Author/Authors :
Pysz، نويسنده , , K. and Zychor، نويسنده , , I. and Hermes، نويسنده , , T. Steger-Hartmann، نويسنده , , M. R. Ohm، نويسنده , , H. and Kulessa، نويسنده , , P. and Borgs، نويسنده , , W. and Koch، نويسنده , , H.R. and Maier، نويسنده , , R. and Prasuhn، نويسنده , , D. and Rudy، نويسنده , , Z. and Kamys، نويسنده , , B. and Cassing، نويسنده , , W. and Pfeiffer، نويسنده , , J. and Uozumi، نويسنده , , Y. and Jarczyk، نويسنده , , L. and Strza?kowski، نويسنده , , A. and Schult، نويسنده , , O.W.B. Schult، نويسنده ,
Abstract :
For the measurement of the lifetime of the Λ hyperon in very heavy hypernuclei we have used proton projectiles for the production of strangeness and the recoil shadow method in the circulating beam of COSY-Jülich. This permitted us to use a very thin ribbon target without loss in luminosity. The target fabrication and frameless mounting is described in detail. A special mode of operating COSY was developed in order to bump the beam onto the target and to apply a supercycle. A description is given of the apparatus, tests, the calibration and the data analysis. As an example the p+Bi results are presented and discussed.
