties

Nucleon and meson form factors,transition form factors

(Spin) polarisabilities Properties of excited nucleons

“Missing” resonances Magnetic moments

Sum rules (GDH on the neutron) Meson production and decay

MAX-lab, MAMI, ELSA, COSY, COMPASS

Günther Rosner EINN05, Milos, 24/9/05 5

MAMI upgrade

2006

2004/6

Glasgow Tagger upgrade

2006

2006

1.5 GeV electrons

+ TAP

S

Günther Rosner EINN05, Milos, 24/9/05 6

WASA @ COSYPrecision measurements of

broken symmetries

Isospin: ’

CP: KL +-e+e-

+-e+e-

C: 0e+e-

Günther Rosner EINN05, Milos, 24/9/05 7

The nucleon spin puzzle

COMPASSRHIC

HERMES, COMPASSFNAL, PAX

HERMESCOMPASS

PANDAJLab

(upgrade)

Gluon polarisationpositive (HERMES)negative (SMC)

Gluon orbitalangular momentum(accessible through GPDs, difficult)

Quark orbitalangular momentum(accessible through GPDs)

Transversity

0.25

Günther Rosner EINN05, Milos, 24/9/05 8

Generalised parton distributions

Günther Rosner EINN05, Milos, 24/9/05 9

HERMES

Recoil Detector, 2006

27.6 GeV e+/e-

DVCS beam-helicity & beam-charge asymmetries

Extraction of H(x=,) GPD (model dependent)

Günther Rosner EINN05, Milos, 24/9/05 10

0AVMD||

q

ΔqADIS

|| q

ΔqAQCDC

|| G

ΔGAPGF

||

Gluon polarization

Photoproduction ofhigh-pT hadron pairs

Contributing diagrams:

Corresponding asymmetries:

Günther Rosner EINN05, Milos, 24/9/05 11

Beam: 160 GeV µ+

Polarizedtarget

SM1RICH

ECal1 & Hcal1

Muon filter 1

SM2

MWPCs

Micromegas &Drift chambers

ECal2 & Hcal2

Muon filter 2

GEM & MWPCs

SciFi

GEM & MWPCs

GEM & Straws

SiliconSciFi Scintillating

fibers

~50m

COMPASS

Recoil Detector > 2010

Günther Rosner EINN05, Milos, 24/9/05 12

L = 2 10⋅ 32 cm-2s-1

p(anti-p) = 3 - 15 GeV/c δp/p ~ 10-5 (electron cooling)

tracking of charged particles measurement and identification of γ, e±, μ±, π±, K±, p, anti-p high rate capability fast trigger scheme

Facility for Antiproton and Ion Research

> 2010

Günther Rosner EINN05, Milos, 24/9/05 13

Physics programme @ PANDA

Charmonium spectroscopy(confinement)

glueballs (ggg)hybrids (ccg)

inverted deeply virtualCompton scattering

strange and charmed baryonsin the nuclear colour field

hidden and open charmin nuclei

CP-violation(D & - sector)

Günther Rosner EINN05, Milos, 24/9/05 14

Charmonium spectroscopy –a testing ground for confinement

Direct formation of charmonium in pbarp

Experimental tasks find c‘ (21S0) state confirm hc(11P1) state measure transition rates identify states above DbarD

threshold Refine confinement potential

(spin dependence)? Challenge for lattice QCD

Günther Rosner EINN05, Milos, 24/9/05 15

Search for heavy glueballs Light glueballs:

candidate f0(1500), 0++; =110MeV no flavour blind decay mix with neighbouring scalar

mesons Heavy glueballs

flavour blind decay charmed final states!

only a few charmed mesons around 3-4 MeV/c2 (less mixing!)

Exotic heavy glueballs (no mixing) m(2+-) = 4140(50)(200) MeV m(0+-) = 4740(70)(230) MeV

Morningstar & Peardon, PRD60(1999)34509Morningstar & Peardon, PRD56(1997)4043

Günther Rosner EINN05, Milos, 24/9/05 16

PAX @ FAIR

in Drell-Yan processes

Antiproton Polarizer Ring (p 300 MeV/c)

Cooler Synchrotron Ring (p < 3.5 GeV/c)

Phase 1, fixed target operation:

Polarised antiprotons(p < 3.5 GeV/c) on polarised protons

Phase 2, collider mode:

Polarised antiprotons(p 15 GeV/c) on polarised protons (p 3.5 GeV/c)

s ≤ 200 GeV2, x > 0.05, Q2 = 4, …, 100 GeV2

> 2015

2 2 21 1 1 2

2 2 21 2

( , ) ( , )ˆ

( , ) ( , )

q qq

qTT TT

qq

e h x M h x Md d

A ae q x M q x Md d

Transversity

Günther Rosner EINN05, Milos, 24/9/05 17

DANE upgrade Proposed measurements in

time-like nucleon form factors polarization of outgoing proton

relative phase between electric and magnetic FFs

proton angular distribution 2-photon contributions

strange baryon FFs

Draft LoI on nucleon FFs(21 institutions, 8 countries, ~ 70 scientists)

Beam on target: 2009-2011

Luminosity L ~ 1033 cm-2 s-1

(at production) Energy Emax = 1.2 GeV

(per beam) L = 1032cm-2 s-1

Günther Rosner EINN05, Milos, 24/9/05 18

Europe FP6 HadronPhysics I3, 2004-2007 (Coordinator: LNF)

3 communities: lepton scattering, hadron beams, high energy heavy ion reactions

11 Research Infrastructures

140 institutions (mostly universities) participating in Joint Research Activities & Networks

2000 physicists

FP7, 2007-2011 New proposal:

possible new RIs: ELSA, FAIR

new networks or joint research activities - start planning now

deadline for submission at the beginning of 2007!

Günther Rosner EINN05, Milos, 24/9/05 19

Perspectives > 2005: Facts

New or upgraded accelerator facilities MAX-lab, MAMI C, LHC

New or upgraded experiments HERMES, COMPASS, WASA @ COSY,

ALICE

> 2010: Expectations New or upgraded accelerator facilities

FAIR, DAFNE 2

New or upgraded experiments PANDA @ FAIR, CBM @ FAIR, COMPASS 2,

KLOE 2

> 2015: Plans New accelerator facility

Proton-antiproton collider at FAIR

New experiment PAX

Excellent prospects

for Hadron Physics in Europe

in the next 10 to 15 years

+a large number of

theory groups