The Physics of ALICE HLT Trigger Modes

Details The Physics of ALICE HLT Trigger Modes The Physics of ALICE HLT Trigger Modes

2002-12-19

arxiv.org/abs/hep-ex/0212050v2

Physics

High Energy Physics

High Energy Physics - Experiment

25 pages, 4 figures

Scientific paper

We discuss different physics cases, mainly of the ALICE TPC, such as pile-up, jets in pp and PbPb, Bottonium and Charmonium spectroscopy, and there corresponding demands on the ALICE High Level Trigger (HLT) System. We show that compression and filter strategies can reduce the data volume by factors of 5 to 10. By reconstructing (sub)events with the HLT, background events can be rejected with a factor of up to 100 while keeping the signal (low cross-section probes). Altogether the HLT improves the discussed physics capabilities of ALICE by a factor of 5-100 in terms of statistics.

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