Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+e^-$ collisions

Name: Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^+e^-$ collisions
Start: 2023-06-07T14:00:00+02:00
End: 2023-06-09T18:00:00+02:00
Location: University of Zurich

7 Jun 2023, 14:00 → 9 Jun 2023, 18:00 Europe/Zurich

KOL-F-101 (University of Zurich)

KOL-F-101

University of Zurich

Adrian Signer (PSI - Paul Scherrer Institut), Yannick Ulrich (University of Durham), Andrzej Kupsc, Graziano Venanzoni (University of Liverpool)

Description

This hybrid conference acts as a satellite event to the 5^th workstop/thinkstart and aims to collect some community input and form new collaboration.

Participants

64 View full list

Wednesday 7 June
- Introduction and overview
  - 1
    
    Overview $g-2$
    
    Speaker: Martin Hoferichter (Unversity of Bern)
    
    Talk_hoferichter.pdf
  - 2
    
    Workstop/thinkstart activities: towards a NNLO MC generator for low-energy $e^+e^-\to$ hadrons
    
    Speaker: Graziano Venanzoni (University of Liverpool)
    
    gv_zurich_070623.pdf
- 15:30
  
  Coffee break
- Experiments
  - 3
    
    Experimental overview
    
    Speaker: Anna Driutti (University and INFN Pisa)
    
    Experiments_Zurich.pdf
  - 4
    
    Feasibility Studies for an Inclusive $R$-Measurement using ISR with BESIII
    
    Speaker: Thomas Lenz (JGU Mainz)
    
    Lenz_R_incl_ISR_BESIII.pdf
  - 5
    
    CMD-3
    
    Speaker: Fedor Ignatov (University of Liverpool)
    
    pipiFinal_7June2023_ZurichRadcorMC.pdf
Thursday 8 June
- Hadrons
  - 6
    
    Status of dispersive approach
    
    Speaker: Prof. Thomas Teubner (University of Liverpool)
    
    tteubner_Zurich_June2023.pdf
  - 7
    
    Lattice overview
    
    Speaker: Letizia Parato (ETH Zurich)
    
    uzh_parato.pdf
- 15:30
  
  Coffee break
- Hadrons
  - 8
    
    WP3: Processes with hadrons
    
    Speaker: Peter Stoffer (UZH and PSI)
    
    Summary-WP3.pdf
- Loops in QED
  - 9
    
    WP1: leptonic processes at NNLO & beyond
    
    Speaker: William Torres Bobadilla (Max-Planck-Institut für Physik)
    
    Zurich2_2023.pdf
  - 10
    
    WP2: Form factor contributions at N$^3$LO
    
    Speaker: Tim Engel (Uni Freiburg)
    
    conference_WP2_summary.pdf
  - 11
    
    $e^+e^-\to\gamma\gamma^*$ at two loops in massless QED
    
    We present an analytic computation of $e^+e^-\to\gamma\gamma^*$ at two loops in massless QED. We reconstruct the analytic form of the amplitudes from numerical evaluations over finite fields. We express the integrals in a basis of Goncharov polylogarithms to obtain compact expressions. These contributions are required for N$^3$LO predictions of the inclusive process $e^+e^-\to\gamma^*$ and for NNLO corrections for ISR measurements of $e^+e^-\to\gamma\gamma^*$.
    
    Speaker: Ryan Moodie (Turin University)
    
    slides.pdf
Friday 9 June
- Parton showers
  - 12
    
    WP4: parton shower
    
    Speaker: Carlo Carloni Calame (INFN, Pavia (IT))
    
    ccarlonicalame.pdf
  - 13
    
    Photon splitting corrections to soft-photon resummation
    
    In this talk I will motivate the importance of including QED corrections in a systematic and automated manner. I will present an algorithm to add photon-splitting corrections to the Yennie-Frautschi-Suura-style soft-photon resummation available in the Sherpa Monte-Carlo event generator. Then, I will introduce different lepton dressing strategies which incorporate further leptons and hadrons in addition to the customary photons, and discuss their sensitivity to dressing parameters such as the cone size. I will then present some results for academic and realistic setups.
    
    Speaker: Lois Flower (Durham University)
    
    Workstop_Zurich_2023-v2.pdf
- MUonE
  - 14
    
    Experimental MUonE
    
    Speakers: Giovanni Abbiendi (INFN Bologna), Giovanni Abbiendi (INFN Bologna)
    
    2023.06.09_GAbbiendi_MUonE_Strong2020-ZH.pdf
  - 15
    
    Lattice MUonE
    
    Speaker: Javad Komijani (ETH Zurich)
    
    Jkomijani_MUonE.pdf
  - 16
    
    Theoretical MUonE
    
    Speaker: Marco Rocco (PSI - Paul Scherrer Institut)
    
    mr-strong2020.pdf
- 17
  
  Closing remarks and drinks