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Perspectives of Antiproton and Antikaon Physics

Perspectives of Antiproton and Antikaon Physics. pbar. Paul Kienle Stefan Meyer Institut/ÖAW Wien and TU München. Proc. LEAP 05 , AIP publication 2005. Some Selected Topics. Antiprotons for Charm Physics Kaonic Nuclear Clusters – Production with Antiproton Annihilation

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Perspectives of Antiproton and Antikaon Physics

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  1. Perspectives of Antiproton and Antikaon Physics pbar Paul Kienle Stefan Meyer Institut/ÖAW Wien and TU München Proc. LEAP 05 , AIP publication 2005

  2. Some Selected Topics • Antiprotons for Charm Physics • Kaonic Nuclear Clusters – Production with Antiproton Annihilation • Mesons and Antiprotons in Nuclear Media • Anti Deuteron Beams for Charm in Nuclei? • Can we breed Anti Helium? • Fundamental Symmetries and Antihydrogen Case Studies: Y(4260)X(3872)Z(3930)X(3940)Y(3940)...

  3. Antiprotons for Charm Physics

  4. Spectroscopy of Charmonium States • Measurement of the total width and all branching widths of the charmonium states • Determination of the transition probabilities • Deduction of the wave functions of the states • Access to non-perturbative and thus confinement effects • Needs advanced QFT treatment (Weise et al.) Such a program was proposed by Bertold Stech ~ for the bottomonium system to search for non-perturbative effects. It looks even more promising for charmonium. Who does it ???

  5. HESR b • Minimize circumference • 2. Electron cooler is essentia

  6. Structures to be Discovered

  7. Case Study: Y(4260)

  8. Strategies

  9. PANDA @ FAIR vs. e+e-

  10. X(3872) an Other Case?

  11. X(3872) a Molecule !?

  12. Z(3930) Case

  13. 2 3P0 Charmonium

  14. Kaonic Nuclear ClustersProduction with pbar Annihilation

  15. Strangeness and Charm in Nuclei • Discovery of strange tribaryon: ppnK-, pnnK- with binding energies of about 200 MeV and Γ< 20 MeV • Work in progress to search for predicted high density of these kaonic nuclear clusters with <ρ>~ 3ρ(0) • Production of kaonic nuclear clusters by antiproton absorption, including transfer of 2 antikaons to produce high density matter  kaon condensation ? New form of fermionic matter ??? • The creation of charmed bound nuclear matter {D+n} is a real challenge. Anti-deuteron annihilation ??? Subthreshold antiproton annihilation ???

  16. Double-K- Single-K- Dote et al. 2002 3He K-ppn (0)=0.14 r(0)~1.5 B = 20 MeV B ~118 MeV K-K-ppn r(0)~3.0 B ~221 MeV

  17. Summary of the Search for Deeply Bound Kaonic States

  18. Exclusive Experiments-Formation and Decay

  19. K-(3He,n) ppK- @ JPARC

  20. K- Potential and ppnK- Bound State Experimental result 4He(stopped K-, n) ppnK- BK ~ 173 MeV, GK ~ 25 MeV Predicted　(Akaishi 2002) BKth ~127 MeV , GK ~ 30 MeV • Bound nuclear state • Small width • High density ~3n

  21. Fast Pion Triggered Neutron MomentumSpectrawith Various Conditions Preliminary 10MeVee threshold L-arm 10MeVee threshold only 10MeVee threshold with software veto 10MeVee threshold L-arm with software veto

  22. Ni-Ni Collisions @ 1.9A GeV (FOPI)Λ-d Correlation from ppn K- (?) N. Herrmann, Proc. EXA 05, Vienna 2005 M > M(KEK)  > (KEK) Origin:Collision effects?

  23. Ni (2003) – Al (2005)- Λp Correlation (ppK-)? A Comparison Ni+Ni alignment of reaction plane alignment of L direction Al+Al alignment of reaction plane alignment of L direction Minv (L+p) (GeV) Peak position not stable! Reflection of other resonances? Work in progress …

  24. Λp Invariant Mass Spectrum from 3.5 GeV pC collisions

  25. p Correlations in 3.5 GeV pC Collissions

  26. Antikaons in Nuclei by Antiproton Annihilation Production of ppK- cluster by the annihilation of the n in 3He and creation of a K- K0 pair Missing mass spectroscopy of K0+ + - Invariant mass of ppK- Λ + p decay Exclusive formation and decay measurement in a 4-detector allowing K0 and Λ reconstruction

  27. Double Antikaon Production in Nuclei by Antiproton Annihilation • The process: • The cross section: • The kinematics • Double kaon production in nuclei:  With the binding energy exceeding ~ 225 MeV, double kaonic nuclei can be produced even by stopped antiprotons.

  28. Kaon Energy Correlation and Decay Density Distribution for BKK=0.4GeV

  29. Maximum Energy and Momentum of K+ as Function of the Binding Energy BKK

  30. Strangeness Exchange Reaction

  31. Mesons and Antiprotons in Nuclear Media

  32. Mesons in Nuclear Media A.Sibirtsev et al. Eur .Phys.J A6 (1999) 351 Hayashigaki PLB 487 (2000) 96 Morath, lee Weise

  33. Subthreshold Production of D Mesons

  34. Antiprotons Bound in Nuclei I.N.Mishustin, L.M.Saturov, Th.Bürvenich, H.Stöcker, W.Greiner, Phys.Rev, C 71, 035201 (2005) and references shown there. Exact G-Parity Symmetry predicts very deep potential: -V-S ~ -650 MeV However G-Parity is violated on the mean field level Calculations using „weak G-parity, and rearrangement of nuclear structure by the strong attraction of a real antiproton B ~ 1 GeV !, ~ 9-23 MeV, P~ 10-5 – 10-6HESR:10-100 s-1

  35. Knock-out Reaction forpbar-Nucleus Boundstates Search Quasi-free scatt. Aslanides et al, Nucl. Phys. A470,445 (1987) New experiment at a pbarstorage ring with internal target ?

  36. Anti Lambda in Nuclei

  37. Antideuterons

  38. Antideuteron Breeder Scheme FAIR LOI by Kilian et al.

  39. Production of Antideuterons in Antiproton Rings Proposal 1982 AIC @ GSI

  40. Can we Breed Anti 3He and More ? In principle „Yes“ using the continuation of the breeding process using the anti protons colliding with antideuterons

  41. Fundamental Symmetries and Antihydrogen

  42. The Holy Grail of Symmetry Tests Y.Yamaguchi; Prog. Th. Phys. 111 (2004) 545, „Riemannian QFT“ breaks Lorentz invariance, but not CPT Lorentz invariance tests are asked for!

  43. Antihydrogen 1s-2s (c2-c1) Transition

  44. Hyperfine Structure Test

  45. Trapped Antihydrogen Population of n-States Temperature Measurement indicate T ~ 2400 K Needed for trapping T ~ 0.5 K ρ mostly above 0.1 µm n > 15

  46. Hyperfine Structure of Antihydrogen Accuracy of hydrogen hyperfine structure: 2mHz Improvement:Sextupole race track storage ring,like NESTOR (W.Paul and U.Trinks)

  47. Sextupole Toroidal Racetrack Storage Ring for Hyperfine Structure Studies of Antihydrogen Equilibrium condition of antihydrogen with magnetic moment μ on a circular orbit with radius ρs in a toroidal sextupole field with magnetic field gradient ∂B/∂rlρs: With the parameters of the NESTOR storage ring, ρ= 0.5 m, B=3.2 T and ∂B/∂r = 1.2 T/cm one can store antihydrogen with v= 600 m/s or equivalent to a temperature of 21 K (!!!) which is easier to produce than required for standard traps.

  48. Sketch of a Lay out of a Sextupole Storage Ring for Antihydrogen HFS Studies

  49. Dibaryon ppK- p Decay (FINUDA) fit region (detector resolution : 10 MeV/c2 FWHM) A.N.Ivanov et al, arXiv:nucl-th/0512037 v1 (2005) B= -119 MeV; = 31 MeV; ~ 0.26 fm-3 [Phys. Rev. Lett. 94, 212303 (2005)]

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