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Linear Collider@CERN Workshop 2026
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503/1-001 - Council Chamber (CERN)
Erik Adli
(University of Oslo (NO)),
Jenny List
(Deutsches Elektronen-Synchrotron (DE))
Description
Following the outcome of the European Strategy for Particle Physics, this workshop organised in the context of LCVision will discuss the next steps for a linear collider at CERN, including the technical work in the preparation phase, the long-term evolution with future upgrade options as well as organisational aspects.
The meeting will take place at CERN, and be run in hybrid mode. The zoom link will be communicated to registered participants only.
The registration is free of charge and is mandatory to attend the event.
The participants of the workshop put together the statement linked here.
Data Privacy Protection Policy : OC no.11 - Privacy Notice
Administrative Support
Participants
221
View full list
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11:00
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13:00
Executive session (closed) 503/1-001 - Council Chamber
LCVision Editorial Board, IDT Executive Board, CLIC Accelerator Steering Committee, parallel session conveners
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13:00
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14:00
Lunch 1h Restaurant 1
Restaurant 1
CERN
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14:00
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18:15
Opening Plenary: EPPSU reports, overview and strategic talks 503/1-001 - Council Chamber
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14:00
Speaker: Mark Thomson (CERN)
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14:10
Charge to Linear Collider at CERN study and/or the Workshop 15m 503/1-001 - Council ChamberSpeaker: Jenny List (Deutsches Elektronen-Synchrotron (DE))
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14:25
Physics case of linear colliders - what we know and what we don’t know 30m 503/1-001 - Council ChamberSpeaker: Dr Junping Tian (The University of Tokyo)
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14:55
ITN status and how it could contribute to LinearCollider at CERN study 20m 503/1-001 - Council ChamberSpeaker: Shinichiro MICHIZONO (KEK)
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15:15
CLICX X-band and two-beam technology outlook 20m 503/1-001 - Council ChamberSpeaker: Walter Wuensch (CERN)
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15:35
CLIC & ILC: main linacs, BDS and IP parameters - differences and commonalities 25m 503/1-001 - Council ChamberSpeaker: Daniel Schulte (CERN)
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16:00
Coffee 30m 61/1-201 - Pas perdus - Not a meeting room - (CERN)
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16:30
ATF2 status & plans 20m 503/1-001 - Council ChamberSpeaker: Toshiyuki Okugi
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16:50
US Priorities for Future Collider Accelerator R&D 20m 503/1-001 - Council ChamberSpeakers: Spencer Gessner, Spencer Gessner (SLAC)
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17:10
Japan’s take on LinearCollider at CERN 20m 503/1-001 - Council ChamberSpeaker: Masaya Ishino (University of Tokyo (JP))
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17:30
Status of CEPC and thoughts on a linear collider 20m 503/1-001 - Council ChamberSpeaker: Prof. Jie Gao (Institute of High Energy Physics, Chinese Academy of Sciences (CN))
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17:50
A linear collider at CERN: Workplan for 2026-28 25m 503/1-001 - Council ChamberSpeaker: Steinar Stapnes (CERN)
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14:00
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18:30
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20:00
Reception 61/1-201 - Pas perdus - Not a meeting room -
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11:00
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13:00
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09:00
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13:10
Plenary: accelerator baseline, upgrade options and physics&detectors status 503/1-001 - Council Chamber
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09:00
Speaker: Karl Jakobs (University of Freiburg (DE))
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09:25
Start-to-end simulations for ILC & CLIC 15m 503/1-001 - Council ChamberSpeaker: Andrea Latina (CERN)
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09:40
Accelerator design & integration considerations for a LinearCollider@CERN 20m 503/1-001 - Council ChamberSpeaker: Dr Benno List (Deutsches Elektronen-Synchrotron (DE))
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10:00
BDS for a Linear Collider @ CERN 15m 503/1-001 - Council ChamberSpeaker: Rogelio Tomas Garcia (CERN)
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10:15
CFS conventional facilities & siting for a LinearCollider at CERN 15m 503/1-001 - Council ChamberSpeaker: Edward Fraser MacTavish (CERN)
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10:30
Positron source for a linear collider: status and plans 15m 503/1-001 - Council ChamberSpeaker: Steffen Doebert (CERN)
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10:45
Coffee 25m 61/1-201 - Pas perdus - Not a meeting room - (CERN)
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11:10
Upgrades to higher energies - C3 & and SRF-based 15m 503/1-001 - Council ChamberSpeakers: Emilio Alessandro Nanni, Emilio Nanni, Emilio Nanni (Unknown), Emilio Nanni (SLAC National Accelerator Laboratory)
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11:25
Upgrades to highest energies - wakefield acceleration 15m 503/1-001 - Council ChamberSpeaker: Marlene Turner (CERN)
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11:40
Upgrades to highest luminosities (ERL-based schemes) 20m 503/1-001 - Council ChamberSpeaker: Peter Williams
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12:00
Gamma-Gamma Collider Option 15m 503/1-001 - Council ChamberSpeaker: Tim Barklow (SLAC National Accelerator Laboratory (US))
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12:15
e+e- detector concepts, focus on MDI & software/computing 20m 503/1-001 - Council ChamberSpeaker: Roman Poeschl (Université Paris-Saclay (FR))
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12:35
Beam dump & fixed target experiments 15m 503/1-001 - Council ChamberSpeaker: Patrick Koppenburg (Nikhef National institute for subatomic physics (NL))
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12:50
LCF cost estimate & introduction to parallel sessions 20m 503/1-001 - Council ChamberSpeaker: Jenny List (Deutsches Elektronen-Synchrotron (DE))
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09:00
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13:10
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14:00
Lunch 50m Restaurant 1
Restaurant 1
CERN
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14:00
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16:30
Beam Delivery Systems, Extraction Lines & IR design 61/1-007 - Room BConveners: Dr Angeles Faus-Golfe (IJClab IN2P3 CNRS-Université Paris-Saclay (FR)), Rogelio Tomas Garcia (CERN)
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14:00
Gamma-gamma IR design 10mSpeaker: Tim Barklow (SLAC National Accelerator Laboratory (US))
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14:20
First look at a 10 TeV CoM BDS design 15mSpeaker: Keegan Everett Downham (Univ. of California Santa Barbara (US))
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14:45
FFS chromaticity correction for the Ghost collider 15mSpeaker: Bamunuvita Gamage (Jlab)
- 15:05
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14:00
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14:00
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16:30
Conveners: Carlo Rossi (CERN), Edward Fraser MacTavish (CERN)
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14:00
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16:30
Detector (focus on MDI / concept simulation) 503/1-001 - Council ChamberConveners: Aidan Robson (University of Glasgow (GB)), Frank-Dieter Gaede (Deutsches Elektronen-Synchrotron (DE)), Roman Poeschl (Université Paris-Saclay (FR))
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14:00
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16:30
JOINT AD&I accelerator design and parameters + CFS conventional facilities & siting 4/3-001Conveners: Dr Benno List (Deutsches Elektronen-Synchrotron (DE)), Erik Adli (University of Oslo (NO))
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14:00
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15:30
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14:00
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14:00
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16:30
Conveners: Gudrid Moortgat-Pick, Steffen Doebert (CERN)
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14:00
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16:30
Conveners: Emilio Nanni (SLAC National Accelerator Laboratory), Marlene Turner (CERN), Tim Barklow (SLAC National Accelerator Laboratory (US))
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14:00
Introduction & Goal of the Discussion 30m
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14:30
Discussion: SRF 30m
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15:00
Discussion: CLIC, C3 30m
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15:30
Discussion: Wakefield Accelerators 1h
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14:00
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15:00
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16:30
Main linac technologies - SRF & CLIC & HL-RF & …: State-of-the-art and potential workplan discussion 53/R-044Conveners: Marc Wenskat, Walter Wuensch (CERN)
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16:30
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17:00
Coffee Break 30m 61/1-201 - Pas perdus - Not a meeting room
61/1-201 - Pas perdus - Not a meeting room
CERN
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17:00
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18:00
Plenary: intermediate working group reports 503/1-001 - Council Chamber
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09:00
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13:10
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09:00
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12:00
Conveners: Ivo Schulthess (ETH Zurich), Patrick Koppenburg (Nikhef National institute for subatomic physics (NL))
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09:00
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10:30
JOINT AD&I accelerator design and parameters + CFS conventional facilities & siting 4/3-001Conveners: Dr Benno List (Deutsches Elektronen-Synchrotron (DE)), Erik Adli (University of Oslo (NO))
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09:00
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12:00
Conveners: Marc Wenskat, Marc Wenskat, Walter Wuensch (CERN)
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09:00
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12:00
Priorities for sharpening the LC Physics case 503/1-001 - Council ChamberConveners: Graham Wilson (The University of Kansas (US)), Juergen Reuter (DESY Hamburg, Germany), Dr Junping Tian (The University of Tokyo), Marcel Vos (IFIC Valencia (ES))
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09:00
Introductory Remarks 10mSpeaker: Graham Wilson (The University of Kansas (US))
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09:10
Physics studies for 10 TeV plasma based linear colliders 20mSpeaker: Simon Knapen
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09:30
New physics potential of TeV-scale colliders 20mSpeaker: Aleksander Zarnecki (University of Warsaw (PL))
- 09:50
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10:10
Electroweak physics perspectives 20mSpeaker: Graham Wilson (The University of Kansas (US))
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10:30
Coffee Break 30m
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11:00
Improving the Higgs self-coupling analysis 8mSpeaker: Julie Munch Torndal (CERN)
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11:08
Probing new physics using 2-fermion topologies at LC featuring beam polarization and high energy reach 8mSpeaker: Roman Poeschl (Université Paris-Saclay (FR))
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11:16
Impact of quark flavor violating SUSY on h(125) decays at future lepton colliders 8mSpeaker: Keisho Hidaka
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11:24
Probing Dark Matter at Linear Colliders Using Extended Higgs Sectors 8mSpeaker: Juhi Dutta
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11:32
Discussion 28m
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09:00
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09:00
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12:00
Conveners: Emilio Nanni (SLAC National Accelerator Laboratory), Marlene Turner (CERN), Tim Barklow (SLAC National Accelerator Laboratory (US))
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09:00
Reminder of the Scope 15m
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09:15
Discussion: Wakefield Accelerators 45m
- 10:00
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10:30
Discussion: Gamma, gamma 30m
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11:00
Work Plan + Prioritizing 1h
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09:00
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10:30
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11:00
In pas perdus
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10:30
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11:00
JOINT AD&I accelerator design and parameters + CFS conventional facilities & siting: Coffee break (by Council Chamber)
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11:00
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12:00
JOINT AD&I accelerator design and parameters + CFS conventional facilities & siting: Preparing priorities and timelines
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12:00
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13:00
Lunch 1h Restaurant 1
Restaurant 1
CERN
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13:00
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16:01
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13:00
WG report: AD&I accelerator design and parameters 15mSpeakers: Dr Benno List (Deutsches Elektronen-Synchrotron (DE)), Erik Adli (University of Oslo (NO))
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13:15
WG report: Main linac technologies - SRF & CLIC & HL-RF 15mSpeakers: Marc Wenskat, Walter Wuensch (CERN)
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13:30
WG report: Beam Delivery Systems, Extraction Lines & IR design 15mSpeakers: Dr Angeles Faus-Golfe (IJClab IN2P3 CNRS-Université Paris-Saclay (FR)), Rogelio Tomas Garcia (CERN)
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13:45
WG report: Upgrade options 15mSpeakers: Emilio Alessandro Nanni, Emilio Nanni (Unknown), Marlene Turner (CERN)
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14:00
Minute of silence for Crans-Montana 1m
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14:01
WG report: CFS conventional facilities & siting 10mSpeakers: Edward Fraser MacTavish (CERN), John Andrew Osborne (CERN)
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14:11
WG report: Positron source 10mSpeakers: Gudrid Moortgat-Pick, Steffen Doebert (CERN)
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14:21
WG report: Detector 10mSpeakers: Aidan Robson (University of Glasgow (GB)), Frank-Dieter Gaede (Deutsches Elektronen-Synchrotron (DE)), Roman Poeschl (Université Paris-Saclay (FR))
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14:31
WG report: Sharpening the physics case 15mSpeakers: Graham Wilson (The University of Kansas (US)), Juergen Reuter (DESY Hamburg, Germany), Dr Junping Tian (The University of Tokyo)
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14:46
WG report: Beyond colliders 10mSpeakers: Ivo Schulthess (ETH Zurich), Patrick Koppenburg (Nikhef National institute for subatomic physics (NL))
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14:56
Community organisation, way forward 1h 5m
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13:00
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16:10
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18:10
Executive session (closed) 503/1-001 - Council Chamber
LCVision Editorial Board, IDT Executive Board, CLIC Accelerator Steering Committee, parallel session conveners
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09:00
→
12:00