BaBar Level 1 Drift Chamber Trigger Upgrade

Details BaBar Level 1 Drift Chamber Trigger Upgrade BaBar Level 1 Drift Chamber Trigger Upgrade

2002-09-23

arxiv.org/abs/hep-ex/0209063v1

eConf C020620 (2002) THAP09

Physics

High Energy Physics

High Energy Physics - Experiment

Poster presentation at the XXII Physics in Collisions Conference (PIC02), Stanford, Ca, USA, June 2002, 3 pages, LaTeX, 2 eps

Scientific paper

As PEP-II is exceeding the original design luminosity, BaBar is currently upgrading its Level 1 Drift Chamber Trigger (DCT) to reduce the rate of background Level 1 triggers by more than 50% while preserving the high Level 1 trigger physics efficiency. New Z-Pt-Discriminator VME boards (ZPD) utilizing the stereo hit information from the drift chamber are being built to extract the track z coordinate at the beam line with a resolution of a few centimeters.

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