Speaker
Dr
Livio Fano'
(INFN - Universita' degli Studi di Perugia)
Description
The CMS detector is a general purpose experiment for the LHC. At the designed maximum
luminosity more than 10**9 events/second will be produced, while the data acquisition
system will be able to manage 100 Hz bandwidth. The trigger strategy for CMS is
organised in 2 steps: a first level hardware trigger is implemented taking advantage
of the fast response dectors, as the mu-chambers and the calorimeter systems; the
event rate in this step will be reduced by a factor 10**4. The second level step,
called the High Level Trigger (HLT), is based only on software algorithms; the aim is
to reduce the event rate to 100 Hz. In the HLT process all the CMS subdetectors
participate with a very fast reconstruction of the relevant physics objects, thus
allowing the possibility toselect a large number of specific final states. In this
talk we will concentrate on the performances reached for the lepton-tau and the
quark-b identification, that are very important for several future physics studies.
Primary author
Dr
Livio Fano'
(INFN - Universita' degli Studi di Perugia)
