Author/Authors :
Erdmann، نويسنده , , W. and Bertl، نويسنده , , W. and Horisberger، نويسنده , , R. and Kنstli، نويسنده , , H.C. and Kotlinski، نويسنده , , D. and Kِnig، نويسنده , , S. and Langenegger، نويسنده , , U. and Meier، نويسنده , , B. and Radicci، نويسنده , , V. and Rohe، نويسنده , , T. and Starodumov، نويسنده , , A. and Streuli، نويسنده , , S.، نويسنده ,
Abstract :
The pixel detector of the CMS experiment will need to be replaced after a couple of years of LHC running because of radiation damage. On the other hand, plans for a step wise luminosity upgrade of the accelerator beyond the present design value around 2014 are being prepared. While the replacement pixel detector must be designed to handle increased particle rates, it should maintain or improve the tracking performance of the present system and must be compatible with existing services.
