The Evaluation of the Leading Hadronic Contribution to the Muon Anomalous Magnetic Moment

02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)


Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Staudingerweg 9 / 2nd floor, 55128 Mainz

The workshop is focussed on the hadronic contribution to the anomalous magnetic moment of the muon, both analyzing the most recent experimental results for its determination in time-like processes and taking into consideration the most recent dedicated lattice calculations.

In this context, a particular attention and a series of seminars and discussions will be devoted to consider a recently proposed possibility of extracting the muon anomalous magnetic moment by using an alternative method, which exploits experiments where space-like processes are involved, such as the μ-e scattering or Bhabha processes.

The aim is to discuss and to explore in detail the state of the art of precision radiative corrections to μ-e scattering and Bhabha processes in order to master the theoretical tools necessary to develop dedicated Monte Carlo simulation codes.

Finally, part of the discussion will be devoted to survey the experimental challenges for the extraction of the hadronic contribution to the running of the electromagnetic coupling constant in space-like processes.

The foreseeable impact is represented by the possibility of testing the consistency of the Standard Model at the level of quantum corrections with an unprecedented precision as well as the one of ascertain the presence of New Physics virtual effects in a robust (and unambiguous) way.

Executive Summary (PDF)
Participants (PDF)
    • The muon g-2 and the MUonE project
      • 9:00 AM
      • 1
        Status of theoretical predictions of aμ
        Speaker: Marc Knecht (CNRS - CPT, Marseille)
      • 2
        The muon g-2 and α(Mz): the hadronic part
        Speaker: Fred Jegerlehner (Humboldt University Berlin/ DESY Zeuthen)
      • 3
        Review of R-measurements
        Speaker: Simon Eidelman (BINP, Novosibirsk)
      • 4
        The MUonE project
        Speakers: Graziano Venanzoni (INFN), Massimo Passera (INFN, Padova)
      • 12:40 PM
      • 5
        Lattice results for aμ^HLO
        Speaker: Marina Krstic Marinkovic (Trinity College, Dublin)
    • The MUonE experiment
      • 6
        Results from Test Beam
        Speakers: Antonio Principe (Bologna University), Graziano Venanzoni (INFN)
      • 7
        Simulation of Multiple Scattering in GEANT4
        Speaker: Vladimir Ivantchenko (CERN)
    • QED NNLO: Amplitudes & Master Integrals
      • 8
        On the decomposition of 2-loop μe scattering via Adaptive Integrand Decomposition
        Speaker: William Torres Bobadilla (IFC, Valencia)
      • 9
        Automated higher order corrections with GoSam
        Speaker: Nicolas Greiner (Zurich University)
      • 10:30 AM
        Coffee break
      • 10
        Two-loop master integrals for μe-scattering in QED
        Speaker: Amedeo Primo (Padua University)
      • 11
        Building bases for analytical fits of four-loop master integrals
        Speaker: Stefano Laporta (Padua University)
      • 12:30 PM
    • Monte Carlo: Theory
      • 12
        Monte Carlo generators for flavour factories
        Speaker: Henryk Czyz (Inst. of Physics, Univ. of Silesia)
      • 13
        μe at NLO, Calculations and Phenomenology, Towards a MC at NNLO
        Speakers: Dr Carlo Carloni Calame (INFN, Sezione di Pavia), Fulvio Piccinini (INFN, Pavia), Massimo Alacevich (Pavia University)
    • QED NNLO: Amplitudes
      • 14
        Calculations for muon decay at NNLO
        Speakers: Adrian Signer (PSI & Zurich University), Yannick Ulrich (PSI)
      • 15
        Expansion by regions in mu-e scattering
        Speaker: Alessandro Broggio (TUM, Munich)
      • 10:15 AM
        Coffee break
    • The MUonE experiment
      • 16
        Review of M2 Beam at CERN
        Speaker: Johannes Bernhard (CERN)
      • 17
        Review of the experimental apparatus & systematic errors
        Speaker: Umberto Marconi (INFN, Bologna)
      • 12:30 PM
      • 18
        PID at MUonE
        Speaker: Dr Fedor Ignatov (Budker Institute of Nuclear Physics)
      • 19
        Silicon detectors: state of the art and possible options for MUonE
        Speaker: Stefano Mersi (CERN)
      • 3:30 PM
        Coffee break
      • 20
        Tracking setup preparation for test beam 2018
        Speaker: Claudia Brizzolari (Insubria University)
      • 21
        Work plan for 2018
        Speaker: Clara Matteuzzi (INFN, Milano Bicocca)
    • The MUonE experiment: conclusion & outlook
      • 22
        Conclusion & outlook of the experimental session
        Speaker: Graziano Venanzoni (INFN)
      • 10:45 AM
        Coffee break
    • Hadronic corrections & bound states
      • 23
        Hadronic corrections at NNLO
        Speaker: Matteo Fael (Bern University)
      • 24
        Hadronic corrections to g-2 via Schwinger's sum rule
        Speaker: Ms Franziska Hagelstein (Institut für Kernphysik, JGU Mainz)
      • 12:30 PM
      • 25
        Dispersive approach to QCD and its applications
        Speaker: Alexander Nesterenko (JINR, Dubna)
      • 26
        Hadronic effects in muonium hyperfine structure
        Speaker: Savely Karshenboim (MPI of Quantum Optics, Garching)
      • 27
        Tests of QED with the bound electron g-factor
        Speaker: Dr Robert Szafron (TUM)
    • Closing and outlook
      • 28
        Common document discussion, workshop closing and outlook
        Speaker: Prof. Luca Trentadue (Università di Parma INFN Sezione di Milano Bicocca)
      • 1:30 PM