Author/Authors :
Abolins، نويسنده , , M. and Adams، نويسنده , , M. and Adams، نويسنده , , T. and Aguilo، نويسنده , , E. and Anderson، نويسنده , , J. and Bagby، نويسنده , , L. and Ban، نويسنده , , Richard J. and Barberis، نويسنده , , E. and Beale، نويسنده , , S. and Benitez، نويسنده , , J. and Biehl، نويسنده , , J. and Bowden، نويسنده , , M. and Brock، نويسنده , , R. and Bystricky، نويسنده , , J. and Cwiok، نويسنده , , M. and Calvet، نويسنده , , D. and Cihangir، نويسنده , , S. and، نويسنده ,
Abstract :
Increasing luminosity at the Fermilab Tevatron collider has led the D0 collaboration to make improvements to its detector beyond those already in place for Run IIa, which began in March 2001. One of the cornerstones of this Run IIb upgrade is a completely redesigned level-1 calorimeter trigger system. The new system employs novel architecture and algorithms to retain high efficiency for interesting events while substantially increasing rejection of background. We describe the design and implementation of the new level-1 calorimeter trigger hardware and discuss its performance during Run IIb data taking. In addition to strengthening the physics capabilities of D0, this trigger system will provide valuable insight into the operation of analogous devices to be used at LHC experiments.
Keywords :
Fermilab , DZero , trigger , Calorimeter , D0
