Welcome to the Beam Pipe Calorimeter
(BPC) Home Page

For bug reports or questions about this page, please contact:
Antonio Pellegrino

DESY Hamburg-- ZEUS,
Phone:(+49)(40)8998 3691, Fax: (+49)(40)8998 3092, e-mail: antonio@mail.desy.de

Physics Motivation The physics motivation for building a new BPC.
History A brief history of the BPC.
Trigger The trigger configuration and history for 1995 data taking.
Reconstruction
Up-to-date information about the BPC electron finder and how to extract BPC information can be found here. I have kept the old link here for consultation.
MC The status and availablity of the Monte Carlo simulation with 1995 geometry, i.e. the new beam pipe, moved RCAL, and with the BPC implemented.

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Instruction for the BPC on-call person.
Documentation
A collection of BPC related documents. Particularly, there are some instructions about What to Do When there is a panic during data taking.
You can also look at some BPC related information in DESY VAXNEWS desy.zeus.bpc folder. (the full list for ZEUS is here), or at the BPC electronic log book for recent BPC events/happenings.
Here is the link the 'what-to-do-when' for BPC HV slow control (here you can still find the old link to the BPC HV control).
If you encouter problems with the BPC timing, please take a look on this before calling the experts (D. Kcira, T. Monteiro).
If you have any questions about BPC hardware or software, talk to the experts.

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Weekly Meeting There is a weekly BPC meeting which addresses general and detailed BPC issues. Trigger and analysis issues are also discussed here. You can find some of the meeting minutes.

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BPC status and results
Useful plots and figures
Vertex and BPC timing The BPC signals are used to determine the z coordinate of the interaction vertex before physics runs.
BPC South performance at the DESY beam test.

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BPC Upgrade projects
BPT--a silicon tracker in front of the BPC
BPC III--a PbWO4 crystal calorimeter