Author/Authors :
Barr، نويسنده , , G.D. and Bruschini، نويسنده , , C. and Bocquet، نويسنده , , C. Hecht-Buchholz and W. Merbach ، نويسنده , , P. and Cundy، نويسنده , , D. and Doble، نويسنده , , N. and Funk، نويسنده , , W. and Gatignon، نويسنده , , L. and Gonidec، نويسنده , , A. and Hallgren، نويسنده , , B. and Kesseler، نويسنده , , G. and Lacourt، نويسنده , , A. and Laverrière، نويسنده , , G. and Linser، نويسنده , , G. and Martini، نويسنده , , M. and Norton، نويسنده , , A. and ، نويسنده ,
Abstract :
The NA48 collaboration is preparing a new experiment at CERN aiming to study CP violation in the K0-K0 system with an accuracy of 2 × 10−4 in the parameter Re(ϵ′/ϵ). Decays in two π0ʹs will be recorded by a quasi-homogeneous liquid krypton calorimeter. A liquid krypton calorimeter has been chosen to combine good energy, position and time resolution with precise charge calibration and long-term stability. The prototype calorimeter incorporating the final design of the electrode read-out structure is presented in this paper. An energy resolution of ≃3.5%√E with a constant term smaller than 0.5% has been obtained. The time resolution was found to be better than 300 ps above 15 GeV.
