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9th Plenary Workshop of the Muon g-2 Theory Initiative

Aug 3 – 7, 2026
Department of Physics, University of Connecticut
America/New_York timezone

Session

MC, radiative corrections

Aug 3, 2026, 2:20 PM
GS117 and GS119 (Department of Physics, University of Connecticut)

GS117 and GS119

Department of Physics, University of Connecticut

196A Auditorium Rd Unit 3046, Storrs, CT 06269

Conveners

MC, radiative corrections

  • Maarten Golterman (San Francisco State University)

MC, radiative corrections

  • Carleton DeTar (University of Utah)

Presentation materials

There are no materials yet.

  1. 47. Overview on radiative corrections and Monte Carlo codes: an update on the RadioMonteCarlow2 activities
    Fulvio Piccinini (INFN Pavia and GGI Arcetri)
    8/3/26, 2:20 PM

    The development of precise event generators for $e^+$ $e^-$ colliders
    and a thorough assessment of the uncertainties associated with the
    Monte Carlo simulations are the essential ingredients for sound estimates
    of the muon anomalous magnetic moment with the data-driven approach.
    A general overview of the RadioMonteCarLow 2 effort is presented with an
    update on recent developments.

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  2. 39. McMule update
    Sophie Kollatzsch (PSI / UZH)
    8/3/26, 2:50 PM

    With McMule, fully differential predictions for the radiative process $e^+e^-\to\mu^+\mu^-\gamma$ including NNLO initial-state corrections are now available.

    Furthermore, we also calculate $e^+e^-\to\pi^+\pi^-\gamma$ at NLO by applying form-factor scalar QED wherever it is physically justified. By considering additional contributions, we gain insights into the associated theory...

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  3. 36. High-precision Monte Carlo predictions for radiative return with BabaYaga@NLO
    Marco Ghilardi (University of Pavia-INFN Section of Pavia)
    8/3/26, 3:45 PM

    To resolve the tension between lattice QCD and data-driven evaluations of the hadronic
    vacuum polarization contribution to the muon anomaly $a_\mu$, precise cross-section measurements
    of the dominant $\pi^+\pi^-$ channel are highly relevant. The radiative return process
    $e^+e^- \to \pi^+\pi^-\gamma$ at flavor factories is essential for extracting this
    cross section below...

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  4. 43. Phokhara beyond NLO -- an update
    William Torres Bobadilla (University of Liverpool)
    8/3/26, 4:15 PM

    In this talk, we present recent progress in extending PHOKHARA beyond NLO precision. First, we report new results for the pion-pair channel, incorporating the Generalised Vector Dominance Model as an improvement over the usual point-like treatment of pions. We then present the implementation of soft-photon resummation and discuss ongoing work on additional next-to-next-to-leading-order (NNLO)...

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  5. 48. Phokhara update
    William Torres Bobadilla (University of Liverpool)
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