World Wide Study for Future e+e- Linear Collider 워크숍 참가보고

1. World Wide Study for Future e+e- Linear Collider 워크숍 참가보고 박환배(경북대), 오선근 (건국대)

2. LCWS 워크숍 역사 - 1991.9.9-14 Saariselka in Finland - 1993.4.26-30 Hawaii in USA - 1995.9.8-12 Morioka-Appi in Japan - 1998.4.28-5.5 Sitges in Spain - 2000.10.24-28 Fermilab in USA - 2002.8.26-30 Jeju island in Korea - 2004.4.19-23 Paris in France - 2005.3.17-23 Stanford in USA International activities on LC physics/detector are intensifying : Every 2yrs → Every 1.5 yrs → Every <1 yr

3. 향후 국제워크숍 스케줄 - ACFA8, Daegu, Korea, Jul 11-14, 2005 - Snowmass (ALCPG with WWS), Aug 14-27, 2005 - ECFA, Vienna, Austria, Nov 14-17, 2005 - LCWS2006, in Asia, Mar, 2006 웹 사이트: http://chep.knu.ac.kr/ACFA8 참가 등록받고 있는 중

4. LCWS2002 v.s. LCWS2005 • 20개국으로부터 396명 참가 Canada: 7 Korea : 7 Chile : 1 Norway : 1 China : 3 Poland : 4 Czech : 8 Russia : 6 Finland : 1 Switzerland : 7 France : 27 Taiwan : 2 Germany : 50 UK : 24 Israel : 2 USA : 178 Italy : 19 Austria: 4 Japan : 41 India: 4 • 18개국으로 부터 167명 참가 Canada: 4 Korea : 33 Chile : 1 Norway : 1 China : 1 Poland : 2 Czech : 1 Russia : 2 Finland : 1 Switzerland : 5 France : 9 Taiwan : 1 Germany : 20 UK : 7 Israel : 1 USA : 36 Italy : 5 Japan : 37

5. Korean Activities in the Workshop • • plenary session chair in 1st day of workshop • • 4 talks in parallel session • - “probing resonant H and A Higgs Mixing in CP-Noninvariant 2HDM” (최성열) • - “Fabrication and Measurements of DSSD”(박환배) • - “CERN Beam Test of Silicon-Tungsten Calorimeter Test Module”(남신우) • - “The Status of the Scintillator-Based Calorimetry R&D Activities”(김동희) • • working group conveners • - SUSY Particle • - Tracking and Vertexing • - Calorimetry and Muons • • aR&D panel member • - 3 members from each region

6. ILC Parameters • 1 단계 - 에너지: 200  500 GeV, 에너지 스캔가능 - 첫 4년동안 500 fb-1 실험데이터 획득 - 향후 2년안에 휘도를 2배 증가 • 2 단계 - 에너지를 1 TeV 까지 업그레이드 - 3~4년동안 1000 fb-1 실험데이터 획득 • 옵션 - γγ, γe-, e-e-, Giga-Z, 전자 및 양전자 편광 • 2개의 충돌지점  2개의 검출기 • 2015년부터 충돌실험을 시작

7. Bunch Compression SLC, FFTB, ASSET, E-158 SLC and FEL’s SLC and ePreservation BDS & IR Test Accelerator SLC, E-158 Linac ATF, 3rd Gen Light Sources, SLC Damping Rings e+ / e- Sources ILC Test Facilities

8. ▣ 3 Detector Concepts • •다른 검출기 개념 그룹에 동시에 참여하여 일할 수 있다. • • 옆의 검출기 개념 그림은 최종확정된 것은 아니며, • 최적화을 위한 연구수행이 필요하다. • •가속기 파라미터의 약 80%는 8월에 있을 snowmass회의에서 결정될 것이다. • •이에 따른 시뮬레이션 및 벤치마크 연구 수행이 필요하다.

9. Detector Concept Study • GLD (Global Large Detector) - TPC, 3T magnetic field - W/Scintillator Electromagnetic calorimeter (“large radius”) - 6 “contact person”: H.B. Park, H. Yamamoto, R. Settles, G. Wilson, M. Thomson, +1 candidate being selected • SiD (Silicon Detector) - Silicon tracker, 5T magnetic field - Si/W Electromagnetic calorimeter - 4 “coordinators”: J.Jaros, H. Weerts, H. Aihara, Y. Karyotakis • LDC (Large Detector Concept) - TPC, 3T magnetic field - Si/W Electromagnetic calorimeter (“medium radius”) - 6 “contact person”: T. Rehnke, H. Videau, D. Karlen, M. Battaglia, Y. Sugimoto, +1 candidate being selected

10. 2004 2005 2006 2007 2008 2009 2010 GDE (Design) (Construction) Technology Choice Acc. CDR TDR Start Global Lab. Detector Outline Documents CDRs LOIs Det. Done! Detector R&D Panel Collaboration Forming R&D Phase Detector Construction Tevatron SLAC B HERA LHC T2K 향후의 일정