Annual report / Institut für Kernphysik and COSY Research 2000
Annual report / Institut für Kernphysik and COSY Research 2000
The present annual report summarizes the research at the Cooler Synchrotron (COSY) at theForschungszentrum Jülich (FZJ) and in particular it covers the activities of the Institut fürKernphysik (IKP) at COSY and various external research facilities for the year 2000.When browsing through the pages yo...
Saved in:
Personal Name(s): | Baur, G. (Editor) |
---|---|
Filges, D. (Editor) / Kilian, Kurt (Editor) / Maier, Rudolf (Editor) / Rossen, P. von (Editor) / Sistemich, K. (Editor) / Speth, J. (Editor) / Ströher, H. (Editor) / Freiesleben, H. (Editor) | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
2001
|
Physical Description: |
250 p. |
Document Type: |
Report Book |
Research Program: |
ohne Topic |
Series Title: |
Berichte des Forschungszentrums Jülich
3852 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
The present annual report summarizes the research at the Cooler Synchrotron (COSY) at theForschungszentrum Jülich (FZJ) and in particular it covers the activities of the Institut fürKernphysik (IKP) at COSY and various external research facilities for the year 2000.When browsing through the pages you will realize that $\underline{COSY}$ has been doing exceptionallywell. The accelerator delivered proton beams - unpolarized or polarized, electron orstochastically cooled, slowly or fast extracted - for internal and external experiments withremarkable reliability. The total operation time of COSY during the year again was close to7500 hours. Important milestones like the acceleration of polarized protons up to themaximum energy (see also picture on the front page) and the acceleration of a deuteron beamup to 3 GeV/c have been achieved. Thus it is now possible to perform experiments withdeuteron projectiles, eventually also polarized. Ultrafast extraction has been developed so thatproton bursts of 2x10$^{9}$ particles could be delivered to the JESSICA-experiment within a few100 ns. Another breakthrough was attained for the polarized source, which allowed runningfor 70 days for experiments without service of its inner parts. The superconducting test cavityfor the ESS linac has been set up and first tests were performed.The $\underline{experiments}$ at the internal and external target positions of COSY have made use of theproton beam for more than 6100 hours. You will find many interesting and exciting results ofthese measurements in the pages to follow. $\underline{ANKE}$ has obtained differential cross sections andcross section ratios for K$^{+}$-production at subthreshold energies. $\underline{COSY-11}$ and $\underline{TOF}$ havecontinued their investigations of strangeness production in proton-proton collisions. $\underline{EDDA}$had a long and sucessful run measuring spin correlation coefficients in double polarizationexperiments, making use of their polarized atomic beam source. $\underline{GEM}$ at BIG KARL haslooked for isospin symmetry breaking in pion production reactions. $\underline{MOMO}$ has carried on itsdata taking for K$^{+}$K$^{-}$ production in proton-deuteron reactions. For the first time an experimentat COSY has come to an end: the $\underline{COSY-13}$ measurements have been completed with asuccessful run on hypernuclei production in proton-nucleus interactions, using gold anduranium targets. In the meantime the setup has been dismantled to allow mounting of a newexperiment. ESS related activities have become more important: for example a newexperiment at an external target position has been set up ($\underline{JESSICA}$) in order to study andoptimize a test version of what will be the ESS target station.Members of the institute are participating in external experimental collaborations, too: in$\underline{ATRAP}$ at the AD (CERN, Switzerland) [anti-hydrogen], in $\underline{EUROBALL}$ (Legnaro, Italy)[nuclear spectroscopy], at PSI (Villigen, Switzerland) [pionic atoms], with $\underline{TAPS}$ at MAMI(Mainz, Germany) [photonuclear reactions], in $\underline{WASA}$ at CELSIUS (Uppsala, Sweden)[hadronic interactions], in $\underline{ZEUS}$ at DESY (Hamburg, Germany) [elementary particle physics]and at GSI (Darmstadt, Germany) [atomic physics]. Results of these activities are also foundbelow. |