Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2007-02-21
J.Phys.G34:S733-736,2007
Physics
Nuclear Physics
Nuclear Experiment
4 pages, 4 fugures, contribution to QM'06 conference
Scientific paper
10.1088/0954-3899/34/8/S84
We present a study of the CMS trigger system in heavy-ion collisions. Concentrating on two physics channels, dimuons from decays of quarkonia and single jets, we evaluate a possible trigger strategy for Pb+Pb running that relies on event selection solely in the High-Level Trigger (HLT). The study is based on measurements of the timing performance of the offline algorithms and event-size distributions using full simulations. Using a trigger simulation chain, we compare the physics reach for the jet and dimuon channels using online selection in the HLT to minimum bias running. The results demonstrate the crucial role the HLT will play for CMS heavy-ion physics.
for the CMS Collaboration
Roland Gunther
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