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Future Colliders for Early-Career Researchers

27 September 2023
CERN
Europe/Zurich timezone

ECFA-ECR Future Colliders Working Group

Contribution List

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  1. 16. Welcome to the event
    Emanuele Angelo Bagnaschi (CERN/INFN Laboratori Nazionali di Frascati)
    27/09/2023, 09:00
  2. 17. Towards the future of particle physics
    Jorgen D'Hondt (Vrije Universiteit Brussel (BE))
    27/09/2023, 09:05

    In person

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  3. 1. The future collider landscape
    Tatsuya Nakada (EPFL - Ecole Polytechnique Federale Lausanne (CH))
    27/09/2023, 09:25

    In-person

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  4. 4. Input from accelerator physicists
    Daniel Schulte (CERN), Dr Tatiana Pieloni (EPFL)
    27/09/2023, 10:30

    In-person

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  5. 5. Detector technologies and challenges
    Mogens Dam (University of Copenhagen (DK)), Nadia Pastrone (Universita e INFN Torino (IT))
    27/09/2023, 11:00

    Remote (Mogens Dam) + in-person (Nadia Pastrone)

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  6. 6. Theory challenges: Precision calculations
    Federico Buccioni
    27/09/2023, 11:30
  7. 36. The Key4hep software stack: Beyond Future Higgs factories
    Leonhard Reichenbach (University of Bonn (DE))
    27/09/2023, 12:00

    The Key4hep project aims to provide a turnkey software solution for the full experiment life-cycle, based on established community tools. Several future collider communities (CEPC, CLIC, EIC, FCC, and ILC) have joined to develop and adapt their workflows to use the common data model EDM4hep and common framework. Besides sharing of existing experiment workflows, one focus of the Key4hep project...

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  8. 34. Beam-induced background simulations for a multi-TeV muon collider
    Daniele Calzolari (CERN)
    27/09/2023, 12:05

    Circular muon colliders offer the exciting potential to collide lepton beams at previously unattained center-of-mass energies. However, a notable technological challenge arises due to the continuous decay of stored muons. This decay introduces significant complexities for both collider and detector design. The secondary radiation fields generated by the decay electrons and positrons can...

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  9. 32. Proposal on the electromagnetic calorimeter for a muon collider
    Carlo Giraldin
    27/09/2023, 12:10

    In the panorama of future colliders, a muon collider represents a very promising choice that would enable a vast physics program. However, the beam-induced background generated from the decay of the muons along the ring is a challenging aspect both from the hardware and the software side. Indeed, despite the presence of a pair of tungsten absorber cones, that mitigate the flux of particles...

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  10. 23. Bottom quark forward-backward asymmetry at the future electron-positron collider FCC-ee
    Leonardo Toffolin (Universita degli Studi di Udine (IT))
    27/09/2023, 12:15

    The Standard Model prediction for the $Z$-boson pole $b$-quark forward-backward asymmetry is calculated to be $(A_{FB}^{0,b})_{th} = 0.1030 \pm 0.0002$. From the experimental point of view, $A_{FB}^b$ as measured by the large electron-positron (LEP) collider at the $Z$-pole is $A_{FB}^{0,b} = 0.0992 \pm 0.0016$, which remains today the electroweak precision observable with the largest...

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  11. 19. Design and Performance of the IDEA Vertex Detector at FCC-ee in Full Simulation and Related R&D on Monolithic Silicon Sensors
    Armin Ilg (University of Zurich)
    27/09/2023, 12:20

    The FCC-ee is a proposed future $e^+e^-$ collider capable of producing an unparalleled number of Higgs, Z, and W bosons, as well as of top quarks, in very clean experimental conditions. Up to four experiments can detect the collision products, with IDEA being one of the proposed detector concepts. A plethora of measurements at the FCC-ee rely on precise and accurate measurements of bottom and...

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  12. 26. Machine Detector Interface for $\sqrt{s} = 3\ TeV$ Muon Collider
    Luca Castelli
    27/09/2023, 12:25

    Muon collisions are considered a promising mean for exploring the energy frontier, leading to a detailed study of the possible feasibility issues. Beam intensities of the order of $10^{12}$ muons per bunch are needed to achieve the necessary luminosity, generating a high flux of secondary and tertiary particles that reach both the machine elements and the detector region. A strategy to reduce...

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  13. 27. Beamstrahlung dump and radiation levels in the experiment IRs
    Alessandro Frasca (University of Liverpool (GB))
    27/09/2023, 12:30

    The Future Circular Collider (FCC) study explores the feasibility of post-LHC colliders with a circumference of almost 100 km. As a first stage, a high-luminosity electron-positron collider (FCC-ee) is envisaged, with a beam energy ranging from 45.6 GeV (Z pole) to 182.5 GeV (ttbar threshold). The most intense radiation source at FCC-ee interaction region (IR) is the production of synchrotron...

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  14. 39. Calorimeter Clustering at FCC-ee with E(n) Equivariant Graph Neural Networks
    Gregor Krzmanc (ETH Zurich)
    27/09/2023, 12:35

    Reconstructing particles from raw detector outputs at the FCC is a challenging task due to complex detector geometries and highly granular, unique shower shapes. Conventional computer vision approaches are typically not suitable for application to the sparse detector outputs, so other methods more suited for unstructured data shall be consulted. We employ E(n) equivariant graph neural networks...

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  15. 38. Beam-induced background simulations in calorimeter at a muon collider
    Shivani Sanjay Lomte (University of Wisconsin Madison (US))
    27/09/2023, 12:40

    A future high energy muon collider can probe the multi-TeV regime and greatly improve our understanding of the Higgs self-coupling. One of the major challenges to detector performance is the beam induced background (BIB) which comes from muon decays along the beam pipe. The upstream and downstream electromagnetic showers blanket the detector with low energy photons, electrons and neutrons....

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  16. 37. Exploring the Hidden Sector with two-particle angular correlations at future e+e- colliders
    Emanuela Musumeci (IFIC - Univ. of Valencia and CSIC (ES))
    27/09/2023, 12:45

    The analysis of the long-range particle correlations can
    yield valuable insights into the initial state of matter and
    potentially reveal the existence of Beyond the Standard Model
    scenarios, such as the "Hidden Valley"(HV) one. In this work, we are
    interested in QCD-like hidden sectors in which the production of HV
    matter would enhance and enlarge azimuthal correlations of...

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  17. 41. Group photo
    27/09/2023, 12:55

    In front of the building

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  18. 7. Software tools for future colliders
    Enrico Bothmann (University of Göttingen)
    27/09/2023, 13:00

    Remote

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  19. 8. Theory perspective
    Anke Biekoetter (JGU Mainz)
    27/09/2023, 13:30

    In person

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  20. 9. View point of low-energy physics
    Giovanni Dal Maso
    27/09/2023, 13:55

    In person

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  21. 10. Cosmic/astro
    Mauro Pieroni (CERN)
    27/09/2023, 14:20

    In person

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  22. 11. Beam dump experiments
    Iaroslava Bezshyiko (University of Zurich (CH))
    27/09/2023, 14:45

    Remote

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  23. 12. Heavy ion (link to EIC)
    Ivan Vorobyev (CERN)
    27/09/2023, 15:10

    In person

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  24. 13. Discussion on time scale impact on ECRs
    Richard Hawkings (CERN)
    27/09/2023, 16:00

    In person

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  25. 14. The View from the Cern Council and ECRs
    Eliezer Rabinovici (Weizmann Institute of Science (IL))
    27/09/2023, 16:35

    In person

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  26. 15. Socio-Economic Impact
    Francesco Giffoni, Massimo Florio
    27/09/2023, 17:05

    Remote

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  27. 3. Sustainability of FCs
    Roberto Losito (CERN)
    27/09/2023, 17:35

    In person

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  28. 24. Future colliders survey: Presentation of first results and live survey
    Emanuele Angelo Bagnaschi (CERN/INFN Laboratori Nazionali di Frascati), Laurent Dufour (CERN), Nima Zardoshti (CERN), Silvia Ferrario Ravasio (CERN)
    27/09/2023, 18:00
  29. 25. Concluding remarks
    Armin Ilg (University of Zurich), Emanuele Angelo Bagnaschi (CERN/INFN Laboratori Nazionali di Frascati), Lydia Brenner (Nikhef National institute for subatomic physics (NL))
    27/09/2023, 18:15
  30. 2. Comparison between different FCs