Conveners
QCD Measurements + Spin Physics
- Andreas Hinzmann (Hamburg University (DE))
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Oleh Fedkevych (INFN - National Institute for Nuclear Physics)04/08/2021, 16:00
We present a phenomenological study of the ungrommed and groomed jet angularities measured in Z+jet production at 13 TeV collision energy. We provide resummed predictions for the angularity distributions at NLO+NLL' accuracy level which are compared to the state-of-the-art NLO Monte Carlo simulations. Our predictions include the effect of soft emissions at large angles, treated as a power...
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Alejandro Gomez Espinosa (ETH Zurich (CH))04/08/2021, 16:15
Jet substructure techniques are increasingly important for LHC searches and measurements alike. QCD multijet final states remain a significant background for these physics analyses but are not well-modeled in Monte Carlo. Jet substructure measurements can probe QCD shower evolution and help improve our understanding and modeling of multijet final states. We present the latest jet substructure...
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Dr Alexander Karlberg (University of Oxford)04/08/2021, 16:30
I present two novel jet observables, based on Lund-declustering, sensitive to the spin-correlations between partons within and between jets respectively (arXiv:2103.16526). I discuss the general structure of these observables for quark and gluon initiated jets at both fixed order and all orders in QCD. For the latter we have extended the MicroJets resummation code and the PanScales showers to...
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Ian James Moult04/08/2021, 16:45
The study of spin effects in QCD has a long history. Precision jet substructure opens new doors for studying these effects. To achieve this goal, one hopes to find a spin-sensitive observable that is also theoretically accessible to perturbative calculation and resummation, which is in general not an easy task.
In this talk, I will show that spin effects are encoded in the shape dependence...
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