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The International Large Detector: Letter of Intent
H. Stoeck, D. Attie1, M. Besancon1, P. Colas1, E. Delagnes1, N. Fourches1, G. Ioannis1, F. Kircher1, P. Lutz1, C. Royon1, M. Titov1, J. Baudot2, A. Besson2, A. Brogna2, G. Claus2, C. Colledani2, R. De Masi2, A. Dorokhov2, G. Doziere2, A. Himmi2, C. Hu-Guo2, M. Imhoff2, I. Valin2, Y. Voutsinas2, M. Winter2, B. Bouquet3, S. Callier3, P. Cornebise3, O. Dadoun3, C. de La Taille3, P. Doublet3, F. Dulucq3, M. Faucci Giannelli3, J. Fleury3, M. Joré3, H. Li3, G. Martin-Chassard3, R. Poeschl3, L. Raux3, F. Richard3, N. Seguin-Moreau3, D. Zerwas3, Z. Zhang3, F. Zomer3, A. Charpy4, W. Da Silva4, G. Daubard4, J. David4, C. Evrard4, J.-F. Genat4, J.-F. Huppert4, D. Imbault4, F. Kapusta4, M. Dhellot4, G. Patrick4, T.H . Pham4, P. Repain4, A. Savoy-Navarro4, R. Sefri4, M. Anduze5, K. Belkadhi5, V. Boudry5, J.-C. Brient5, C. Clerc5, R. Cornat5, M. Frotin5, F. Gastaldi5, D. Jeans5, A. Mathieu5, P. Mora de Freitas5, G. Musat5, M. Reinhard5, M. Ruan5, J.-C. Vanel5, H. Videau5, M. Bedjidian6, C. Combaret6, G. Grenier6, R. Kieffer6, I. Laktineh6, P. Lebrun6, N. Lumb6, H. Mathez6, M. Vander Donckt6, J.-C. Fontaine7, J. Bouvier8, D. Dzahini8, L. Gallin-Martel8, J. Giraud8, D. Grondin8, J.Y. Hostachy8, S. Kraml8, K. Krastev8, E. Lagorio8, L. Morin8, F.E. Rarbi8, C. Vescovi8, M. Yamouni8

The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC. The ILC will collide electrons and positrons at energies of initially 500 GeV, upgradeable to 1 TeV. The ILC has an ambitious physics program, which will extend and complement that of the Large Hadron Collider (LHC). A hallmark of physics at the ILC is precision. The clean initial state and the comparatively benign environment of a lepton collider are ideally suited to high precision measurements. To take full advantage of the physics potential of ILC places great demands on the detector performance. The design of ILD is driven by these requirements. Excellent calorimetry and tracking are combined to obtain the best possible overall event reconstruction, including the capability to reconstruct individual particles within jets for particle ow calorimetry. This requires excellent spatial resolution for all detector systems. A highly granular calorimeter system is combined with a central tracker which stresses redundancy and efficiency. In addition, efficient reconstruction of secondary vertices and excellent momentum resolution for charged particles are essential for an ILC detector. The interaction region of the ILC is designed to host two detectors, which can be moved into the beam position with a push-pull scheme. The mechanical design of ILD and the overall integration of subdetectors takes these operational conditions into account.
1 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
2 :  IPHC - Institut Pluridisciplinaire Hubert Curien
3 :  LAL - Laboratoire de l'Accélérateur Linéaire
4 :  LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
5 :  LLR - Laboratoire Leprince-Ringuet
6 :  IPNL - Institut de Physique Nucléaire de Lyon
7 :  GRPHE - Groupe de Recherche en Physique des Hautes Energies
8 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
Physique/Physique des Hautes Energies - Expérience
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