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Strong coupling from thrust at lepton colliders

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4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
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Alexander Yohei Huss (CERN), Gherardo Vita, Pier Francesco Monni (CERN)
Description

The determination of the strong coupling constant from event-shape observables remains a central topic in precision QCD. 

Among these observables, thrust has long played a central role: it is comparatively simple, well studied, and continues to serve as a benchmark for precision determinations of the strong coupling constant.

This dedicated workshop is intended as the first in a series of focused meetings aimed at addressing the key open questions in α_s determinations from thrust.

This November meeting will focus on the following aspects:

  • Impact of the choice of resummation space

  • Data systematic uncertainties and the recent ALEPH data reanalysis

  • Hadron mass effects and mass schemes

  • Impact of 3-jet power corrections

 

The workshop’s format will consist of short technical introductions followed by extended time for discussion. 
The emphasis is on interaction and collaborative problem-solving rather than on formal presentations.

TH workshop secretariat
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Participants
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  • Thu, November 27
    • 9:00 AM → 9:30 AM
      Coffee 4/2-011 - TH common room

      4/2-011 - TH common room

      CERN

      15
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    • 9:50 AM → 10:00 AM
      Welcome 4/S-030

      4/S-030

      CERN

      30
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      Conveners: Alexander Yohei Huss (CERN), Gherardo Vita, Pier Francesco Monni (CERN)
      Strong coupling from thrust - Welcome.pdf
    • 10:00 AM → 12:00 PM
      Impact of 3-jet power corrections 4/S-030

      4/S-030

      CERN

      30
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      • 10:00 AM
        Talk by Giulia Zanderighi/Paolo Nason 15m
        Speaker: Giulia Zanderighi (Max Planck Inst. for Gravitationsph Albert Eisntein Institute (DE))
        CernAlphas2025.pdf
      • 10:15 AM
        Talk by Vicent Mateu 15m
        Speaker: Vicent Mateu (University of Salamanca)
        Mateu3-jet.pdf
      • 10:30 AM
        Discussion 1h 30m
    • 2:00 PM → 4:00 PM
      Hadron-mass effects: Hadron-mass effects and universality aspects of power corrections across observables 4/S-030

      4/S-030

      CERN

      30
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      • 2:00 PM
        Talk by Iain Stewart 15m
        Speaker: Iain Stewart (MIT)
        Stewart_Had-Masses.pdf
      • 2:15 PM
        Talk by Giulia Zanderighi/Paolo Nason 15m
        Speaker: Giulia Zanderighi (Max Planck Inst. for Gravitationsph Albert Eisntein Institute (DE))
        CERN-27-2025.pdf
      • 2:30 PM
        Discussion 1h 30m
    • 3:30 PM → 4:00 PM
      Coffee 4/2-011 - TH common room

      4/2-011 - TH common room

      CERN

      15
      Show room on map
    • 4:00 PM → 6:00 PM
      Experimental measurements and new analyses of LEP data 4/S-030

      4/S-030

      CERN

      30
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    • 6:00 PM → 7:00 PM
      Reception
  • Fri, November 28
    • 9:00 AM → 9:30 AM
      Coffee 4/2-011 - TH common room

      4/2-011 - TH common room

      CERN

      15
      Show room on map
    • 9:30 AM → 12:00 PM
      Impact of resummation space choice 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
    • 1:30 PM → 3:00 PM
      Impact of resummation space choice 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      • 1:30 PM
        Discussion 1h 30m
    • 3:00 PM → 3:30 PM
      Coffee 4/2-011 - TH common room

      4/2-011 - TH common room

      CERN

      15
      Show room on map
    • 3:30 PM → 5:00 PM
      Organisation and next steps 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
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