Workshop Introduction and Physics at COSY-ANKE

1. Workshop Introduction andPhysics at COSY-ANKE Workshop on Existing and Future Projects between PNPI and FZJ June 2012 | Hans Ströher (Forschungszentrum Jülich, Germany)

2. Preface – Workshop • 3rd Workshop (after 2001 and 2004); cooperationsbetween PNPI and FZJ: • Ongoing: • Hadronphysicsat COSY (ANKE) • Polarizedantiprotons (PAX) • Technical developments: ABS, SC, LSP • Polarizedfusion (togetherwith ITMO, St. Petersburg; …) • Polarizedmolecules (togetherwith Univ. ofCologne; …) • Future: • Precision physicswith COSY (TRIC, EDM, … FAIR) • Other fields: (i) neutronphysics • (ii) (nuclear) medicine • (iii) energyresearch • (iv) environmental research … PNPI and FZJ – strong partners  foster mutual cooperations!

3. Preface – V.P. Koptev V. Koptevsuggestedandplannedthismeeting: Delay of meeting to 2012

4. Preface – V.P. Koptev • Dear colleagues, • Most of you probably know already that our colleague and friend Vladimir P. Koptev • died yesterday (January 12) on his way home from the Institute. This news comes • as a terrible surprise and shock to all of us. • We have seen Vladimir coming to Juelich for many years, first to build ANKE together • with Otto Schult (and others) and later to use it in experiments. He was highly respected • within the collaboration because of his deep insight into both the detector and the science • as well as for his wholehearted commitment to the projects. He was appreciated by all • of us because of his wry sense of humour and his friendly character. • We realized that his health had degraded in more recent times, but we all had hopes • that he would still be able to come back to Juelich once again in the Spring. We also • had plans for a common workshop in Gatchina, which he now will miss. Our thoughts • are with his family and his colleagues in Gatchina. We will certainly miss him a lot (…) • Hans Ströher and Andro Kacharava (on behalf of the ANKE collaboration) ANKE News #202, January 13, 2012

5. Preface – V.P. Koptev V. Koptevstartedtovisit Jülich in 1990: O. Schult first met V. Koptev in Gatchina in 1989; he invited him to Jülich

6. Preface – V.P. Koptev V. Koptev (andhisgroup) joinedthe ANKE-collaboration 6th ANKE Workshop on StrangenessProduction on NucleonsandNuclei Gatchina, 2004 Mostly, but not a complete one-way exchange

7. Preface – V.P. Koptev V. Koptev (andhisgroup) joinedthe ANKE-collaboration 6th ANKE Workshop on StrangenessProduction on NucleonsandNuclei Gatchina, 2004 A scientific success story for the next 21 years!

8. Physics at COSY-ANKEIn remembrance of Vladimir Petrovich Koptev Workshop on Existing and Future Projects between PNPI and FZJ June 2012 | Hans Ströher (Forschungszentrum Jülich, Germany)

9. Introduction – Physics Hadronphysics was then (nolonger) atitsinfancy: HadronPhysicsisthepartof structure-of-matter physics thatdealswith stronglyinteractingparticles atthelevelofquarksandgluons Hadrons (e.g., nucleon) are complex objects  detailed studies required !

10. Introduction – Physics • Hadrons: complexphenomenafrom simple rules – howandwhy? • Strong QCD, i.e. non-perturbativeregimeof strong interaction • Constituentquarksarestronglydressedbygluons • Importanceofdynamicchiralsymmetrybreaking(DcSB) • ( massofthenucleon) The challenge of QCD – How does Nature make hadrons ?

11. Introduction – Physics An empiricalscience – experimentsrule ! ( experiment ) Scientific method – deeply rooted in V. Koptev´s ansatz for experiments

12. Introduction – New Expt´lFacilities E.g., COSY, the COoler SYnchrotron at Forschungszentrum Jülich

13. Introduction – COSY Characteristics of COSY • (Polarized) proton-, • deuteron-beams with • momenta < 3.7 GeV/c • Phase space cooling • (electron-, stochastic-) • Internal and external • experiments COSY is a cooler synchrotron and a storage ring

14. Introduction – Experiments at COSY • Experimental set-ups PAX ANKE WASA COSY-11 EDDA Internal experiments inside the COSY ring (+ TOF(external))

15. Introduction – Physics at COSY • Experimental program • Nucleon-nucleon interactions • Deuteron breakup • Nucleon resonances • Meson production • Strangeness production (nucleons, nuclei) • Meson-nucleon/nucleus interaction • Symmetries and symmetry breaking • Polarization build-up • (…) COSY is the hadron physics (spin) machine using hadronic probes

16. Introduction – Future Plans • SearchforElectric Dipole Moments (EDM) at Storage Rings: JEDI Jülich ElectricDipole Moment Investigations 1st step: precursor exp´t, … 2nd step: injector for dedicated EDM-SR

17. ANKE – History • Early 90´s: a 2ndgenerationinternaltargetexperimentat COSY 0° Facility at TP2 in COSY

18. ANKE – History • Early 90´s: a 2ndgenerationinternaltargetexperimentat COSY Facility moves to other side of COSY ring

19. ANKE – History • Fromplanstorealization: ANKE, the Apparatus for Nucleon and Kaon Ejectiles

20. ANKE – The 0° Spectrometer Schematic drawing Technical description of ANKE

21. ANKE – The 0° Spectrometer Range telescope K+decay t = 12.4 ns One important feature of ANKE: K+ identification („Koptev-method“)

22. ANKE – Physics Program Part of an earlyletter(beginningof 90´s) of V. Koptevto O. Schult: K+ production in pA-reactions

23. ANKE – Physics Program First ANKE proposal: COSY PAC # 11 (II/1995) Proposal # 18: K+-Meson Spectroscopy with a 0°-Facility at TP2 in COSY COSY PAC # 15 (II/1997) Proposal # 18.1: ANKE: Study of Subthreshold K+ Production – First Measurements COSY PAC # 17 (II/1998) Proposal # 18.2: Measurement of Momentum Spectra of K+-Mesons from pC-Reactions at Tp = 1.0 GeV COSY PAC # 19 (II/1999) Proposal # 18.3: Subthreshold K+ Production-Measurements with Heavy Nuclei (Spokespersons: K. Sistemich, V. Koptev) K+ production in pA-reactions

24. ANKE – Targets (I) Solid state (stripfoil) targets: Used for: inclusive K+ production on nuclear targets

25. ANKE – Results (I) Koptev´s original motivation  ANKE´s first physics paper (2001)

26. ANKE – Results (I) Analysis of all available pA  K+X data

27. ANKE – Results (II) Repulsive in-medium (K+A)-potential (~ 20 MeV) Importance of final-state interaction (Koptev´s ratio-method)

28. ANKE – Results (III) (K+d) correlations: two-step- and clustermechanism Further observations from proton-nucleus reactions

29. ANKE – Targets (II) Unpolarized hydrogen anddeuteriumtargets: Used, e.g., for: K+ production on protons and neutrons

30. ANKE – Results (IV) Y0* (1480) Line shapeofL(1405) via (S0p0)-decay Koptev-ideas for excited hyperons

31. ANKE – Results (V) Use of (K+p+)-pairs: Koptev´s method for pp  K+S+n

32. ANKE – Results (VI) Charged kaon-pair production (in particular f) in pp- and pn collisions

33. ANKE – Results (VII) Coupled channels (cusp) A closer look at charged kaon-pairs

34. ANKE – Results (VIII) Scalar resonances (K+K0)-pairs

35. ANKE – Results (IX) Smallest crosssection! Noq+(1530) indication ! Further investigations: isospin symmetry; pentaquark

36. ANKE – Results (X) In-medium f-production („transparencyratio“) Back to nuclear targets

37. ANKE – Results (XI) Unfinished: A clearsignal ofS-(1197) isseen ! pn  K+ p S- (via pd psp K+ p S- )

38. ANKE – Results (XII) Not mentioned: Examples of non-strangeness experiments

39. ANKE – Targets (III) Polarized hydrogen anddeuteriumtargets: Operation principle Storage cell Current and future focus of ANKE program

40. V.P. Koptev

41. V.P. Koptev • As of today (July 2012), ANKE has • published 72 scientific and 12 technical paper in refereed journals • V.P. Koptev • is co-author of 40 of these; • had 5 diploma-,4 PhD students and 5 post-docs from Gatchina • affiliated with ANKE, and he supervised a lot more in Jülich; • has – to a large extend – shaped and led the ANKE (strangeness) • physics program;

42. V.P. Koptev (15.11.1939 – 12.1.2012) • He was not only an eminent scientist, but also a strong character • and – to many of us – a close friend ! We miss him and we will never forget him – his legacy lives on !

44. Preface – Workshop • Previousworkshops in Gatchina: • June 21/22, 2001 2nd ANKE Workshop on • StrangenessProduction in pp andandpA • Interactions at ANKE • July 8/9, 2004 6th ANKE Workshop on • StrangenessProduction on Nucleonsand • Nuclei • 2009 Visitof a FZJ delegation (S. Schmidt et al.) • to PNPI - … A tradition