5th FCC Physics Workshop
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Welcome to the 5th FCC Physics workshop in Liverpool!

The event is supported by the European Union's Horizon 2020 research and innovation programme under grant agreement No 951754.
For health reasons, the 5th FCC Physics workshop will finally be held as a purely online event. All plenary and parallel sessions will be accessible for remote participants by a zoom link. Sessions will generally run 8.30 - 12.00 and 13.00-17.00 UK time (UTC).
The structure of the week will be as follows
- Monday am: Welcome, overview of FCC feasibility and Physics studies
- Monday pm: Higgs Physics 1 (ee/hh)
- Tuesday morning: Higgs physics 2, PID and flavour tagging
- Tuesday afternoon: Flavour (tau, b) physics
- Wednesday morning: Detector session
- Wednesday afternoon: QCD and Precision EW
- Thursday morning: ee/ep/hh MDI, Software
- Thursday afternoon: Direct searches for new particles
- Friday morning (start 8:30 UTC):
Selected physics Highlights
Joint Software/performance/detector - Friday afternoon: Status and future plans, outlook
The detailed timetable is now posted
Following the recommendations from the European Strategy for Particle Physics, CERN has now launched the FCC Feasibility study (FCC-FS), of the FCC colliders (ee and hh) as a global project with its international partners[1]. The study goals include optimization of the placement and layout of the ring and related infrastructure, and demonstration of the geological, technical, environmental and administrative feasibility of the tunnel and surface areas, as well as the preparatory administrative processes required for a potential project approval, together with the Host States. The study will deepen the design of FCC-ee and FCC-hh and their injectors, supported by R&D on key technologies. The financial feasibility study will focus on the first stage (tunnel and FCC-ee)[2]. One of the pillars of the FCC-FS organization is the Physics Experiments and Detectors (PED) study, in which the physics case and detector concepts will be consolidated for both colliders (FCC-ee and FCC-hh, with its heavy ion programme and with the e-p option)[2].
The 5th FCC Physics, Experiments and Detectors workshop will reflect the status and achievements of FCC PED studies and initiate new activities. All PED Working group packages will be represented, Physics Programme, Physics Performance, Detector Concepts and Physics Software and Computing, as well as the joint FCC-ee Accelerator-Experiment working groups (machine-detector interface (MDI) and centre-of-mass energy calibration, polarization and monochromatization (EPOL)). Joint sessions and tutorials will reinforce the synergies between working groups.
The workshop welcomes the widest community, geographically, thematically (colliders and beyond), and members of other ‘Higgs factory’ and future projects.
If you want to remain up-to-date on the FCC physics and experiments activities, or if you plan to participate in the study, please register to the mailing lists at the following URLs:
https://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=fcc-experiments-lepton
https://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=fcc-experiments-hadron
https://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=fcc-experiments-ep
[1] CERN council documents describe the organization and milestones of the FCC-FS;
[2] More details can be found in the kick-off presentations at the FCC week in June 2021.
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Welcome and overview: 1Convener: Andrew Pilkington (University Of Manchester)
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Welcome to the 5th FCC Physics WorkshopSpeaker: Carsten Peter Welsch (Cockcroft Institute / University of Liverpool)
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The FCC feasibility studySpeaker: Michael Benedikt (CERN)
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The R&D on High Field MagnetsSpeaker: Soren Prestemon
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ECFA and the FCCSpeaker: Karl Jakobs (Albert Ludwigs Universitaet Freiburg (DE))
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10:10
Coffee break
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Welcome and overview: 2Convener: Franco Bedeschi (Universita & INFN Pisa (IT))
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Recap of the FCC-ee physics potential and open questionsSpeaker: Christophe Grojean (DESY (Hamburg) and Humboldt University (Berlin))
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Recap of the FCC-hh physics potential and open questionsSpeaker: Monica D'Onofrio (University of Liverpool (GB))
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Recap of the FCC-eh physics potential and open questionsSpeaker: Daniel Britzger (Max-Planck-Institut für Physik München)
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PED study introduction and goals of meetingSpeaker: Patrick Janot (CERN)
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12:00
Lunch
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Higgs Physics: 1Convener: Elisabetta Gallo (DESY)
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FCC in America and the Snowmass processSpeaker: Sarah Eno (University of Maryland (US))
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Higgs couplings and naturalnessSpeaker: Ennio Salvioni (Universita e INFN, Padova (IT))
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Higgs mass and ZH cross-section from Z(mumu)H eventsSpeakers: Ang Li (APC, CNRS/IN2P3 and Université de Paris), Jan Eysermans (Massachusetts Inst. of Technology (US))
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Higgs to invisibleSpeakers: Andrew Mehta (University of Liverpool (GB)), Nikolaos Rompotis (University of Liverpool (UK))
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15:00
Coffee break
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Higgs Physics: 1Convener: Paris Sphicas (CERN/Athens)
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Hbb, Hcc, HggSpeaker: Giovanni Marchiori (APC, CNRS/IN2P3 and Université de Paris)
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Higgs self-couplingSpeaker: Roberto Salerno (Centre National de la Recherche Scientifique (FR))
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HH in the bbtautau channel @ FCC-hh
Di-higgs studies in the bb-tautau channel, and BSM Higgs searches at the FCC-hh,
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Detecting Heavy Higgs Bosons from Natural SUSY at a 100 TeV Hadron ColliderSpeaker: Howard Baer
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Di-Higgs with missing transverse momentum at FCC-hhSpeaker: Birgit Sylvia Stapf (Deutsches Elektronen-Synchrotron (DE))
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Unveiling the Higgs at FCC-hh with new diboson precision measurementsSpeaker: Alejo Nahuel Rossia (University of Manchester)
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Higgs Physics: 2Convener: Yves Sirois (Centre National de la Recherche Scientifique (FR))
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Higgs and Electroweak ep Physics at FCC-ehSpeaker: Christian Schwanenberger (Deutsches Elektronen-Synchrotron (DE))
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MonochromatizationSpeaker: Frank Zimmermann (CERN)
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Particle ID with Dual Readout calorimeterSpeakers: Luca Torresi (INFN - National Institute for Nuclear Physics), luca torresi
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A beam test for the cluster counting techniqueSpeaker: Francesco Grancagnolo (Universita & INFN Lecce (IT))
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10:10
Coffee break
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Higgs Physics: 2Convener: Freya Blekman (Deutsches Elektronen-Synchrotron (DE))
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Flavour Tagging with ParticleNetSpeakers: Loukas Gouskos (CERN), Michele Selvaggi (CERN)
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Strange Jet Tagging at FCCee using CNNsSpeakers: Eduardo Ploerer (University of Zurich (CH)), Eduardo Plorer (VUB (BE))
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12:00
Lunch break
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Flavour at FCCConvener: Chris Quigg (Fermi National Accelerator Lab. (US))
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Tau physicsSpeaker: Alberto Lusiani (Scuola Normale Superiore and INFN, sezione di Pisa)
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Probing B-Anomalies via Dimuon Tails at a Future ColliderSpeaker: Sebastian Jaeger (University of Sussex (GB))
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Discovering true tauonium in two-photon fusion processes at FCC-eeSpeakers: David d'Enterria (CERN), Hua-Sheng Shao (Peking University,Beijing,China)
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14:45
Coffee break
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Flavour at FCCConvener: Zoltan Ligeti (Lawrence Berkeley National Lab. (US))
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Ks reconstruction and B+ to D K+Speaker: Emmanuel Francois Perez (CERN)
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21st Century Particle Physics: Discussions on Science and Faith
Particle physicists working on CERN’s next large particle collider - the Future Circular Collider, and theologians will discuss the common ground between science, philosophy, and religion.
This event is open to all people and is not restricted to any particular faith.
To register, please visit: physicsandfaith.eventbrite.co.uk
Panel members:
• Fr. Andrew Pinsent, Research Director at the Ian Ramsey Centre for Science and Religion, University of Oxford
• Professor John Ellis, CERN and KCL
• Prof Elaine Howard Ecklund, Director of the Religion and Public Life Program in Rice's Social Sciences Research Institute
• Dr Nikos Rompotis, University of Liverpool
• Dr Kate Shaw, University of Sussex
• Revd Canon Dr Mike Kirby, University of Liverpool
The discussion will be moderated by acclaimed science writer, Dr Michael Brooks.
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Detector ConceptsConvener: Didier Claude Contardo (Centre National de la Recherche Scientifique (FR))
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Noble Liquid Calorimetry for a Future FCC-ee ExperimentSpeaker: Brieuc Francois (CERN)
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Superconducting Detector Magnets for FCC-eeSpeaker: Nikkie Deelen (CERN)
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The preshower and the muon detection system of the IDEA detector for FCC-eeSpeakers: Giulio Mezzadri, Giulio Mezzadri (Universita e INFN, Ferrara (IT))
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Test Beam Results and R&D Programme for a Highly Granular Fibre-Sampling Dual-Readout CalorimeterSpeaker: Gabriella Gaudio (INFN-Pavia)
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09:50
Coffee break
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Detector ConceptsConvener: Martin Aleksa (CERN)
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CALICE overviewSpeaker: Vincent Boudry (LLR – CNRS, École polytechnique, Institut Polytechnique de Paris)
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Semi-Digital Hadronic CalorimeterSpeaker: Imad Laktineh (Centre National de la Recherche Scientifique (FR))
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Combining Dual-Readout Crystals and Fibers in a Hybrid Calorimeter for IDEASpeaker: Marco Toliman Lucchini (Università & INFN, Milano-Bicocca (IT))
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DMAPS for large area FCC trackersSpeaker: Attilio Andreazza (Università degli Studi e INFN Milano (IT))
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Large area curved silicon modules for future trackersSpeaker: Adrian Bevan (Queen Mary University of London (GB))
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A Triplet Track Trigger for FCC-hh & its impact on measuring the Higgs self-couplingSpeaker: Tamasi Kar (Ruprecht Karls Universitaet Heidelberg (DE))
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12:00
Lunch break
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FCC Physics: QCDConvener: Gregory Soyez (IPhT, CEA Saclay)
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Hadronization corrections in event shapesSpeaker: Silvia Ferrario Ravasio (University of Milan - Bicocca)
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Jet energy spectrum and substructure in e+e− collisions at 91.2 GeVSpeaker: Yen-Jie Lee (Massachusetts Inst. of Technology (US))
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Event Generators & Parton ShowersSpeakers: Simon Platzer (University of Graz (AT)), Simon Plätzer (DESY)
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A Robust Measure of Event Isotropy at CollidersSpeaker: Cari Cesarotti (Harvard University)
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Parton structure, forward physics and eA and FCC-ehSpeaker: Krzysztof Piotrzkowski (AGH UST Krakow)
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14:35
Coffee break
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FCC Physics: Precision ElectroweakConvener: Michael Peskin
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KKMCee status and planningSpeaker: Staszek Jadach (Polish Academy of Sciences (PL))
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Path to FCC-ee 0.01% Theoretical Luminosity Precision
Path to FCC-ee 0.01% Theoretical Luminosity Precision with an Eye toward Synergies with Other FCC Precision Theory Requirements and toward Recent Developments
Speakers: Bennie Ward, Bennie Ward (Baylor University (US)) -
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Three-loop elliptic integrals for the Standard Model rho parameterSpeaker: Samuel Abreu (CERN)
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Electroweak pseudo-observables and Z-boson form factors at two-loop accuracySpeaker: Johann Usovitsch (CERN)
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Partonic structure of electronSpeakers: Stefano Frixione (INFN), Stefano Frixione (CERN)
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Machine Detector InterfaceConvener: Philip Nicholas Burrows (University of Oxford (GB))
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FCC-eh accelerator / IR and common hh detectorSpeaker: Kevin Daniel Joel Andre (University of Liverpool (GB))
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IP generated radiation monitor for center-of-mass energy measurementsSpeaker: Andrea Ciarma (CERN)
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Low angle luminosity monitoringSpeaker: Helmut Burkhardt (Albert Ludwigs Universitaet Freiburg (DE))
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MDI design integrationSpeaker: Luigi Pellegrino
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The quadrupole QD0 for the SuperB interaction regionSpeaker: Stefania Farinon (INFN e Universita Genova (IT))
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Status of beam backgrounds in Belle II at SuperKEKBSpeaker: Andrii Natochii (University of Hawaii at Manoa)
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10:30
Coffee break
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SoftwareConvener: Philipp Roloff (CERN)
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Lesson learned when migrating the IDEA drift chamber software to EDM4hepSpeaker: Lia Lavezzi (Universita e INFN Torino (IT))
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Lesson learned when migrating the IDEA DR calo software to DD4hep and to EDM4hepSpeakers: Iacopo Vivarelli (University of Sussex (GB)), Roberto Ferrari (INFN Pavia (IT)), Sang Hyun Ko (Seoul National University (KR))
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12:15
Lunch break
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FCC Physics: Direct BSM searchesConvener: Albert De Roeck (CERN)
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Discovery storiesSpeaker: Tiann Tevong You (Imperial College Sci., Tech. & Med. (GB))
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High-dimensional Anomaly Detection with Radiative Return in e+e− CollisionsSpeaker: Julia Lynne Gonski (Columbia University (US))
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14:15
Coffee break
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FCC Physics: Direct BSM searchesConvener: Jose Valle
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Tera-Zooming in on light (composite) axion-like particlesSpeaker: Giacomo Cacciapaglia
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Systematics in HEPSpeaker: Louis Lyons (Imperial College (GB))
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The FCC global collaboration and international forum: (Restricted to the National Contacts / Invited colleagues)Convener: Gregorio Bernardi (APC Paris CNRS/IN2P3)
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FCC Physics Neutrinos and FlavourConvener: Serguey Petcov
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Majorana vs Dirac Heavy Neutral LeptonsSpeaker: Richard Ruiz (Institute of Nuclear Physics (IFJ) PAN)
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Joint Software, Physics Performance and Detector sessionConvener: Felix Sefkow (Deutsches Elektronen-Synchrotron (DE))
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Status of the FCC-ee LAr calorimeter softwareSpeaker: Brieuc Francois (CERN)
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Next stepsConveners: Joost Vossebeld (University of Liverpool (GB)), Prof. Joost Vossebeld
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ECM calibration and Polarization status and plansSpeakers: Alain Blondel (Universite de Geneve (CH)), Jacqueline Keintzel (CERN)
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Electroweak precision measurements statusSpeaker: Juan Alcaraz Maestre (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT, Madrid))
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MDI status and plansSpeaker: Manuela Boscolo (INFN e Laboratori Nazionali di Frascati (IT))
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14:15
Coffee break
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Next stepsConvener: Maria Chamizo Llatas (Brookhaven National Laboratory (US))
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Mandate for the Software and Computing TeamSpeaker: David Lange (Princeton University (US))
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Physics performance plansSpeakers: Emmanuel Francois Perez (CERN), Patrizia Azzi (INFN Padova (IT))
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Physics Programme plansSpeakers: Frank Simon (Max-Planck-Institut fuer Physik), Matthew Philip Mccullough (CERN)
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Detector concepts plansSpeaker: Mogens Dam (University of Copenhagen (DK))
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