BaBar Level 1 Drift Chamber Trigger Upgrade

Valerie Halyo

BaBar Level 1 Drift Chamber Trigger Upgrade

High Energy Physics - Experiment 2007-05-23 v1

Authors: Valerie Halyo

Abstract

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.

Cite

@article{arxiv.hep-ex/0209063,
  title  = {BaBar Level 1 Drift Chamber Trigger Upgrade},
  author = {Valerie Halyo},
  journal= {arXiv preprint arXiv:hep-ex/0209063},
  year   = {2007}
}

Comments

Poster presentation at the XXII Physics in Collisions Conference (PIC02), Stanford, Ca, USA, June 2002, 3 pages, LaTeX, 2 eps figures. PSN THAP09

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