The Evaluation of the Leading Hadronic Contribution to the Muon g-2: Toward the MUonE Experiment

14 Nov 2022, 08:30 → 18 Nov 2022, 16:00 Europe/Berlin

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

The aim of the topical workshop is to assess the state of the art of the theoretical determination of the muon anomalous magnetic moment, aμ , in view of the anticipated new measurement of the E989 Muon g-2 experiment in Fermilab, which is expected to improve the present precision by a factor of four, and the new approach to measure aμ under development by the E34 collaboration at J-PARC. The workshop will focus on aμHLO , the leading hadronic contribution to the muon g-2, both analyzing the most recent experimental and theoretical results for its determination, as well as taking into consideration the most recent dedicated lattice calculations. Particular attention will be devoted to MUonE, a recently proposed experiment at CERN which aims at measuring the running of the electromagnetic coupling constant in the spacelike region by scattering high-energy muons on atomic electrons of a low-Z target through the process μe → μe. The differential cross section of this process provides the direct measurement of aμHLO and, therefore, an independent determination of the theoretical prediction for aμ competitive with the timelike dispersive approach.

Monday 14 November

08:30 → 09:00 Registration

09:00 → 09:10 Intro

Speaker: Luca Trentadue

introduction_Mainz11_2022.pdf

09:10 → 10:30 Muon g-2 status: theory and experiment

09:10 Muon g-2: theory status

Speaker: Marc Knecht

MK_MUonE_Mainz_2022.pdf

09:50 Muon g-2: experimental status

Speaker: Anna Driutti

adriutti_gm2forMainz.pdf

10:30 → 11:00 Coffee break

11:00 → 13:00 Status of the MUonE experiment

11:00 The MUonE experiment: status and news from test runs

Speaker: Umberto Marconi

Mainz-2022November14.pptx

11:40 MUonE analysis strategy

Speaker: Giovanni Abbiendi

Giovanni-Abbiendi-2022.11.14_GAbbiendi_MUonE-Analysis_MAINZ.pdf

12:20 MUonE simultaneous fit of Dalpha_had and systematic effects

Speaker: Riccardo Nunzio Pilato

RiccardoPilato_Mainz.pdf

13:00 → 14:30 Lunch break

Tuesday 15 November

09:00 → 10:30 Monte Carlo and Radiative Corrections

09:00 MUonE theory status

Speaker: Fulvio Piccinini

piccinini.pdf

09:40 The MESMER Monte Carlo and photoic NNLO corrections

Speaker: Ettore Budassi

budassi.pdf

10:05 NNLO pair corrections, pi^0 production

Speaker: Clara Lavinia Del Pio

delpio_muone2022.pdf

10:30 → 11:00 Coffee break

11:00 → 12:20 Multi-loop: NNLO and N3LO

11:00 On the Feynman integrals at two loops and beyond

Speaker: William Torres Bobadilla

TorresBobadilla.pdf

11:40 NNLO QED Virtual corrections for e-mu elastic scattering and related processes

Speaker: Jonathan Ronca

Ronca.pdf

12:20 → 14:00 Lunch break

14:00 → 14:40 Precision physics with muons at PSI

Speaker: Andrea Gurgone

gurgone_muone22.pdf

Wednesday 16 November

09:00 → 10:20 Monte Carlo and Radiative Corrections

09:00 Introduction to McMule

Speaker: Yannick Ulrich

ulrich-mcmule-yu.pdf

09:10 Massification & next-to-soft stabilisation

Speaker: Tim Engel

engel-mcmule-te.pdf

09:40 Subtraction & Results

Speaker: Marco Rocco

rocco-mcmule-mr.pdf

10:20 → 11:00 Coffee break

11:00 → 12:00 Multi-loop: NNLO and N3LO

11:00 Report on the Durham workstop/thinkstart on N3LO

Speaker: Yannick Ulrich

ulrich-n3lo-workstop.pdf

11:20 QED and QCD massive form factor at three loops

Speaker: Matteo Fael

Fael-MUonE_Mainz2022.pdf

12:00 → 13:00 Lunch break

13:00 → 14:00 Colloquium: Status and prospects of the MUonE experiment

This is a general colloquium given by Graziano on our project, as part of the PRISMA+ Cluster of Excellence program

Speaker: Graziano Venanzoni

19:30 → 22:30 Social Dinner at Restaurant Augustinerkeller

Restaurant Augustinerkeller
Augustinerstraße 26, 55116 Mainz

https://goo.gl/maps/GDhgziTP3FdJLup28

Restaurant Augustinerkeller, Augustinerstraße 26, 55116 Mainz

Thursday 17 November

09:00 → 11:00 Spacelike Hadronic VP parameterization

09:00 Hadronic Vacuum Polarization in the Spacelike Region and the MUonE Experiment

Speaker: Gilberto Colangelo

Colangelo.pdf

09:40 The role of Padé approximants as fitting functions in the context of the MuonE experiment

Speaker: Cristiane Yumi London

London.pdf

10:20 Reconstruction Approximants to Hadronic Vacuum Polarization and the MUonE proposal

Speaker: David Greynat

Greynat_22_11_17.pdf

11:00 → 11:30 Coffee break

11:30 → 13:00 Spacelike HNLO and HNLLO contributions to the muon g-2

11:30 NLO HVP contributions to the muon g-2 in the space-like region

Speaker: Elisa Balzani

Balzani_E_Talk_MUONE2022.pdf

12:00 NNLO HVP contributions to the muon g-2 in the space-like region

Speaker: Stefano Laporta

laporta_mainz2022b.pdf

12:30 Spacelike and timelike kernel functions for HVP contribution to the muon anomaly

Speaker: Alexander Nesterenko

nesterenko.pdf

14:00 → 16:10 Lattice and MUonE interplay

14:30 Hadronic Vacuum Polarization on the lattice

Speaker: Davide Giusti

Giusti.pdf

15:10 Lattice and dispersive models input for MUonE analysis

Speaker: Javad Komijani

javad.pdf

15:40 Hadronic running of \alpha_QED from lattice

Speaker: Marco Cè

Cè MUonE MITP.pdf

Friday 18 November

09:00 → 12:00 Open discussion and summary