MiniWorkshop: parametric uncertainties: α_em

Thursday 14 Jul 2022, 15:00 → 17:50 Europe/Zurich

Adrian Irles (IFIC CSIC/UV), Andreas Meyer (DESY (DE)), Ayres Freitas, Paolo Azzurri (Universita & INFN Pisa (IT))

The subgroup WG1-PREC “Precision in theory and experiment” is one of the five subgroups of the ECFA Higgs Factory working group WG1 on physics potential. The subgroup addresses very high-precision observables at future e+e- colliders.

This meeting one of a series of mini-workshop meetings. Previous meetings were held in March: high-precision measurements: https://indico.cern.ch/event/1129966/ and parametric uncertainties: α_s https://indico.cern.ch/event/1131344/.

Please subscribe to the ECFA-WHF-WG1-PREC mailing list here: http://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=ecfa-whf-wg1-prec.

The subgroup conveners are available by email at ECFA-WHF-WG1-PREC-conveners@cern.ch

The subgroup WG1-PREC “Precision in theory and experiment” is one of the five subgroups of the ECFA Higgs Factory working group WG1 on physics potential. The subgroup addresses very high-precision observables at future e+e- colliders.

This meeting one of a series of mini-workshop meetings. Previous meetings were held in March: high-precision measurements: https://indico.cern.ch/event/1129966/ and parametric uncertainties: α_s https://indico.cern.ch/event/1131344/.

Please subscribe to the ECFA-WHF-WG1-PREC mailing list here: http://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=ecfa-whf-wg1-prec.

The subgroup conveners are available by email at ECFA-WHF-WG1-PREC-conveners@cern.ch

15:00 → 15:10 Introduction

Speakers: Adrian Irles (IFIC CSIC/UV), Andreas Meyer (DESY (DE)), Ayres Freitas, Paolo Azzurri (Universita & INFN Pisa (IT))

WG1-PREC Introduction 20220714.pdf

15:10 → 15:30 Direct measurement of αQED(mZ) at FCC-ee

Speaker: Patrick Janot (CERN)

DirectAlphaQEDMeasurement.pdf

DirectAlphaQEDMeasurement.pptx

EW_dep_alpha-2022-07-13-ABlondel.pdf

15:40 → 16:00 Determinations of alphaQED(mz) DHMZ approach and future perspectives

Speaker: Bogdan Malaescu (Centre National de la Recherche Scientifique (FR))

DataDrivenHVP_alphaQED_DHMZ.pdf

16:10 → 16:30 Δα_had: the KNT evaluation and the big picture

Speaker: Alex Keshavarzi (University of Manchester)

AKeshavarzi_ECFA-Workshop_14-07-22.pdf

16:40 → 17:00 A critical assessment of ∆α_QCD^had (mZ) and the prospects for improvements

Speakers: Fred Jegerlehner, Fred Jegerlehner (Deutsches Elektronen-Synchrotron DESY)

SMalphaFCCee22.pdf

17:10 → 17:30 Determinations of alphaQED(mz) with Lattice and future perspectives

Speaker: Harvey Meyer (Johannes Gutenberg University Mainz)

meyerh2022-07-14.pdf

17:40 → 17:50 Discussion