The PS185 experiment was originally proposed in 1981 to the CERN PS committee (proposal P49, CERN/PSCC/81-69) by Kurt Kilian and his co-workers. The experiment was complemented with the solenoid magnet as baryon identifyer a year later (Memorandum M122, CERN/PSCC/82-57).
The first data taking happened in 1984. Since, plenty of data for a variety of proton antiproton annihilation channels with strangeness in the final state have been accumulated. The high quality data have inspired lots of theoretical work in the field. The observation of an irregularity in the energy dependence total cross sections around 1 MeV above the reaction threshold for Lambda Antilambda production has lead to a second proposal P266 (CERN/SPSLC/92-6), for which data were taken in summer 1994. The observation of the violation of the Ellis Jaffe sum rule in lepton nucleon deep ineleastic scattering as well as the progress of the models describing hyperon production has resulted in a new proposal P287 (title page only, CERN/SPSLC/95-13) to investigate spin transfer observables in the reaction with a polarized proton target. Data have been taken from September to December 1996 with a frozen spin polarized target and the PS185 spectrometer at three LEAR momentum settings: 1525, 1642 and 1800 MeV/c.
Chris Maher, Carnegie-Mellon 1986
Werner Dutty, Freiburg 1988
Roland von Frankenberg, Erlangen 1989
Georg Sehl, Jülich 1989
Heiko Schledermann, Freiburg 1989
Jean Seydoux, Carnegie-Mellon 1990
Staffan Ohlsson, Uppsala 1990
Friedrich Stinzing, Erlangen 1991
Thomas Sefzick, Jülich 1992
Horst Fischer, Freiburg 1992
Michal Ziolkowski, Jülich 1992
Reiner Geyer, Erlangen 1993
Ralph-Andre Kraft, Erlangen 1994
Ralf Todenhagen, Freiburg 1995
Rex Tayloe, Urbana-Champaign 1995
Ralf Bröders, Jülich 1995
Kirsten Sachs, Jülich 1996
Tim Jones, Urbana-Champaign 1996
Horst Dennert, Erlangen, in preparation
Jörg Hauffe, Erlangen, in preparation
Brian Bunker, Urbana-Champaign, in preparation
Stephan Pomp, Uppsala, in preparation
Michael Plückthun, Bonn, in preparation
Paul Kingsberry, Albuquerque, in preparation
Kent Paschke, Carnegie-Mellon, in preparation