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

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

02.430

Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Staudingerweg 9 / 2nd floor, 55128 Mainz
Description

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)
    • 09:00 14:45
      The muon g-2 and the MUonE project
      • 09:00
        Registration 1h
      • 10:00
        Status of theoretical predictions of aμ 40m
        Speaker: Marc Knecht (CNRS - CPT, Marseille)
        Slides
      • 10:40
        The muon g-2 and α(Mz): the hadronic part 40m
        Speaker: Fred Jegerlehner (Humboldt University Berlin/ DESY Zeuthen)
        Slides
      • 11:20
        Review of R-measurements 40m
        Speaker: Simon Eidelman (BINP, Novosibirsk)
        Slides
      • 12:00
        The MUonE project 40m
        Speakers: Graziano Venanzoni (INFN), Massimo Passera (INFN, Padova)
        Slides
      • 12:40
        Lunch 1h 20m
      • 14:00
        Lattice results for aμ^HLO 45m
        Speaker: Marina Krstic Marinkovic (Trinity College, Dublin)
        Slides
    • 14:45 16:15
      The MUonE experiment
      • 14:45
        Results from Test Beam 45m
        Speakers: Antonio Principe (Bologna University), Graziano Venanzoni (INFN)
        Slides
      • 15:30
        Simulation of Multiple Scattering in GEANT4 45m
        Speaker: Vladimir Ivantchenko (CERN)
        Slides
    • 09:00 14:00
      QED NNLO: Amplitudes & Master Integrals
      • 09:00
        On the decomposition of 2-loop μe scattering via Adaptive Integrand Decomposition 45m
        Speaker: William Torres Bobadilla (IFC, Valencia)
        Slides
      • 09:45
        Automated higher order corrections with GoSam 45m
        Speaker: Nicolas Greiner (Zurich University)
        Slides
      • 10:30
        Coffee break 30m
      • 11:00
        Two-loop master integrals for μe-scattering in QED 45m
        Speaker: Amedeo Primo (Padua University)
        Slides
      • 11:45
        Building bases for analytical fits of four-loop master integrals 45m
        Speaker: Stefano Laporta (Padua University)
        Slides
      • 12:30
        Lunch 1h 30m
    • 14:00 16:00
      Monte Carlo: Theory
      • 14:00
        Monte Carlo generators for flavour factories 45m
        Speaker: Henryk Czyz (Inst. of Physics, Univ. of Silesia)
        Slides
      • 14:45
        μe at NLO, Calculations and Phenomenology, Towards a MC at NNLO 1h 15m
        Speakers: Dr Carlo Carloni Calame (INFN, Sezione di Pavia), Fulvio Piccinini (INFN, Pavia), Massimo Alacevich (Pavia University)
    • 09:00 11:00
      QED NNLO: Amplitudes
      • 09:00
        Calculations for muon decay at NNLO 45m
        Speakers: Adrian Signer (PSI & Zurich University), Yannick Ulrich (PSI)
        Slides
      • 09:45
        Expansion by regions in mu-e scattering 30m
        Speaker: Alessandro Broggio (TUM, Munich)
        Slides
      • 10:15
        Coffee break 45m
    • 11:00 17:30
      The MUonE experiment
      • 11:00
        Review of M2 Beam at CERN 45m
        Speaker: Johannes Bernhard (CERN)
        Slides
      • 11:45
        Review of the experimental apparatus & systematic errors 45m
        Speaker: Umberto Marconi (INFN, Bologna)
        Slides
      • 12:30
        Lunch 1h 30m
      • 14:00
        PID at MUonE 45m
        Speaker: Dr Fedor Ignatov (Budker Institute of Nuclear Physics)
        Slides
      • 14:45
        Silicon detectors: state of the art and possible options for MUonE 45m
        Speaker: Stefano Mersi (CERN)
        Slides
      • 15:30
        Coffee break 30m
      • 16:00
        Tracking setup preparation for test beam 2018 45m
        Speaker: Claudia Brizzolari (Insubria University)
        Slides
      • 16:45
        Work plan for 2018 45m
        Speaker: Clara Matteuzzi (INFN, Milano Bicocca)
        Slides
    • 09:00 11:15
      The MUonE experiment: conclusion & outlook
      • 09:00
        Conclusion & outlook of the experimental session 1h 45m
        Speaker: Graziano Venanzoni (INFN)
      • 10:45
        Coffee break 30m
    • 11:15 15:45
      Hadronic corrections & bound states
      • 11:15
        Hadronic corrections at NNLO 45m
        Speaker: Matteo Fael (Bern University)
        Slides
      • 12:00
        Hadronic corrections to g-2 via Schwinger's sum rule 30m
        Speaker: Ms Franziska Hagelstein (Institut für Kernphysik, JGU Mainz)
        Slides
      • 12:30
        Lunch 1h 30m
      • 14:00
        Dispersive approach to QCD and its applications 45m
        Speaker: Alexander Nesterenko (JINR, Dubna)
        Slides
      • 14:45
        Hadronic effects in muonium hyperfine structure 30m
        Speaker: Savely Karshenboim (MPI of Quantum Optics, Garching)
      • 15:15
        Tests of QED with the bound electron g-factor 30m
        Speaker: Dr Robert Szafron (TUM)
        Slides
    • 10:00 15:00
      Closing and outlook
      • 10:00
        Common document discussion, workshop closing and outlook 3h 30m
        Speaker: Prof. Luca Trentadue (Università di Parma INFN Sezione di Milano Bicocca)
        Slides
      • 13:30
        Lunch 1h 30m