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Pawe ł Moskal

Interaction of pseudoscalar mesons with nucleons and nuclei. Pawe ł Moskal. Jagiellonian University , Cracow , Poland. Abstract: We will review experiments and phenomenology of the η , η ́ and K mesons interaction with nucleons and nuclei p.m., Few Body Syst. 55 (2014) 667.

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Pawe ł Moskal

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  1. Interaction of pseudoscalar mesonswith nucleons and nuclei Paweł Moskal JagiellonianUniversity, Cracow, Poland Abstract: We will review experiments and phenomenology of the η, ήand K mesons interaction with nucleons and nucleip.m., Few Body Syst. 55 (2014) 667 HADRONS IN NUCLEAR MEDIUM IIKEK Tokai Campus (JPARC), Japan, 24-25 October 2014

  2. JagiellonianUniversity 1364 Collegium Maiusat the universitysince1400 historicalentanglement

  3. JagiellonianUniversity 1364 Collegium Maiusat the universitysince1400 historicalentanglement

  4. K+ K- ηꞌ η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume R. Pohl et al., The size of the proton, Nature 466 (2010) 213 A. Liesenfeld et al., Phys. Lett. B468 (1999) 20 Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012)

  5. Production of mesonsatthreshold • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei? • challenges to theory

  6. threshold as a spinfilter 3P01S0s in the laboratory P 3 GeV/c h P beforereaction: afterreaction: in the centre of mass system P h 1 GeV/c P 1 GeV/c L = 1, S = 1 L = 0, l=0 Reaction parameter b 0.2 fm

  7. experimental challenge !

  8. COoler Synchrotron COSY pppppd3He COolerSYnchrotron COSY COoler SYnchrotron COSY • polarised and unpolarised proton • and deuteron beams • stochastic and electron cooling • momentum range: 600 – 3700 MeV/c • meson production up to (1020)

  9. The naturalwidth of the ήmeson • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei? • K+K- interaction η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012) R. Pohl et al., The size of the proton, Nature 466, 213 (2010)

  10. Clustertarget COSY-11 scintillator driftchambers scintillator

  11. cluster target COSY-11 scintillators driftchambers scintillator

  12. COSY-11 E. Czerwinski, p.m. et al., Phys. Rev. Lett. 105 (2010) 122001 COSY-11: Phys. Rev. Lett. 105 (2010) 122001

  13. The ή - proton hadronicinteraction σ= dVps |M|2 p η |M|2 ~ |M0|2 |MFSI|2 E. Czerwinski, p.m. et al.,Phys. Rev. Lett. 113 (2014) 062004 COSY-11: Phys. Rev. Lett. 113 (2014) 062004

  14. threshold as a spinfilter 3P01S0s in the laboratory P 3 GeV/c h P beforereaction: afterreaction: in the centre of mass system P h 1 GeV/c P 1 GeV/c L = 1, S = 1 L = 0, l=0 Reaction parameter b 0.2 fm

  15. The ή - proton hadronicinteraction σ= dVps |M|2 p η |M|2 ~ |M0|2 |MFSI|2 E. Czerwinski, p.m. et al.,Phys. Rev. Lett. 113 (2014) 062004 COSY-11: Phys. Rev. Lett. 113 (2014) 062004

  16. Productionmechanism • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei ? • K+K- interaction η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012) R. Pohl et al., The size of the proton, Nature 466, 213 (2010)

  17. production dynamics e.g.mesonη σ = dVps |M|2 What would the first experimental physicists tell us? |M|2 ~ |M0|2 |MFSI|2 Salviati. But if, of many computations, not even twocame out in agreement, what would you think of that? Simplicio. If that is how the matters stand, it is truly a serious defect GALILEO GALILEI ”Dialogue concerning the two chief world systems” dynamics →|M0|2 Whatwould the best student of the Jagellonian University tell us? He is encouraging us to continue: For what is determinate cannot have innumerable explanations NICOLAUS COPERNICUS ”Minor Works III, Letter against Wagner” ONE NUMBER and MANY GRAPHS

  18. dynamics →|M0|2 LARGE → RESONANSE CELSIUS COSY SATURNE

  19. X X X • STRONG ISOSPIN DEPENDENCE • Eta meson is by factor of 12 • more coupiously produced • when the total isospin of nucleons • is equal to 0 • than when it is equal to 1 • Strong evidence of isovectormeson • exchange inproduction mechanism CELSIUS COSYSATURNE

  20. This was PREDICTED already about 2500 years ago by the very first physicists Thus, it is suggested that among created beings there must be some basic agent which will move things and bring them together ARISTOTLE “Metaphysics” X X X X p r R. Czyżykiewicz, p.m. et al.,Phys. Rev. Lett. 98 (2007) 122003 COSY-11: Phys. Rev. Lett. 98 (2007) 122003

  21. WASA-at-COSY p pp pM109and1011π0on discsp pp p106mesons on discs; Polarization of about70% (factor of 500 largerstatistics ) →

  22. WASA WASA A WARSHIP built for the war with Poland whichsank in 1628 in the middle of Stockholm harbour after sailing barely 1300 meters

  23. COolerSYnchrotron COSY WASA-at-COSY pppppd3He • polarised and unpolarised proton • and deuteron beams • stochastic and electron cooling • momentum range: 600 – 3700 MeV/c • meson production up to (1020)

  24. Borromeanstate ? • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei? • K+K- interaction η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012) R. Pohl et al., The size of the proton, Nature 466, 213 (2010)

  25. σ = dVps |M|2 η |M|2 ~ |M0|2 |MFSI|2 |MFSI|2 ~ |Mpp|2 |Mp1η|2 |Mp2η|2 dynamics →|M0|2 interaction→ σ (Q) CELSIUS, COSY, SATURNE + + S. Wycech, Acta Phys. Polon. B 27(1996) 2981

  26. Borromeanrings from nucleons 6He + + Borromeannuclei: 6He, 11Li,14Be

  27. A. Deloff, AIP Conf. Proc. 950 (2207) 150 η „At present it is not possible to draw a solid quantitative conclusion about the sizeof the system since e.g. in the case of the pp → pp reaction it would require to solve a three-body problem where pp and p-eta interactions are not negligible and bothcontribute significantly to the proton-proton correlation. However, based on semiquantitativepredictions one can estimate that the system must be unexpectedlylarge with a radius in the order of 4 fm” + P. Klaja, p.m. et al., J. Phys. G 37 (2010) 055003 + Correlationfemtoscopy Koonin-Pratt model [2]

  28. V. Baru et al., PRC 67 (2003) 024002 p.m. et al.,Phys.Rev. C69 (2004) 025203 COSY TOF, COSY-11, WASA/CELSIUS

  29. pppp  ppppꞌ P. Klaja, p.m. et al., Phys.Lett. B684 (2010) 11-16

  30. WASA-at-COSY p pp pM109and1011π0on discsp pp p106mesons on discs; Polarization of about70% (factor of 500 largerstatistics ) →

  31. Mesicnuclei ? • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei? • K+K- interaction η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012) R. Pohl et al., The size of the proton, Nature 466, 213 (2010)

  32. 3Heinteraction (pd3HeX) η   + +

  33. η T. Mersmann et al., Phys. Rev. Lett. 98, 242301 (2007)  - 3He • dp3Heγ 3He3He MAMI COSY + + MAMI: M. Pfeifferet al.,Phys. Rev. Lett. 92 252001 (2004) F. Pheron et al., Phys. Lett. B709 21 (2012) ANKE:T. Mersmann et al.,Phys. Rev. Lett. 98 242301 (2007) COSY-11: J. Smyrski et al., Phys. LettB 649 258-262 (2007)

  34. η  - 3He + COSY-ANKE Phys.Lett. B734 (2014) 333 + C.Wilkin et al., Phys. Lett. B654 (2007) 92‏

  35. Attractive interaction between η and N (R. Bhalerao and L. C. Liu, Phys. Lett. B54 (1985) 685 )‏ possible existence of bound states of the η mesonwith nuclei for A>10 (Q. Haider and L. C. Liu, Phys. Lett. B172 (1986) 257 )‏ • (C.Garcia-Recio, T. Inoue, J.Nieves, • E. Oset,Phys.Lett.B550 (2002)47).

  36. η bound state possible with the light nuclei C. Wilkin, Phys. Rev. C47 (1993) 938 3He-η3H-η4He-η Supported by model calculations of: - S. Wycech et al., Phys. Rev. C52(1995)544 (the multiplescatteringtheory) … … … ηꞌ-nuclear andη-nuclear bound states revisited D. Jido, H. Naghiro, S. Hirenzaki, Phys. Rev. C66 (2002) 045202 H. Nagahiro, S. Hirenzaki, Phys. Rev. Let. 94 (2005) 232503 S. Hirenzaki et al., Acta Phys. Pol. B41 (2010) 2211 E. Friedman, A. Gal, J. Mares, Phys.Lett. B725 (2013) 334 S. Hirenzaki, H. Nagahiro, Acta Phys. Pol. B45 (2014) 619

  37. THEETA-MESIC NUCLEUS η mesonbound with nucleus via STRONG INTERACTION η + + π‾ N* + N* COSY, J-PARC, MAMI, GSI, LPI/JINR Talk by Wojciech Krzemieńatthisconference … G. A, Sokol et al., arXiv:nucl-ex/0106005

  38. THEETA-MESIC NUCLEUS η mesonbound with nucleus via STRONG INTERACTION η γ + + γ COSY, J-PARC, MAMI, GSI, LPI/JINR Talk by Wojciech Krzemieńatthisconference … G. A, Sokol et al., arXiv:nucl-ex/0106005

  39. WASA-at-COSY →

  40. d+d→(4He-η)bound→3He + p + π- d+d→3He + p + π- SIMULATIONS EXPERIMENT Upper limit of about 25 nb WASA-at-COSY: Phys. Rev. C87(2013) 035204

  41.  - 4He ~25nb -- Presentexperimentalupper limit . WASA-at-COSY: Phys. Rev. C87(2013) 035204~ 4 nb -- Theoreticalestimation. S. Wycech, W. Krzemien , Acta. Phys. Pol. B45 (2014) 745 ~ fewnb -- WASA-at-COSY data collected in 2010 .  - 3He ~270 nb -- Presentexperimentalupper limit pppπ- p.m., J. Smyrski, Acta Phys. Pol B41 (2010) 21 ~80 nb -- Theoreticalestimation. C. Wilkin, Acta. Phys. Pol. B45 (2014) 603 ~ 10nb -- expected from New WASA-at-COSY data collected in May 2014

  42. 3Heinteraction (pd3HeX) η   + +

  43. Fig. from C. Kerboul et al., PL B181(1986)28 3Hethreshold COSY-11 dp  3He o COSY-11 (dp  (3He -) bound3He o) < 70 nb p.m., J.Smyrski, Acta Phys. Pol B41 (2010) 21

  44. K+K- interaction • experimentalaspects • naturalwidth of the ήmeson • ή -proton interaction • production dynamics • η-proton-proton interaction • Borromean-states? • η-nucleusinteraction • mesic-nuclei? • K+K- interaction η I thought… the scientifictheorieswere not the digest of observation, but thattheywereinventions-conjecturesboldlyputforward for trial to be eliminatediftheyclashed with observation … David Hume Transition Form-Factors: J. ZdebikPhD JU (2013); M.HodanaPhD JU (2012) R. Pohl et al., The size of the proton, Nature 466, 213 (2010)

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