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LoopFest XX

12–14 May 2022
University of Pittsburgh
US/Eastern timezone

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Session

Thursday Afternoon Session 1

12 May 2022, 14:00
Benedum Hall 157 (University of Pittsburgh)

Benedum Hall 157

University of Pittsburgh

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  1. 100. Jets and jet substructure experiment
    Nicholas Smith (FNAL)
    12/05/2022, 14:00
  2. 86. An automated framework to calculate jet and beam functions at NNLO
    Kevin Brune
    12/05/2022, 14:25

    We present a novel formalism to calculate beam and jet functions automatically at next-to-next-to-leading
    order in perturbation theory. By employing suitable phase-space parameterisations in combination with
    sector-decomposition steps and selector functions, we managed to factorise all divergences in the
    phase-space integrations, and we implemented our framework in the publicly available...

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  3. 114. Recent jet substructure calculations and comparison to LHC data
    Felix Ringer
    12/05/2022, 14:43
  4. 82. New insights on strong coupling extractions from Soft Collinear Effective Theory
    Jim Talbert
    12/05/2022, 15:08

    I will discuss the application of Soft Collinear Effective Theory (SCET) to the extraction of the strong coupling constant from e+e- event shape distributions, where state-of-the-art results exhibit a few sigma discrepancy with respect to the PDG world average. After briefly introducing event shape distributions and the SCET resummation formalism we use to study them, I will then focus on the...

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  5. 78. Quark and Gluon Contributions to QCD Trace Anomaly at Four Loops
    Dr Taushif Ahmed (University of Torino)
    12/05/2022, 15:26

    The QCD energy-momentum tensor exhibits the well-known property of trace anomaly. The anomalous contribution can be distributed among the quark and gluon parts. Although the total energy-momentum tensor remains unrenormalized owing to the conservation of energy and momentum, the individual components do go through ultraviolet renormalization. We perform this renormalization at four-loop level....

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  6. 91. Color singlet decays at NNLO QCD with MCFM
    Benoit Assi
    12/05/2022, 15:44

    We present an implementation of the nested soft-collinear subtraction scheme for color singlet decay processes at NNLO. The scheme is of particular utility in the typically poorly convergent subtracted double-real emission corrections. We demonstrate the cancellation of soft and collinear singularities through scaling behaviour analysis. We also discuss possible avenues to parton shower...

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