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PSR21 - Parton Showers and Resummation

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Description

 

 

 

 

 

 

 

Note, due to the ongoing COVID-19 situation the PSR21 conference will be organised as an online meeting. We hope to have a face-to-face workshop in 2022 again.

 

The 2021 annual workshop on Parton Showers and Resummation will be held online, during May 25-27, 2021. It is organised jointly by the Institute for Theoretical Physics, University of Göttingen, and the IPPP Durham. The workshop brings together researchers interested in Monte Carlo generators and in particular parton showers, resummation techniques and QCD phenomenology, to present and discuss the latest developments and applications.

The workshop is free of registration fees. All talks will be given via zoom, the link to the meeting is:

https://uni-goettingen.zoom.us/j/94256085967?pwd=SGNialkzY1lMeU0veHk1R0NBcnYrZz09

When asked for the passcode, enter: 548446
 
 
 
 
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Participants
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  • Tuesday 25 May
    • 13:45 → 14:00
      Welcome note 15m
    • 14:00 → 15:30
      Talks: MC & Resummation overviews
      • 14:00
        MC generator overview 45m
        Speakers: Stefan Prestel (Fermi National Accelerator Laboratory), Stefan Prestel, Stefan Prestel, Stefan Prestel (Fermi National Accelerator Laboratory), Stefan Prestel
        talk20210525.pdf
      • 14:45
        Resummation overview 45m
        Speaker: Dr Andrea Banfi (University of Sussex)
        banfi_PSR21.pdf
        banfi_PSR21.pdf
        banfi_PSR21.pptx
    • 15:30 → 15:45
      Break 15m
    • 15:45 → 16:45
      Talks: Jet Substructure
      • 15:45
        Jet Substructure overview 30m
        Speaker: Andrew Larkoski (Reed Collge)
        PSR2021_Larkoski.pdf
      • 16:15
        Groomed jet mass as a direct probe of collinear parton dynamics 15m
        Speaker: Basem El-Menoufi (The university of Manchester)
        El-Menoufi_PSR21.pdf
      • 16:30
        Dynamical grooming 15m
        Speaker: Alba Soto Ontoso (IPhT)
        psr_aso.pdf
    • 16:45 → 17:00
      Break 15m
    • 17:00 → 18:35
      Talks: Resummation
      • 17:00
        Semi-analytic resummation in the Sherpa framework 15m
        Speaker: Daniel Reichelt
        PSR2021_DReichelt.pdf
      • 17:15
        Next-to-leading non-global logarithms in QCD 15m
        Speaker: Pier Francesco Monni (CERN)
        NGLs.pdf
      • 17:30
        Non-global Logarithms Beyond Leading Colour 15m
        Speaker: Chang Wu (Università di Genova & INFN Genova)
        PSR21-Chang.pdf
      • 17:45
        Interplay between perturbative and non-perturbative effects with the ARES method 15m
        Speaker: Ryan Wood (University of Sussex)
        PSR 2021 - Ryan Wood.pdf
  • Wednesday 26 May
    • 14:00 → 15:25
      Talks: Parton Showers
      • 14:00
        Electroweak corrections and multijet merging 20m
        Speaker: Enrico Bothmann (University of Göttingen)
        PSR2021_Enrico_Bothmann.pdf
      • 14:20
        The PanScale shower approach 20m
        Speaker: Pier Francesco Monni (CERN)
        PSR_2021.pdf
      • 14:40
        Boosted Higgs Production in Vector Boson Fusion 15m
        Speaker: Silvia Ferrario Ravasio (University of Oxford)
        PSR21_ferrario.pdf
      • 14:55
        Parton-Shower Effects in Higgs Production via Vector-Boson Fusion 15m
        Speaker: Johannes Scheller (Eberhard Karls Universität Tübingen)
        Talk_PSR_Scheller.pdf
      • 15:10
        Spin correlations in the PanScales parton showers and jet observables 15m
        Speaker: Rob Verheyen
        PSR_Spin.pdf
    • 15:25 → 15:40
      Break 15m
    • 15:40 → 16:55
      Talks: Parton shower accuracy
      • 15:40
        Sector showers with fixed-order corrections 20m
        Speaker: Christian Preuss (Monash University)
        psr_ctp.pdf
      • 16:00
        Subleading colour effects in the PanScales parton showers and beyond 15m

        It is known that standard dipole showers yield incorrect subleading-colour contributions already at leading-logarithmic level for certain observables. In this talk, I will present two new, simple prescriptions to palliate this issue. I will show how the resulting colour-corrected matrix elements are cured at fixed order in the appropriate limits. I will then demonstrate how the two algorithms allow us to achieve full-colour next-to-leading logarithmic accuracy for various observables (global observables and multiplicities). I will conclude by commenting on the comparison to full-colour NLL-resummed results for non-global observables.

        Speaker: Ludovic Scyboz (University of Oxford)
        LudovicScyboz_PSR2021_colour.pdf
      • 16:15
        Improved dipole showers 20m
        Speaker: Simon Platzer (University of Vienna (AT))
      • 16:35
        Subleading effect in parton showers 20m
        Speaker: Davison Soper (University of Oregon)
        PSR21.pdf
        PSR21.pdf
    • 16:55 → 17:10
      Break 15m
    • 17:10 → 18:30
      Discussion PS accuracy 1h 20m
  • Thursday 27 May
    • 14:00 → 15:30
      Talks: Higher orders and resummation
      • 14:00
        The Geneva framework 20m
        Speaker: Matthew Lim (Universita' di Milano-Bicocca)
        PSR21_Lim_Geneva.pdf
      • 14:20
        qT subtraction/resummation at N3LO/N3LL 20m
        Speaker: Leandro Cieri (INFN)
        PSR21_Leandro_Cieri.pdf
      • 14:40
        Transverse momentum resummation on the azimuthal spectra of the final leptons in the Drell-Yan processes 15m
        Speaker: Wanli Ju (Durham University)
        WanliJu_PSR2021.pdf
      • 14:55
        Fiducial Higgs and Drell-Yan distributions at N3LL'+NNLO with RadISH 15m
        Speaker: Dr Luca Rottoli (Universitaet Zuerich (CH))
        rottoli_talk_PSR_2021.pdf
      • 15:10
        Azimuthal decorrelation in V+jet production with the WTA axis 15m
        Speaker: Rudi Rahn (Universiteit van Amsterdam)
        PSR_Rahn.pdf
      • 15:25
        y23 at NLL with PanScales 5m
        Speaker: Gregory Soyez (IPhT, CEA Saclay)
        y23-nll-panscales.pdf
    • 15:30 → 15:40
      Break 10m
    • 15:40 → 16:45
      Talks: TMDs and resummation
      • 15:40
        kT factorisation and TMDs 20m
        Speaker: Andreas van Hameren (IFJ PAN)
        vanHameren.pdf
      • 16:00
        The parton branching method for TMDs in Monte Carlo calculations 15m
        Speaker: Mees van Kampen (University of Antwerp)
        PSR21_vanKampen.pdf
      • 16:15
        Quenching effects in the jet spectrum at various cone sizes 15m
        Speaker: Adam Takacs (University of Bergen)
        Adam_Takacs_PSR_2021.pdf
      • 16:30
        Automating the calculation of jet and beam functions 15m
        Speaker: Goutam Das (University of Siegen)
        Das_PSR21.pdf
    • 16:45 → 16:55
      Break 10m
    • 16:55 → 17:55
      Talks: Resummation
      • 16:55
        Evolution of Track functions at order alpha_s^2 15m
        Speaker: Solange Schrijnder van Velzen
      • 17:10
        Next-to-leading power two-loop soft functions for the Drell-Yan process at threshold 15m
        Speaker: Mr Sebastian Jaskiewicz (Technical University of Munich)
        psr21_jaskiewicz.pdf
      • 17:25
        NLP resummation and the endpoint divergent contribution in DIS 15m
        Speaker: Leonardo Vernazza (INFN, Torino)
        PSR-2021.pdf
      • 17:40
        The role of NLP threshold corrections in dQCD and SCET 15m
        Speaker: Melissa van Beekveld
        psr_mei2021_beekveld.pdf
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