|Re: MDI Workshop 2004 at SLAC, preliminary talk list [message #173 is a reply to message #172]
||Wed, 08 December 2004 12:54
Registered: November 2004
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:
- electron id and reality of 99.9% efficiency requirement
- describe the algorithm used and assumptions made for electron id in BEAMCAL
- review curves presented to ITRP and LCWS summarizing efficiency vs radius as function of fake rate;
dependence on crossing angle and solenoid compensation
- review need for 99+% efficiency
- relative importance of 5-40 mrad region
- review current SUSY phase space to explain dark matter abundance (ex. Fig. 1 in hep-ex/0406010 http://arxiv.org/PS_cache/hep-ph/pdf/0406/0406010.pdf) -- how much of available phase space is enabled by covering 5-40 mrad region?
- 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?
- using pairs to extract beam parameters?
- using BEAMCAL
- using wider angle pairs (ex. in VXD)? useful to identify someone for this work; Glen White?
- need for beam tests for detectors in this region?
- to demonstrate electron id efficiency in presence of
- Radiation hardness?
- Achieving 99.9% electron id efficiency -- fluctuations in showers?