# Presentation: 566166

## Hadron Physics  @		        

- Klaus Peters
*KPIII/HPI, GSI Darmstadt**IKF, JWGU Frankfurt*
- Project X Workshop “Physics”
- Nov 16, 2007

## Nov. 7, FAIR Start-Event – last week 

- Offical Start Signed
- By 12 Partners
- Volume in Phase A
- 940 M€
- 16 Countries

- Nov. 7, FAIR Start-Event – last week

- Klaus Peters - Hadronphysics @ FAIR

## Where is Darmstadt ?

- GSI

- Klaus Peters - Hadronphysics @ FAIR

##          @ GSI

- FAIR
- CDR 			2001
- FTBR 			2006
- Construction Start 	2007
- Ground Breaking 	2008
- First Experiments 	2012
- Fully Completed 	2015
- Budget 			€ 1.1 B

- Existing GSI

- new FAIR buildings

- Klaus Peters - Hadronphysics @ FAIR

## Structure of Matter

- galaxy
- 1021 m

- matter
- 10-1 m

- crystal
- 10-9 m

- atom
- 10-10 m

- atomic
- nucleus
- 10-14 m

- <10-18 m electron quark

- nucleon
- 10-15 m

- DNA
- 10-8 m

**Research with Beams ****of Hadrons and Ions**

- quark-gluon plasma
- excited vacuum

- HI Beams  12 TW/g

- RIBs  1.5 – 2 GeV/u

- Antiprotons 0-15 GeV

- Relativ. HI  35 GeV/u

- Ion-Matter Interactions
- Dense Plasmas

- Ultra High EM Fields
- Nuclei at the Extremes

- Quark Gluon Structure
- of Hadrons

- Quark Matter

- Klaus Peters - Hadronphysics @ FAIR

## Mission Statement	

- Strong and weak interaction critically determine the structure of matter at the microscopic level
- Goal: Comprehensive and quantitative understanding
- Many-body aspects play an important role at all levels of the hierarchical structure of matter
- Goal: Investigate many-body effects at all scales

- Klaus Peters - Hadronphysics @ FAIR

## Five Areas of Research at FAIR 

**100 m**

- Hadron Physics
- with antiprotons

- Nuclear Structure & Astrophysics
- with radioactive beams

- Plasma Physics with compressed ion beams & high-intensity petawatt-laser

- Nuclear Matter Physics with
- 35-45 GeV/u HI beams

- High EM Field (HI)
- Fundamental Studies (HI & p)
- Applications (HI)

- Five Areas of Research at FAIR

- Klaus Peters - Hadronphysics @ FAIR

## Accelerator Chain

- SIS 100

- SIS 12/18

- SIS 300

**SIS 300**

- High Energy operation SIS300

- Highly Parallel Operation

- SIS 300

- Klaus Peters - Hadronphysics @ FAIR

## Phase diagram of strongly interacting matter

- SPS, RHIC, LHC:
- high temperature, low baryon density
- SIS300:
- moderate temperature, high baryon density

- Klaus Peters - Hadronphysics @ FAIR

## CBM Experiment - Objectives

- In-medium modifications of hadrons
- onset of chiral symmetry restoration at high ρB
- measure: ρ, ω, ф    e+e-  and open charm (D mesons)
- Strangeness in matter (strange matter?)
- enhanced strangeness production ?
- measure: K, Λ, Σ, Ξ, Ω
- Indications for deconfinement at high ρB
- anomalous charmonium suppression ?
- measure: J/ψ, D
- Critical point
- event-by-event fluctuations
- Color superconductivity
- precursor effects ?

- Klaus Peters - Hadronphysics @ FAIR

## CBM @ FAIR

- Radiation hard Silicon Tracking System
- (pixel/strip) in a magnetic dipole field
- Electron detectors: RICH & TRD & ECAL:
- pion suppression better 104
- Hadron identification:  TOF-RPC
- Measurement of photons, π, η, and muons:
- electromagnetic calorimeter (ECAL)
- High speed data acquisition and trigger system

- Klaus Peters - Hadronphysics @ FAIR

## QCD phases @

- CBM

- CBM (Phase B)
- EOI 			2000
- LOI 			2004
- TPR		 	2005
- TDRs 		2009 - 	2010
- Construction	2009 -	20151st Physics		2016
- Cost			€ 60 M

- Klaus Peters - Hadronphysics @ FAIR

##  The Fluxtube in a Meson

-  The Fluxtube in a Meson

- 0.7 fm

- 1.0 fm

- 1.35 fm

**strong interaction strength**

- Lattice QCD calculationsG. Bali, hep-lat/9409005

- [qq] bound state

- Rotation

- Vibration

- Klaus Peters - Hadronphysics @ FAIR

## The Potential – A Guide

- G. Bali *et al.,*    hep-lat/0003012

- G. Bali, hep-ph/0412158

- Klaus Peters - Hadronphysics @ FAIR

## X(3872) and Confirmation

*hep-ex/0406022*

*9.4**σ*

*11.6 **σ*

**BABAR**

*Phys. Rev. Lett. 91(2003)262001**152 Mill. BB*

- Klaus Peters - Hadronphysics @ FAIR

## Why Antiprotons for Heavy Flavour Spectroscopy

- high resolution spectroscopy with p-beams in formation experiments:
- ΔE ≈ ΔEbeam

-  e+e- interactions:
- Only 1-- states are formed
- Other states only bysecondary decays  moderate mass resolution

- pp reactions:
- All states directly formed
- very good mass resolution

- CBall, Edwards et al. PRL 48 (1982) 70
- E835, Ambrogiani et al., PRD 62 (2000) 052002

- Klaus Peters - Hadronphysics @ FAIR

## Why Antiprotons for Heavy Flavour Spectroscopy

- high resolution spectroscopy with p-beams in formation experiments:
- ΔE ≈ ΔEbeam  Precision Frontier
- high yield of gluonic and radial excitations in pp
- glueballs, charmed hybrids  Discovery Potential
- event tagging by pair wise associated production,
- (particle, anti-particle) e.g. ppDD
- large √s at low momentum transfer
- important for in-medium "implantation" of hadrons:
- study of in-medium effects of charmed states

- Klaus Peters - Hadronphysics @ FAIR

## Electromagnetic Reactions

**e-**

**p**

**e****-**

**p**

**γ**

**p**

**γ**

**p**

**p**

**p**

**e****+**

**e****-**

**p**

**p**

**γ**

**γ**

- Klaus Peters - Hadronphysics @ FAIR

## Crossed-Channel Compton Scattering

- Cross section σ ≈ 2.5pb @ s ≈10 GeV2
- L = 2·1032 cm-2 s-1→ 103 Events/Month

- Electromagnetic Formfactor of the Proton (time-like)

- Klaus Peters - Hadronphysics @ FAIR

## Accessible Charmed Hadrons at PANDA

- Accessible Charmed Hadrons at PANDA

- Other exotics with identical decay channels  same region

- conventional
- charmonium

- exotic
- charmonium

- Klaus Peters - Hadronphysics @ FAIR

## HESR – Storage Ring for Antiprotons

**Parameters of HESR**
-  Injection of p at 3.7 GeV
-  Slow synchrotron (1.5-14.5 GeV/c)
-  Storage ring for internal target operation
-  Luminosity up to L~ 2x1032 cm-2s-1
-  Beam cooling (stochastic & electron)

- ECM

**Resonance scan**
-  Energy resolution ~50 keV
-  Tune ECM to probe resonance
-  Get precise mass and width

- Klaus Peters - Hadronphysics @ FAIR

## PANDA

- High luminosity mode
- Luminosity 	= 2 x 1032 cm-2s-1
- δp/p ~ 10-4 ** **(stochastic cooling)
- High resolution mode
- δp/p ~ few 10-5**  **(+electron cooling)
- Luminosity 	> 1031 cm-2s-1
- Gas-Jet/Pellet/Wire Target

- p

- p

- Klaus Peters - Hadronphysics @ FAIR

## p @

- p @

- HESR

- NESR

- PANDA

- FLAIR

- PANDA (Phase A)
- EOI 			1999
- LOI 			2004
- TPR		 	2005
- TDRs 		2009 - 	2010
- Construction	2009 -	20131st Physics		2014
- Cost			€ 57 M

- Klaus Peters - Hadronphysics @ FAIR

## First “cold” Anti-Hydrogen 2002 @ AD

- ATHENA  Nature 419 (2002) 456

- ATRAP

- Nested Penning traps
- catch energy: some keV

*Ultimate Resolution: neutral atom traps and laser cooling to **milli-Kelvin temperatures - Long Term Project - FAIR*

- Klaus Peters - Hadronphysics @ FAIR

## FLAIR Physics Overview (Antiprotons)

- Spectroscopy as Test for CPT and QED
- Antiprotonic atoms (p-He, p-p), anti-hydrogen
- Gravitation of anti-matter
- Trapped and laser-cooled anti-hydrogen
- Atomic Collisions
- Ionization, energy loss, anti-matter-matter
- Antiprotons as hadronic Probes
- X-rays of light p-Atoms: Low energy QCD
- X-rays of neutron rich nuclei: nuclear structure (halo)
- Antineutron interaction
- Strangeness –2  production
- Medical application: Tumor therapy

- High-brilliant
- Low energy beams
- USR
- DC beam,
- rare ions
- Higher
- energies

- Klaus Peters - Hadronphysics @ FAIR

## FLAIR – Facility for Low-energy Antiproton and Ion Research

- NESR
- p & Ions30 – 400 MeV
- LSR:
- Standard Ring< 300 keV
- USR
- Electrostatic
- < 20 keV
- HITRAP
- p & Ionsstopped & extracted @ 5 keV

- CRYRING
- Challenge! new
- MPI-K HD
- In construction for
- ESR @ GSI
- with Hall A
- of CDR

- Klaus Peters - Hadronphysics @ FAIR

## Thank You

- Klaus Peters - Hadronphysics @ FAIR