検出器R＆Dの国際協力

ＬＣ推進委員の皆様

　将来の検出器R＆Dのありかた等を話すために、Monpellier ECFA LCWSにおいて worldwide phys/det subcommitte co-chair の会合を開く事を提案し受け入れられました。Co-chair（Dave Miller, Jim Brau, HY) にWei-shu Hou, Rolf Heuer を加えて、１１月１５日の昼食時に１時間程話しました。提案は地域の検出器R＆Dをいかに統合していくか、LCの collaboration の形成にむけてどのような organization を作っていくかということです。Dave Miller は 地域のLCWS を統合したいという要望を持っていた様です。

　話の結論は、各地域の検出器R&Dは緊密に連絡を保つ必要があるが、いま collaboration のようなものを作るのは時期尚早であるという事です。緊密に連絡を保っていけば LCが承認された段階で自然にいくつかの collaboration に収束するという描像です。 僕自身それに賛成ですが、その収束段階で主導権を採れるような準備をしておく 必要があります。Phys/det subcommitte の下にR＆D subsubcommittee がありますが、 それが、今までより重要な役割を果たす可能性が指摘されました。地域のLCWS を統合 する事に関しては、Jim Brau が強く反対しました。いまアメリカはLC R&Dを立ち上げて いるところなので、年２回の北米LCWSを開催したいという事でした。その他、LCWS に関する事を議論しましたが、下に Dave Miller の議事録を添えます。

Notes on a meeting of the co-chairs, Montpellier 14/11/03

  1. WE PROPOSE A MEETING OF THE WORLDWIDE ORGANISING COMMITTEE AT THE SLAC WORKSHOP, 7-10 JANUARY, WITH PHONE IN. TO TAKE PLACE AT 14.00 HOURS PACIFIC TIME.
    (To John Jaros; will you be able to set this up for us please? We still need to pick the day.)
  2. Rolf Heuer and George Hou joined us for a discussion of the Worldwide detector R&D group.

    We recall that there are currently two separate kinds of detector activity:

    The whole-detectors have been designed and modelled by members of the regional studies. It is important that work on them continues until a funded Linear Collider Laboratory calls for proposals for the final experiments - which will come from international consortia.

    The sub-system R&D is being done by specialised collaborations, many of which are inter-regional. The Worldwide detector R&D group was set up to encourage these collaborations, to keep them in touch with each other, to list them on the web and to identify missing R&D activities which need to be started up. Results from the collaborations are being fed into the development of all of the whole-detector designs.

    One of the successful activities of the R&D group has been to organise worldwide video meetings on detector topics on the day before a regional workshop; most recently Calorimetry at Montpellier. Vertex detectors will be dealt with at Mumbai in December; Tracking at SLAC in January.

    WE PROPOSE THAT, AFTER LCWS PARIS, THESE VIDEO MEETINGS SHOULD BE INCORPORATED INTO THE REGIONAL STUDIES as their Calorimetry, Vertexing or Tracking parallel sessions (in turn - as they have been).

    WE ALSO ASK THE R&D GROUP TO REVIEW THEIR CHARGE AND MEMBERSHIP - reporting to our meeting at the SLAC workshop in January. (N.B. Present R&D group membership is Hwanbae Park, Hitoshi Yamamoto, Yoshiaki Fujii, Keith Riles, Jim Brau, Gene Fisk, Rolf Heuer, Ron Settles, Chris Damerell).

  3. WE PROPOSE THAT LCWS WORKSHOPS SHOULD CONTINUE AT APPROXIMATELY 18 MONTH INTERVALS. Regions will organise their local workshops in between - perhaps missing one of their local cycle when they host the LCWS. WE FURTHER PROPOSE THAT THE SIX MEMBERS OF THE WORLDWIDE OC FOR A REGION WILL CONSULT WITH COLLEAGUES TO AGREE THE VENUE FOR THE LCWS AND TO PROPOSE THE DATE (to be approved by the Worldwide OC, after checking clashes with other events.) If agreed, Jim Brau will start this process for the next LCWS in North America, September/October 2005.
  4. LCWS Paris; programme decisions:
Yours ever
Hitoshi, Jim, David