Programme of the symposium on threshold meson production
in pp and pd interaction.


(Extended COSY-11 Collaboration Meeting)

Institute of Physics, Jagellonian University

Hall 057, Reymonta 4, Cracow

20. - 24. June 2001

  
21.06.2001 Thursday

- $\eta$ and $\eta^{\prime}$ production in pp and pd reactions -

Morning session            9:00 - 13:00           Chairman: R. Kulessa


9:00 - 9:15
Welcome / Opening

9:15 - 10:45
Steven Bass (München University $\&$ ECT, Trento)
Gluonic effects in $\eta$ and $\eta^{\prime}$-nucleon interactions

10:45 - 11:15
Pawe Moskal (Jagellonian University $\&$ Research Centre Jülich)
Quasi-free creation of $\eta^{\prime}$ meson in the reaction pn $\to$ pn $\eta^{\prime}$

11:15 - 11:45 coffee break

11:45 - 12:15
Andrzej Magiera (Jagellonian University)
Charge and isospin symmetry breaking in meson production reactions close to $\eta$ threshold

12:15 - 12:40
Heinz-Hermann Adam / Alfons Khoukaz (Münster University)
Study of $\eta$-meson production in the reaction pd $\to$ ³He $\eta$;
one step or two step mechanism?

12:40 - 13:00
Jerzy Smyrski (Jagellonian University)
Investigation of near-threshold $\eta$ production in the pd $\to$ pd $\eta$ reaction

13:00 - 14:00 lunch

21.06.2001 Thursday

- $\eta$ and $\eta^{\prime}$ production in pp and pd reactions -

Afternoon session            14:00 - 18:00        Chairman: A. Budzanowski

14:00 - 14:45
Frieder Kleefeld (CFIF, Lisboa)
ISI and FSI in NN $\to$ NNX reactions close to threshold

14:45 - 15:20
Sasa Ceci (Rudjer Boskovic Institute, Zagreb)
Present knowledge about the pp $\to$ pp $\eta$ reaction and the $\eta$-nucleon interaction

15:20 - 15:40 coffee break

15:40 - 16:10
Roman Skibinski (Jagellonian University)
Faddeev equations and three nucleon forces; introductory lecture

16:10 - 16:40
Kurt Kilian (Research Centre Jülich)
The Dalitz plot as a tool in particle physics

16:40 - 17:10
Slawomir Wycech (Warsaw University)
Final state interactions of $\eta$ mesons and $\eta$-nucleon scattering length

17:10 - 17:30
Peter Winter (Research Centre Jülich)
$\eta$ meson production with a polarized proton beam

17:30 - 18:00
Stanisaw Kistryn (Jagellonian University)
Time reversal symmetry violation: search examples
  
22.06.2001 Friday

- study of $\phi,\ \omega$ and $\eta^{\prime}$ mesons -

Morning session            9:00 - 13:00                           Chairman: K. Kilian

9:00 - 10:30
Kanzo Nakayama (University of Georgia, Athens)
Pseudoscalar and vector meson production in the nucleon-nucleon collisions

10:30 - 11:00 coffee break

11:00 - 11:40
Piotr Salabura (Jagellonian University)
How can we measure meson masses in the dense nuclear matter ?

11:40 - 12:00
Magnus Wolke (Research Centre Jülich)
Total cross section of the pp $\to$ pp $\phi$ reaction at threshold

12:00 - 12:30
Dieter Grzonka / Georg Schepers (CERN $\&$ Research Centre Jülich)
pp $\to$ pp $\omega$ close to threshold

12:30 - 12:45 coffee break

12:45 - 13:10
Alfons Khoukaz (Münster University)
pp $\to$ pp $\omega$ / $\eta^{\prime}$ at higher excess energies

13:10 - 13:40
Hans Stockhorst (Research Centre Jülich)
Stochastic cooling, gamma transitions and future of COSY

13:40 - 14:40 lunch

22.06.2001 Friday

- COSY-11 internal meeting -

Afternoon session            14:30 - 18:00                        Chairman: M. Wolke

14:40 - 15:10
Pawe Moskal (Jagellonian University $\&$ Research Centre Jülich)
- Status of the $\eta^{\prime}$-meson production in the pp interaction
- Do we see signal from f₀ or/and a₀ mesons?

15:10 - 15:30
Marek Siemaszko / Piotr Kowina (University of Silesia, Katowice $\&$ Research Centre Jülich)
Reduction of pion background by means of the Cerenkov detector;
can we measure pp $\to$ n $\Sigma^+$ K⁺ ?

15:30 - 15:50
Christian Kolf (Research Centre Jülich)
Track reconstruction in the hexagonal drift chambers

15:50 - 16:10 coffee break

16:10 - 16:40
Dieter Grzonka (CERN $\&$ Research Centre Jülich)
Physics, simulations and name for the super COSY-11

16:40 -
New detectors: i) mechanical installation, ii) software installation, iii) read out.
Future needs for the COSY-11 facility
Conferences and Publications, open questions and/or concerns, etc.

  
23.06.2001 Saturday

- open strangeness production -

Morning session            9:00 - 13:00                     Chairman: A. Strzakowski

9:00 - 9:30
Piotr Kowina (University of Silesia, Katowice $\&$ Research Centre Jülich)
Energy dependence of the $\Lambda / \Sigma^0$ cross section ratio

9:30 - 10:15
Ashot Gasparyan (ITEP Moscow $\&$ Research Centre Jülich)
Theoretical explanations for the energy dependence
of the $\Lambda / \Sigma^0$ cross section ratio?

10:15 - 10:45 coffee break

10:45 - 11:30
Johann Haidenbauer (Research Centre Jülich)
Theoretical aspects of the pp $\to$ pp K⁺ K^- and pp $\to$ pp a₀/f₀ reactions

11:30 - 12:00
Alfons Khoukaz / Magnus Wolke (Münster University / Research Centre Jülich)
Total and differential cross sections of the pp $\to$ pp K⁺ K^- reaction

12:00 - 12:40
Walter Oelert (CERN $\&$ Research Centre Jülich)
Future Aspects of Physics at COSY

12:40 - 13:00
Magnus Wolke (Research Centre Jülich)
Summary





Afternoon session         18:00 - - -                 Chairman: P. Moskal
$~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \hspace{3.3cm}~~~~~~~~~~~~~~~~~~~~~~$ Violinist: P. Winter

Grill in Czuówek