Download - Prospects for Hadron Physics in Europe
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
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