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icon4.gif  MDI Workshop 2004 at SLAC, preliminary talk list [message #172] Wed, 08 December 2004 09:14 Go to next message
Messages: 1
Registered: December 2004
Location: DESY Zeuthen

there is a simple homepage now at Desy Zeuthen with a preliminary collection of talks concerning the very forward region. Lets take this as starting point for further discussion.

Re: MDI Workshop 2004 at SLAC, preliminary talk list [message #173 is a reply to message #172] Wed, 08 December 2004 12:54 Go to previous message
Messages: 12
Registered: November 2004
Location: SLAC
The prelim Session 5 talks have been posted to the MDI Workshop program webpage. Would like to add 1 10' talk by Ray Arnold on "SLAC ESA capabilities for testing forward region detectors";
-- this could lead into short discussion on what beam tests are needed/planned.

Also, here are some notes from a recent discussion at SLAC (among Maruyama, Markiewicz, Graf, Barklow, Arnold, Woods and Torrence) for useful issues to discuss in this session:
  1. electron id and reality of 99.9% efficiency requirement
    1. describe the algorithm used and assumptions made for electron id in BEAMCAL
    2. review curves presented to ITRP and LCWS summarizing efficiency vs radius as function of fake rate; dependence on crossing angle and solenoid compensation
    3. review need for 99+% efficiency
  2. relative importance of 5-40 mrad region
    1. review current SUSY phase space to explain dark matter abundance (ex. Fig. 1 in hep-ex/0406010 -- how much of available phase space is enabled by covering 5-40 mrad region?
    2. review detectors in this region at SLC, LEP, B Factories; ex. OPAL detector. How well did they perform? Is there a negative impact to the crossing angle at the B factories?
  3. using pairs to extract beam parameters?
    1. using BEAMCAL
    2. using wider angle pairs (ex. in VXD)? useful to identify someone for this work; Glen White?
  4. need for beam tests for detectors in this region?
    1. to demonstrate electron id efficiency in presence of pair background?
    2. Radiation hardness?
    3. Achieving 99.9% electron id efficiency -- fluctuations in showers?

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