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A Report from ACFA Linear Collider Physics and Detector Working Group

A Report from ACFA Linear Collider Physics and Detector Working Group. For ACFA Plenary Meeting, 2 Feburary 2007 At Indore, India Prepared by Akiya Miyamoto. Working Group Task.

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A Report from ACFA Linear Collider Physics and Detector Working Group

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  1. A Report from ACFA Linear Collider Physics and Detector Working Group For ACFA Plenary Meeting, 2 Feburary 2007 At Indore, India Prepared by Akiya Miyamoto

  2. Working Group Task The ACFA Linear Collider Physics and Detector Working group has been established since 1998 in response to the ACFA statement. The group has organized workshops and published the report in 2001 which elucidates physics scenario and experimental feasibilities at the linear collider. These activities leaded to the second statement on the e+e- collider issued by ACFA,and ACFA Linear Collider Steering Committee (ALCSC) has been formed to further promote the linear collider project. Under the ALCSC, our group has been transmuted to the sub-group on the linear collider physics and detectors, and Contact persons of the group have also been re-created. Our task is to continue studies on physics at the linear collider more precisely and more profoundly, taking into account progresses in our field, as well as on developments of detector technologies best suited for the linear collider experiment. As we know from past experiences, this will be enormously important to realize the linear collider. 1 August 2003 From http://acfahep.kek.jp/WG

  3. Joint 9th ACFA and GDE Workshop • Feb. 4 -7, IHEP, Beijing http://bilcw07.ihep.ac.cn/ • Held jointly with GDE • Program  see next page • Release of ILC RDR and DCR (Detector Concept Report) • Discuss activities on ILC Physics and Detectors, including plans for coming years • Open/Close sessions of International Review Committee for ILC tracking ( Organized by R&D panel of WWS ) are held in 2nd/3rd day • So far, about 170(60) participants outside (inside) China are registered for ACFA and GDE • About 26 ACFA ( GDE+ACFA ) plenary talks and about 50 parallel talks

  4. Program (ACFA part)

  5. Detector Concept Report (DCR) • DCR is a document accompanied to theILC RDR • DCR consists of Physics and Detector chapters • Editors • Physics: 1 exp.+1theory/region Abdelhak Djouadi, Joe Lykken, Klaus Monig, Yasuhiro Okada, Mark Oreglia and Satoru Yamashita • Detector: 1/region + detector R&D panel John Jaros, Ties Benke, Akiya Miyamoto, C.J.S.Damerell • Detector DCR describes • Challenges of detector performance, concepts, MDI issues, detector technologies, performances, 2 detector issues, options, cost, future step, … • A very preliminary document is available at http://www.linearcollider.org/wiki/doku.php • Feed back from the society and refinements are planed after 9th ACFA Workshop

  6. Roadmap after DCR • After the RDR, GDE intends to prepare an EDR document for 2010 • WWS has started to define its own roadmap in conjunction with ILCSC • Objectives include • Remain in phase with the GDE to start the construction of detectors in parallel with the construction of the machine • Make it possible to start physics 8 years after the beginning of the construction of the machine • EDR ready for 2 Detectors in 2010-2011 which needs an intense technical effort starting early 2009 • We will discuss the issue and a process to guide us at the plenary session of 9th ACFA Workshop

  7. Progresses on ILC Detector R&D • Simulation studies • Calorimeter • Main Tracker:TPC • Inner Silicon Tracker • Vertex Detector

  8. Background simulation by Jupiter FCAL BCAL CH2Mask Simulation Studies • Studies of performance of GLD, based on Geant4 • Detector simulators and reconstruction codes are developed • Kalman track fitter for studies of tracking performance • Particle Flow studies • Studies of beam induced backgrounds/effects to detector performance Reconstructed jet energy resolution almost reaches the goal: ~30%/sqrt(E) GLD geometry in Jupiter

  9. R&D on Scintillator based Calorimeter • Studying scintillator and photon sensors by GLD-CAL group: Kobe, Niigata, Shinshu, Tokyo, Tsukuba (jp), KNU (kr), JINR(rs) • Beam tests are scheduled at DESY/FNAL • in 2007~2010 with CALICE group R&D's are becoming inter-regional Kuraray Mega strip plate Extruded and covered by TiO2 GLD-CAL meeting at Kyungpook Nat. Univ.(Korea), Aug. 2006 KNU strip w/o TiO2 KNU strip w TiO2 Kuraraytile Photon sensors: MPPC's by HPK are under test

  10. GEM membrane Main Tracker:TPC • TPC with read out by Micro Pattern Gaseous Detector is studied • R&D Issues: • Choice of Chamber gasses • Effects of Ion build-up, Ion feedback • Field non-uniformity, Calibration methods • Beam backgrounds • From analysis of beam test data,terms affect spatial resolution is understood • In order to demonstrate the full volume tracking in the non uniform magnetic field of PCMAG, beam tests by the best-at-present MPGD TPC candidates, achieving the expected resolution for LC TPC, are planed. PCMAG arrive at DESY • This is a joint work of LCTPC international collaboration : Member institutes in Asia Tsinghua (China), Hiroshima, KEK, Kiniki, Saga, Kogakuin, Tokyo UA&T, Tokyo, Tsukuba (Japan), Mindanao US-IIT(Philippine)

  11. 5-inch process Poly-Si Resists AC TRK1 P+width:200um Al wdth:220um DC TRK1 P+width:400um Al wdth:420um Test patterns AC TRK2 P+width:300um Al wdth:320um DC TRK2 P+width:600um Al wdth:620um DC1 AC1 AC type Pitch:500um Channel:64 DC type Pitch:1000um Channel:32 PIN diode AC2 DC2 Test patterns Test patterns Test patterns Inner Tracker Study by Korean Group Si strip detectors and read out electronics are developed IT-Barrel IT-Forward VTX Geant4 based simulation study Beamtest and radiation damage test were carried out using 35~45 MeV beam at Korea Institute of Radiological and Medical Science >2 IT layers improve Momentum Resolution

  12. Vertex Detector R&D • ILC Vertex Detector consists of ~10 Giga pixels. Reading out signals of 2820 bunches in 1msec, ILC vertex detector has to achieve the impact parameter resolution, sIP, 5  10/(pb sin3/2q ) mm. • GLD solution : • Fine Pixel CCD ( ~5x5mm2pixels, fully depleted) • 3 super-layers, each consists of 2 layers = 6 layers in total • R&D issues: Resolution, Lorentz angle, charge spread, multi-port high speed readout Setup to test charge spread Vertex Detector sensor layout

  13. Up coming events • Joint GDE and 9th ACFA LC Workshop • At IHEP, 4-7, Feburary, 2007 • LCWS 2007 • Hamburg, Germany, May 30-June 6, 2007 • International Advisory Committee will be formed soon, • WWS OC + LOC of Past WS + theorist from each region

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