Nuclear and Hadron Physics with Antiprotons

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1 Nuclear and Hadron Physics with Antiprotons FAIR Olaf N. Hartmann INFN Laboratori Nazionali di Frascati

2 Overview The Facility: FAIR, HESR The Physics Program The Detector The Collaboration Outlook

3 The Accelerator Facility Existing GSI: UNILAC SIS (18 Tm) ESR heavy ions up to uranium 2A GeV Proton Linac 100 Tm Primary proton beam: 2(4) GeV HESR Production target Accumulation and cooling

4 The HESR High Energy Storage (Synchrotron?) Ring Electron and stochastic cooling stored antiprotons Design luminosity: cm -2 s -1 ( Hz) High resolution mode: p/p 10-5 High luminosity mode: p/p to 15 GeV/c antiprotons

5 HESR Momentum Range CERN FNAL

6 General Frame Non-perturbative regime of QCD Quarks are confined Hadron mass >> Σ quark masses Self-interaction among gluons

7 PANDA Physics Program Hadron physics: Charmonium Spectroscopy Gluonic Excitations: Glueballs, Hybrids Nuclear physics: Charm in nuclear matter Double Λ Hypernuclei Open Charm, GPD, CP violation, transversity, timelike e.m. form factor of the proton,

8 Charmonium Spectroscopy Systematic study of the complete spectrum (high statistics, high precision) h c Radiative deexcitations States above the DDthreshold Crystal Ball PANDA: direct formation of all states possible

9 Glueballs Mixing with other states maybe less in charm quark mass region Clean signal: exotic quantum numbers Morningstar, Peardon, PRD 60(99) UKQCD, Bali et al., PLB 309(93)378

10 Charmed Hybrids Non-exotic hybrids: formation, production Exotic hybrids: production (J PC = 0 +-, 1 -+, 2 +- ) LQCD Juge, Kuti, Morningstar, PRL 90(2003)161601

11 Hadrons in Matter Evidence from experiments in the π light/strange quark π π + sector: modification of K + K meson properties in the medium K At PANDA this D research will be extended into the D + charm quark sector A. Hayashigaki, PLB 487 (2000) MeV 100 MeV D 50 MeV

12 D-mesons in Matter Analogy to K ± production in nuclei: enhanced production yield different D + and D - yields A. Sibirtsev, EPJ A6 (1999) 351 Strategy: study D ± production as a function of p momentum size of target nucleus

13 Mass shift of D-mesons GeV/c Mass ψ(3 3 S 1 ) ψ(1 3 D 1 ) ψ(2 3 S 1 ) χ c2 (1 3 P 2 ) χ c1 (1 3 P 1 ) χ c1 (1 3 P 0 ) DD 3,74 vacuum 3,64 1ρ 0 3,54 2ρ 0 Assumption (prejudice) : cc states have small mass shift Attractive DD mass shift increased phase space for DD decay opening of DD decay branch η c (1 1 S 0 ) ψ(1 3 S 1 ) ψ(3770), ψ(3686) : increased width decrease of e + e / µ + µ branching ratio

14 Charmonium Mass Shift η c J/ψ Χ c0,1,2 Ψ(3686) Ψ(3770) expected m/mev decay channel γγ l + l J/ψ γ l + l l + l S.H. Lee, nucl-th/

15 Absorption of J/Ψ Studying the J/ψ in p annihilation relevance for high energy heavy ion collisions (QGP signature)

16 Double Λ Hypernuclei _ p 3 GeV/c capture of of the the Ξ in in a secondary target target nucleus Kaons _Ξ trigger Ξ - capture: Ξ - Ξ - p ΛΛ + 28 MeV X Λ Λ +23 MeV possibility to study ΛΛ interaction ΛN interaction production of of hyperon- (ΛN antihyperon NN) close close to to threshold does a (uuddss) state (H-particle) exist? γ γ-spectroscopy using using Ge-detectors

17 Ω-Atoms Ω hyperon (sss) cτ = 2.46 cm, J = 3/2 quadrupole moment Q ~ 3J z2 J (J +1) not vanishing Idea: study Ω atoms Similar to double Λ hypernulei: start with ΩΩ, form Ω atom hyperfine splitting

18 Detector Requirements Multi-purpose detector: Identification of charged particles: e ±, µ ±,π ±,K ±,p,... Identification of neutral particles: γ,π 0,η, Wide momentum coverage 100 MeV/c to 8 GeV/c Angular coverage as complete as possible Capable to stand 10 7 interactions/s Resolution of secondary vertices (D ±,D 0,K S,Λ,Σ, ) Modularity (e.g. Hypernuclear Physics Setup) Efficient trigger

19 PANDA Detector Passive materials Solenoid (2 T) Beam pipe Interaction point Dipole (2 Tm) target pipe

20 PANDA Detector Target and Tracking detectors pellet target cluster jet target wire target Central tracker: straw tubes TPC Forward tracker: Drift chambers Microvertex detector

21 PANDA Detector Modified setup for the Hypernuclear Detectors for physics Particle identification Muon detectors Electromagnetic and Hadron calorimeter DIRC Time-of-flight barrel Electromagnetic calorimeter Cherenkov detector

22 The PANDA Collaboration Austria SMI Vienna Belaruz U Minski China IHEP Beijing, IMP Lanzhou Finland IoP Helsinki France IPN Orsay Germany U Bochum, Bonn, TU Dresden, U Erlangen, Frankfurt, Gießen, GSI, FZJ, U Mainz, TU München, U Münster, Tübingen Italy U/INFN Catania, Ferrara, Genova, Milano, Pavia, Piemonte Orientale, Torino +Politecnico, Trieste, LNF Poland U Cracow, Katowice, TU+SINS Warsaw Romania IFIN Bucharest Russia JINR Dubna, BINP Novosibirsk, PNPI St. Petersburg Spain IFIC Valencia Sweden U+KTH Stockholm, ISV+TSL Uppsala Switzerland U Basel United Kingdom U Edinburgh, Glasgow USA Northwestern U

23 Outlook The Technical Progress Report for PANDA has been positively evaluated by the Advisory Committees R&D for detector hardware as well as simulations are in progress Physics Workshop, Uppsala, June PANDA will be ready to accept the first beam in HESR