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CMS Precision EWK Workshop: Open Symposium on W mass

2–3 Mar 2026
"Le Benedettine" Conference Center, Pisa
Europe/Zurich timezone

Local Organizing Committee

Contribution List

23 out of 23 displayed
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  1. 17. Welcome and Opening by Local Organizers
    Lorenzo Bianchini (Universita & INFN Pisa (IT))
    02/03/2026, 09:20
  2. 1. mW in ATLAS : past results, ongoing work and future projects
    Maarten Boonekamp (Université Paris-Saclay (FR))
    02/03/2026, 09:30
  3. 2. W boson mass measurements with the LHCb experiment
    Mika Anton Vesterinen (University of Warwick (GB))
    02/03/2026, 10:05

    In this talk I will present LHCb’s measurement of the W boson mass using forward W decays in the muon channel, highlighting the unique features of the LHCb approach and its complementarity to ATLAS and CMS. I will discuss the main experimental and theoretical uncertainties and outline prospects for future improvements.

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  4. 3. The CDF W mass measurement and considerations for reanalysis
    Chris Hays (University of Oxford (GB))
    02/03/2026, 11:10

    I will review the CDF W mass measurement, which is a significant outlier with respect to other measurements, while also being the most precise. As such it merits additional scrunity, and I will discuss aspects of the measurement that could be revisited as part of a reanalysis. I will focus largely on the measurement of the charged-particle momentum in the outer tracker, but will also discuss...

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  5. 4. High-precision measurement of the W boson mass with the CMS detector
    Kenneth Long (Massachusetts Inst. of Technology (US))
    02/03/2026, 11:45

    Particle masses and the coupling strengths of the forces are fundamentally experimental parameters that must be measured and input into the standard model of particle physics (SM). While the SM does not predict their values, it does predict precise relationships between them. Physics beyond the standard model can change these relationships, making it of paramount importance to measure these...

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  6. 6. The W-Boson Mass: Current Measurements and World Average
    Andres Pinto (Centre National de la Recherche Scientifique (FR))
    02/03/2026, 14:00
  7. 7. Precision PDFs and their uncertainties
    Thomas Cridge (DESY)
    02/03/2026, 14:35

    PDFs are a critical theoretical input for precision measurements at the LHC, including for electroweak physics and Standard Model parameter determinations, where percent-level accuracy is required to fully exploit LHC data. Key Standard Model parameters determined at the LHC are now fundamentally limited by the PDFs and their uncertainties, from the W boson mass to the weak mixing angle....

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  8. 8. Quark transverse-momentum effects and the W mass
    Prof. Alessandro Bacchetta, Alessandro Bacchetta
    02/03/2026, 15:10

    I will discuss how the nonperturbative components of the quark transverse-momentum distributions (TMDs) can affect the determination of the W mass and emphasize the importance of a taking them into account when quantifying M_W uncertainties.

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  9. 14. Drell-Yan Lepton Pair Production in the High-Precision Era
    Luca Rottoli (Universita & INFN, Milano-Bicocca (IT))
    02/03/2026, 16:15

    The pursuit of high-precision predictions for Drell-Yan processes at hadron colliders has driven substantial theoretical advancements in recent years. Experiments aim for increasingly accurate determinations of Standard Model parameters such as the weak mixing angle, the strong coupling and the W-boson mass. Central to this progress is the incorporation of higher-order QCD and electroweak...

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  10. 15. Higher-Order Event Generators for Precision Electroweak Physics
    Marius Wiesemann (Max Planck Institute for Physics)
    02/03/2026, 16:50

    I will present recent progress in precision simulations for electroweak processes at the LHC, with a focus on event generation at NNLO accuracy matched to parton showers. After reviewing the main theoretical approaches and currently available tools, I will discuss their relevance for electroweak precision studies, in particular for Drell–Yan production. I will also highlight recent...

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  11. 9. Electroweak and Mixed QCD–Electroweak Effects in Precision Drell–Yan Measurements at the LHC
    Luca Buonocore (CERN)
    03/03/2026, 09:00

    Precision measurements of Drell–Yan production at the LHC are essential for extracting electroweak parameters, parton distribution functions, and the strong coupling constant. As experimental uncertainties reach the per-mille level for many normalized observables, theoretical uncertainties become dominant, making subleading radiative effects increasingly relevant. This talk discusses...

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  12. 18. Uncertainties from missing higher orders for precision measurements (ONLINE)
    Rene Poncelet (IFJ PAN Krakow)
    03/03/2026, 09:35

    Precision computations for standard candle processes are a staple of the physics programme at colliders such as the Large Hadron Collider, and the highest precision can be achieved in perturbative computations. In perturbation theory, however, calculations truncated at a fixed (logarithmic) order inevitably have inherent theoretical uncertainty. Traditionally, scale variation has been employed...

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  13. 11. MW and global fits in the SM and beyond
    Luca Silvestrini (INFN, Rome)
    03/03/2026, 10:40

    We briefly review the role of MW in global fits in the SM and in its extensions, including Oblique NP and the SMEFT.

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  14. 10. Lepton collider measurement prospects for mW
    Graham Wilson (The University of Kansas (US))
    03/03/2026, 11:15

    I will discuss some of the measurement techniques for mW that can be
    available at future lepton colliders referring as appropriate to methods
    used already at LEP. Key aspects are related to center-of-mass energy and
    background control, understanding of hadronization, 4-fermion effects,
    and tracker momentum and hadronic mass scales. The utility of longitudinally polarized beams and...

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  15. 12. Looking ahead: ideas and plans for the Summer
    Christoph Paus (Massachusetts Inst. of Technology (US))
    03/03/2026, 11:50
  16. 16. An experimentalist perspective on mW
    Josh Bendavid (CERN)
    03/03/2026, 14:00
  17. 22. A light new physics perspective on mW
    Roberto Franceschini (Rome 3 U.)
    03/03/2026, 15:00
  18. 13. Concluding remarks
    Lorenzo Bianchini (Universita & INFN Pisa (IT))
    03/03/2026, 16:00
  19. 19. Open discussion: the experimental side
    All
  20. 23. Open discussion: the theoretical side
    All
  21. 5. Talk
  22. 21. Welcome from director of INFN Pisa
    Paolo Spagnolo (Universita & INFN Pisa (IT))

    TBC

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  23. 20. Welcome from director of Physics Department of the University of Pisa
    Chiara Roda (Universita & INFN Pisa (IT))