Central Tracker subgroup
This page provides the information about simulations and analysis tools
for ACFA studies.
What's New ?
December 16, 1999 : The page is created.
The central tracker subgroup (acfa-cdc) consists of these
people. The subgroup's mission is to submit to
ACFA a possible central tracker design that satisfies requirements from
various physics and experimental conditions at the linear collider. The
most stringent constraints on the tracker design come from the following:
Currently, feasibility of a large cylindrical drift chamber with mini-jet
cells is being actively pursued by the
JLC CDC group as a primary candidate to meet these conditions. There
can, however, be other, possibly beter,
solutions. The working group welcomes such new ideas. It is also important
to consider the
tracking system as a whole: the vertex detector and the intermediate
tracker should be regarded as a part of the tracking system. In the course
of detector parameter reconcilation including revision of magnetic field
strength, it is highly desirable that simulation studies be carried out
with such point of view.
Recoil mass resolution for e+e- going to Zh followed
by Z to l+l- should not be limited by the tracker
resolution, but only by the natural beam energy spread. This requires
a momentum resolution of 0.4% or better for 50 GeV lepton tracks.
Jet invariant mass resolution comparable with the natural width of W/Z
bosons. This requires good track-cluster matching, demanding spatial resolution
of O(1mm) in the axial direction, and efficient tracking at high track
density as in jets, which in turn necessitates two-track seperation better
Time stamping capability to reject mini-jet BG.
If you are not yet registered as a ACFA working group member, join
us. You can check "Central Tracker" to join our acfa-cdc mailing list.
If you are already in the ACFA working group but not in the central tracker
subgroup and that you are interested in getting included in the list, please
Once subscribed, you can submit you message to firstname.lastname@example.org
, then your message will be distributed to all the subscribers.
Post your software/reports : We acknowledge your contribution to the library.
Please let us know your goodies.
November 26-27, 1998 : 1st
ACFA LCWS, Beijing, China
November 3-6, 1999 : 2nd ACFA LCWS,
Tracking System for Asian Joint Linear Collider" , a talk by Norik
Khalatyan at ACFA LCWS99 in Beijing (Nov. ,1998)
for Asian Joint Linear Collider", a talk by Norik Khalatyan at LCWS99
in Sitges (May, 1999)
Central Tracker R&D", a talk by Keisuke Fujii at ACFA LCWS99 in
Seoul (Nov. ,1999)
"A Compact Detector for LC", a
talk by Sun Kee Kim at ACFA LCWS99 in Seoul (Nov., 1999)
"Intermediate Tracker Option", a talk by Hong Joo Kim at ACFA LCWS99 in
Seoul (Nov., 1999)
of Tarck Matching with Inetermediate Tracker", a talk by Hye Yong Yang
at ACFA LCWS99 in Seoul (Nov., 1999)
To ACFA Joint Linear Collider Working Group home page
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Last update: 16 December, 1999