R. Aleksan Saclay Novembre 5, 2014 Informations générales Etudes conjointes IHEP/Tsinghua – Saclay Prochain RV

8th FCC-ee WORKSHOP All presentations accessible from Date: 3 rd – 5 th February 2015 Venue: Scuola Normale Superiore – Pisa Local Organizers: Gigi Rolandi, Roberto Tenchini 9th FCC-ee Workshop

10 13 Z decay 10cm to 5m Z decay 10cm to 1m New ideas: search for Heavy (sterile) Neutrinos Simulation tools being slowly set up  Tutorial Tunnel Location  Development of Tool using detailed site geology

Tunnel location: topography [1/3] Minimize ground coverage –Hydrostatic pressure for TBM tunnelling –Shaft depth/cost Ph. LebrunFCC-ee Workshop Paris Oct Plaine du genevois 350 – 550 m/mer Mont Salève Lac Léman 300 – 372 m/mer Mandallaz Bornes – Aravis 600 – 2500 m/mer Plateau du Mont Sion 550 – 860 m/mer Pré-Alpes du Chablais 600 – 2500 m/mer Vallon des Usses 380 – 500 m/mer Vallée du Rhône  330 m/mer Valée de l’Arve 400 – 600 m/mer Massif du Jura 550 – 1720 m/mer

93km “optimised” racetrack PRELIMINARY Ph. LebrunFCC-ee Workshop Paris Oct J. Osborne & C. Cook

ICHEP’14: “ICFA supports studies of energy frontier circular colliders and encourages global coordination“ All presentations accessible from 99 registered participants China: 47, India: 1, Italy: 3, Japan: 7, Mongolia: 2, Russia: 10, South Africa: 1, Sweden: 1, Switzerland: 11, USA: 17

7 NB (AB): time scale for FCC-ee similar to CLIC (2030++) ON THE MAP! 2014 F. Gianotti, LHCP2014

A Window of Opportunity for CEPC-SPPC 26% 19% 12% 10% 4% 2% 2.4%

Objective CepC:  End 2014: First Draft CepC Proposal CepC for internal review  Beginning 2015: External Review  Spring 2015: Submission proposal  Summer/fall 2015: Decision from Government for 5 yeras R&D support

Etudes conjointes IHEP/Tsinghua - Saclay Fort souhait des physiciens IHEP et Tsinghua (CEPC) de collaborer avec Saclay Il est aussi de notre intérêt de collaborer avec eux pour suivre les développements de CEPC et éventuellement de faire des études conjointes Discussion avec Tsinghua en cours: Après discussions lors de la réunion FCPPL, nous avons convenu R&D communes sur la TPC accueil de thésard chinois vers 2 nd semestre 2015 On pourrait finaliser cela lors du meeting FCPPL à Hefei du 8 au 10 Avril 2015:

FCC-ee vidyo meetings: FCC-ee (TLEP) VIDYO meetings & Workshops FCC-hh (VHELHC) VIDYO meetings Many vidyo meeting done: Next meeting scheduled: Nov. 24 (Higgs/EWSB group, workplan discussion) Last Physics meeting Sep. 1 st see Next accelerator meeting Dec. 1 st Next accelerator meeting Nov. 3 rd see Flavor Physics meeting Sep. 3 rd see

First FCC Week Conference Washington DC March draft poster