Dear collegue,

I like to remind you about our meeting to discuss the LDC outline document. The meeting will take place

Thursday, Jan 19, at 06:00 West Coast Time, 15:00 central EU time, 23:00
Tokyo time.

I have reserved the Saturn virtual conference room for the discussion.
If you prefer to call in please call
+494089981390 and type in the code 94918# to join the conference.

If you have problems connecting through either method, please contact me
(Ties.Behnke at desy.de)

We will start the conference at 15:00, but will allow 15min for setup and
connecting people. The actual meeting will start at 15:15 central European time.

Please check www.ilcldc.org -> meetings before the meeting for further material.

For people at DESY: we will meet in the video conference room in building 2b.

Talk to you tomorow,

Ties

Phone/ Video meeting of editors of the LDC outline document
===========================================================

Jan 19/2006

present:

Ties Behnke
Guenter Eckerlin
Tim Greenshaw
Bob Hsiung
Dean Karlen
Wolfgang Lohmann
Klaus Moenig
Dan Peterson
Marcello Picollo
Alexei Raspiereza
Jose Respond
Lee Sawyers
Felix Sefkow
Mark Thompson
Jan Timmermanns
Henri Videau
David Ward
Grahame Wilson
Steve Worm


1) Scope of the outline document:

The outline document - to the best of our current knowlesge -
should be a fairly brief and concise description of LDC. The
total length is expected to be around 100 pages. Of these,
around 50 should be reserved for a description of the subdetectors,
10 for the introduction including physics case, and 20 for an
desciption of the expected performance. The page numbers
are to be understood as approximate, and will be
adjusted as work on the document proceeds.

The document is expected in a first complete version for
Bangalore.

The editors will meet before the EUDET kickoff meeting on Feb 14 and 15 at
DESY, to discuss the draft. It is expected that first versions of
the sections are going to be available for this meeting.

2) The Evaluation Detector

The detector which should be used for the document - called
evaluation detector, to make sure that it is understood really
as a snapshot, not as a decision or frozen detector outline -
is summarised in a separate document.

In the discussion a few open issues were raised:

- the design of the forward region needs to be done for
both 2 and 20mrad crossing angles.
- the design of the beam pipe and the forward SI disks needs to
be iterated and checked.
- for the tracker behind the TPC endplate two different technologies
will be pursued (at least)
- agreement needs to be reached on the proposed external SI tracker.
The propsal made is that this is in the evaluation detector be
implemented as a first layer in the ECAL, which is positioned
before the first absorber, and has a finer granularity.

3) The Document

Editors from the different sub systems briefly presented the state
of their chapters.
Editors are encouraged to upload as often as possible new
versions to the WEB, to allow people to follow the progress.
The outline of the document foresees at least two different
levels of performance sections:
- within subdetector or subdetector groups, performance sections
should describe the subdetector specific performance. For the
calorimeter that might mean the single particle resolutions,
energy resolutions, spatial resolutions.
- the final performance section will summarise the overall
detector performance, including overall particle flow.
This section might also present results from overall
analyses as far as they are relevant for the detector optimization.

The final performance section is supplemented by an section
on benchmark reactions. In this relevant benchmarks are briefly
summarised, possible together with a description of a number of
relevant analyses done based on these benchmarks.

In general given the rather early time at which we are
expected to deliver the DOD it is clear that many
studies will not be finished in time to be included.
It is therefore important that each group includes a
description of the plans in the section, and lays down
urgent and relevant studies which need to be done.


4) The next phone meeting of the editors is scheduled for
Wednesday, Feb 8, probably again at 15:00 central Europe time
(but proposals for different times are entertained).