Name: alphas-2025: Workshop on precision measurements of the QCD coupling constant
Start: 2025-12-14T18:00:00+01:00
End: 2025-12-19T14:00:00+01:00
Location: No location set

alphas-2025: Workshop on precision measurements of the QCD coupling constant

from Sunday 14 December 2025 (18:00) to Friday 19 December 2025 (14:00)

Monday 8 December 2025
Tuesday 9 December 2025
Wednesday 10 December 2025
Thursday 11 December 2025
Friday 12 December 2025
Saturday 13 December 2025
Sunday 14 December 2025

19:00 Dinner
Dinner
19:00 - 21:30

Monday 15 December 2025

08:45 Welcome/Introduction
Welcome/Introduction
08:45 - 09:00
09:00
09:00 - 10:00
Contributions

09:00 alphas from LatticeQCD - Alberto Ramos Martinez (Univ. of Valencia and CSIC (ES))

09:30 FLAG update (to be confirmed) - Stefan Sint (Trinity College Dublin)
10:00 Coffee break
Coffee break
10:00 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 Strong coupling constant from the static energy - Alexei Bazavov (Michigan State University)

11:00 A precise $alpha_s$ determination from the R-improved QCD Static Energy - José Manuel Mena Valle (Universidad de Salamanca)

11:30 Discussion: alpha_s from lattice QCD
12:00 Lunch and free afternoon (ski)
Lunch and free afternoon (ski)
12:00 - 17:00
17:00
17:00 - 17:30
Contributions

17:00 Determination of the quark masses and the strong coupling from global fits to quarkonium at N3LO - VICENT Mateu (University of Salamanca)
17:30
17:30 - 19:00
Contributions

17:30 A Determination of alphas( mZ ) at aN3LO_QCD ⊗NLO_QED Accuracy from a Global PDF Analysis - Emanuele Roberto Nocera Emanuele Roberto Nocera (Università degli Studi di Torino and INFN Torino) Juan Rojo Chacon (Nikhef National institute for subatomic physics (NL))

18:00 MSHT Approximate N3LO Determination of the Strong Coupling Constant (Updates) - Thomas Cridge

18:30 alpha_s from the CT25 global PDF fit - Joey Huston (Department of Physics and Astronomy) Joey Huston (Michigan State University (US)) Kirtimaan Ajaykant Mohan Pavel Nadolsky (Michigan State University)
19:00 Dinner
Dinner
19:00 - 20:30
Tuesday 16 December 2025
09:00
09:00 - 10:00
Contributions

09:00 Complete 3-loop heavy-flavor corrections for unpolarized & polarized structure functions - Johannes Bluemlein

09:30 alpha_s from DY and top quark data at hadron colliders - Sven-Olaf Moch (Hamburg University (DE)) Sven-Olaf Moch
10:00 Coffee break
Coffee break
10:00 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 alpha_s at EIC - Zuhal Seyma Demiroglu (Stony Brook University)

11:00 αs from large-x DIS resummation - Анатолий Котиков

11:30 alpha_s measurement prospects at the EIC and JLab@22 - Alexandre Deur (Jefferson Lab)
12:00 Lunch / Ski
Lunch / Ski
12:00 - 17:00
17:00
17:00 - 19:00
Contributions

17:00 Determination of the strong coupling and its running from measurements of inclusive jet production at CMS - Valentina Guglielmi (University of Zurich (CH))

17:30 CMS extractions of the strong coupling constant: Status and plans - Patrick Louis S Connor (CERN)

18:00 Recent ATLAS determinations of the strong coupling constant - Claudia Glasman (Universidad Autonoma de Madrid (ES))

18:30 Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range - Klaus Rabbertz (KIT - Karlsruhe Institute of Technology (DE))
19:00 Dinner
Dinner
19:00 - 20:30
Wednesday 17 December 2025
09:00
09:00 - 10:00
Contributions

09:00 Towards a precise determination of $\alpha_s$ from the Z boson $q_T$ spectrum - Giulia Marinelli

09:30 Impact of higher-order theory uncertainties on alpha_s extractions at the LHC - Rene Poncelet (IFJ PAN Krakow)
10:00 Coffee break
Coffee break
10:00 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 alpha_s from event shapes - Paolo Nason

11:00 Alphas from Precision e+e- Event Shapes - Iain Stewart

11:30 \alpha_S determination from thrust distribution at N3LL+NNLO in QCD - Giancarlo Ferrera (University of Milan)
12:00 Lunch / Ski
Lunch / Ski
12:00 - 17:00
17:00
17:00 - 19:00
Contributions

17:00 Summary of the CERN workshop on alpha_s and thrust - Gherardo Vita Pier Francesco Monni (CERN)

17:30 Measurements of Hadronic Final States in Archived LEP Data - Anthony Badea (University of Chicago (US))

18:00 Sudakov Shoulder Factorization For Event Shapes - Arindam Bhattacharya

18:30 Improve alpha_s extraction from heavy jet mass data - Xiaoyuan Zhang (MIT)
19:00 Dinner
Dinner
19:00 - 20:30
Thursday 18 December 2025
08:30
08:30 - 10:00
Contributions

09:00 Track energy-energy correlators as precision probes of the strong coupling - Yibei Li

09:30 alpha_s from EEC confinement plateau - Hao Chen (MIT)
10:00 Coffee break
Coffee break
10:00 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 Towards an alpha_s extraction from track-based energy correlators at LEP - Wouter Waalewijn (University of Amsterdam)

11:00 Discussion: alpha_S from e+e- hadronic final states - Pier Francesco Monni (CERN)
12:00 Lunch / Ski
Lunch / Ski
12:00 - 17:00
17:00
17:00 - 18:00
Contributions

17:00 Determination of the strong coupling from tau decays: current status - Antonio Pich (IFIC, University of Valencia - CSIC)

17:30 $\alpha_s$ from $\tau$ decays including $\tau\to2\pi\nu_\tau$ from Belle - Diogo Boito (University of Sao Paulo)
18:00
18:00 - 19:00
Contributions

18:00 Comparison between approaches to the determination of alpha_s from hadronic tau decays - Santi Peris

18:30 Higher-order hadronic vacuum polarization contributions to the muon anomalous magnetic moment - Alexander Nesterenko (JINR)
19:00 Dinner
Dinner
19:00 - 20:30
Friday 19 December 2025

09:00

09:00 - 10:00

10:00 Coffee / Tea break
Coffee / Tea break
10:00 - 10:30
10:30 alpha_s world average determination - Giulia Zanderighi (Max Planck Society (DE)) Joey Huston (Department of Physics and Astronomy) Joey Huston (Michigan State University (US)) Klaus Rabbertz (KIT - Karlsruhe Institute of Technology (DE)) Giulia Zanderighi (CERN)
alpha_s world average determination
- Giulia Zanderighi (Max Planck Society (DE))
- Joey Huston (Department of Physics and Astronomy)
- Joey Huston (Michigan State University (US))
- Klaus Rabbertz (KIT - Karlsruhe Institute of Technology (DE))
- Giulia Zanderighi (CERN)
10:30 - 11:00
11:00 alpha_s world average: Discussion - Giulia Zanderighi (Max Planck Society (DE)) Giulia Zanderighi (CERN)
alpha_s world average: Discussion
- Giulia Zanderighi (Max Planck Society (DE))
- Giulia Zanderighi (CERN)
11:00 - 12:00

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