Patrick Janot Introduction  TLEP / FCC-ee u Physics, Experiments, Detectors break-out session l Conveners: Alain Blondel, Patrick Janot è Follows six LEP3 / TLEP workshops è Towards Design Study organization FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 1

Patrick Janot FCC: Strategy/Motivation  European Strategy Statement u Approved by CERN council in May 2013, see herehere l Study a 100 TeV machine in a km tunnel FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 2 FCC-hh Can also host a GeV e  e  collider as an intermediate step FCC-ee

Patrick Janot TLEP/FCC-ee : Physics case  European Strategy Statement u Approved by CERN council in May 2013, see herehere FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 3 FCC-ee?

Patrick Janot TLEP/FCC-ee : Physics case  European Strategy Statement u Approved by CERN council in May 2013, see herehere FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 4 FCC-ee, FCC-hh? FCC-ee?

Patrick Janot TLEP/FCC-ee : Physics case  European Strategy Statement u Approved by CERN council in May 2013, see herehere u Additional comment in the European Strategy statement l What about FCC-ee ? FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 5 FCC-ee, FCC-hh? FCC-ee?

Patrick Janot FCC-ee, FCC-hh FCC-ee  European Strategy Statement u Approved by CERN council in May 2013, see herehere u Additional comment in the European Strategy statement J “The FCC-ee / FCC-hh combination offers, for a great cost effectiveness, the best precision and the best search reach on the market”, see JHEP01(2014)164JHEP01(2014)164 TLEP/FCC-ee : Physics case FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 6 = 2×10 4 LEP, 1000 ILC = 5×10 6 LEP, 100 ILC = 5000 LEP (for W pairs), 35 ILC (for HZ) = 7 ILC Highest achievable energy to be determined ( GeV?)

Patrick Janot TLEP/FCC-ee : Physics case  Examples of what unequalled precision buys at FCC-ee: u Sensitivity to weakly-coupled new physics up to 30 TeV (via Z, W, top properties) l Complementary to FCC-hh: direct sensitivity to coloured new physics up to 30 TeV u Sensitivity to new physics coupled to the Higgs sector up to 5-10 TeV l Via measurements of Higgs couplings and width down to 0.1% precision  Sensitivity to other new physics through rare decays (Z, W, H, t, b, c, , …) u Sensitivity to the (heavy, sterile) neutrino sector through invisible decays u Direct searches for rare processes FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 7

Patrick Janot TLEP/FCC-ee Design Study: Physics  Experimental Physics Programme u Study the properties of the Higgs and other particles with unprecedented precision 8 Electroweak Physics at the Z pole Di-boson Physics m W measurement H(126) PropertiesTop Quark Physics QCD and  Physics Flavour PhysicsExp’tal signatures of New Physics FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors

Patrick Janot TLEP/FCC-ee Design Study: Physics  Experimental Physics Programme u Study the properties of the Higgs and other particles with unprecedented precision u Set constraints on the possible detector designs to match statistical precision 9 Electroweak Physics at the Z pole Di-boson Physics m W measurement H(126) PropertiesTop Quark Physics QCD and  Physics Flavour PhysicsExp’tal signatures of New Physics Detector Designs FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors

Patrick Janot  Experimental Physics Programme u Study the properties of the Higgs and other particles with unprecedented precision u Develop the necessary tools Understand the experimental conditions u Set constraints on the possible detector designs to match statistical precision TLEP/FCC-ee Design Study: Physics 10 Electroweak Physics at the Z pole Di-boson Physics m W measurement H(126) PropertiesTop Quark Physics QCD and  Physics Flavour PhysicsExp’tal signatures of New Physics Detector Designs Exp’tal Environment Offline Software and Computing Online Software and Computing FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors

Patrick Janot TLEP/FCC-ee Design Study: Physics  Phenomenology/Theory Programme u Set up a long-term programme to match theory predictions to experimental precisions  Understand how new physics would show up in precision measurements, and in searches for rare decays (Z, W, t, H, b, c, , …) and rare processes u Set up the framework for global fits and understand the complementarity with other colliders (LHC, FCC-hh, in particular) FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 11 Model Building and New Physics Precision EW calculations Global Analysis, Combination, Complementarity QCD and  Physics Flavour Physics

Patrick Janot TLEP/FCC-ee Design Study: Timeline  From Michael’s Benedikt presentation u We are here at “Phase 0” (Preparation) FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 12

Patrick Janot TLEP/FCC-ee Design Study: Phase 0  Preparation has started ahead of the kick-off meeting u With the proposal of a Work Breakdown Structure (WBS): to be discussed together l i.e., a number of working groups in “Experiments” and in “Phenomenology” u With the nomination of one high-profile convener for each working group l To plan and start the Exploration phase (Phase 1) è … and possibly beyond l To propose names for working group co-conveners è Targeting international collaboration and global effort l To propose names for sub-group conveners è ibid.  We do not start from scratch anyway u Many synergies exist with linear collider studies l And possibly with linear collider teams: contacts are more than welcome !  Synergies with other circular e  e  colliders and with FCC-hh whenever appropriate u A first look at the TLEP Physics case [JHEP01(2014)164] has already been given l Although many new aspects will come up during the design study è What can be done with, e.g., Z is beyond (current) imagination FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 13

Patrick Janot  Experimental Physics WBS (coordinators A. Blondel, P. Janot) u Study the properties of the Higgs and other particles with unprecedented precision u Develop the necessary tools Understand the experimental conditions u Set constraints on the possible detector designs to match statistical precision TLEP/FCC-ee Design Study: Physics WBS 14 Electroweak Physics at the Z pole R. Tenchini Di-boson Physics m W measurement R. Tenchini H(126) Properties TBA Top Quark Physics P. Azzi QCD and  Physics D. d’Enterria Flavour Physics S. Monteil Exp’tal signatures of New Physics TBA Detector Designs G. Rolandi Exp’tal Environment N. Baccheta Offline Software and Computing TBA Online Software and Computing C. Leonidopoulos FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors Synergy with FCC-hh Synergy with linear collider detectors

Patrick Janot TLEP/FCC-ee Design Study: Physics WBS  Phenomenology/Theory WBS (coordinators J. Ellis, C. Grojean) u Set up a long-term programme to match theory predictions to experimental precisions  Understand how new physics would show up in precision measurements, and in searches for rare decays (Z, W, t, H, b, c, , …) and rare processes u Set up the framework for global fits and understand the complementarity with other colliders (LHC, FCC-hh, in particular) FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 15 Model Building and New Physics TBA Precision EW calculations S. Heinemeyer Global Analysis, Combination, Complementarity TBA QCD and  Physics (Joint exp/th) P. Skands Flavour Physics (Joint exp/th) TBA Synergy with FCC-hh physics Linear collider physics, LEP physics

Patrick Janot Today’s breakout session  Preliminary thoughts from (some of) the working group conveners FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 16

Patrick Janot WG9: Offline software (& computing)  Possible synergy with FCC-hh u Common framework u Parametric simulation u Data format u MC Generators u Simulation u Reconstruction u Computing support FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 17

Patrick Janot WG3: H(126) Properties  Scientific objectives u Couplings u Widths u Mass u Strategy u Detector design u Exp’tal limitations u Theory limitations u Larger √s ? FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 18

Patrick Janot WG7: Exp’tal signatures of new physics  Scientific objectives u Rare decays u Rare processes u Direct searches u Generators u Detector design u Strategy FCC Break-Out session (14-Feb-2014) Lepton Collider: Physics, Experiments, Detectors 19