Daniel Reichelt - Jet angularities in quark and gluon jets at the LHC

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• Daniel Reichelt
• Friday 05 May 2023, 16:00-17:00
• Potter Room (B1.19).

If you have a question about this talk, please contact Rene Poncelet.

Zoom: https://maths-cam-ac-uk.zoom.us/j/95336793441?pwd=U2V6aHJ6RllROVBtYy9VZlFnVlhYZz09 Meeting ID: 953 3679 3441 Passcode: 888178

Abstract:Jet angularities are an important class of jet substructure observables investigated at the LHC , with a potential to tag quark and gluon jets in theoretically controlled way. In this talk I will present calculations at NLO +NLL’, in hadronic dijet and Z+jet events. Where applicable, the effect of soft drop grooming is included. Those semi-analytic calculations are also compared to state of the art Monte Carlo predictions using Sherpa at MC@NLO accuracy for both processes. Non-perturbative corrections from the underlying event and hadronisation are applied using parton-to-hadron level transfer matrices extracted from Monte Carlo. I will focus on comparisons of the theoretical predictions against recent measurements from the CMS experiment. Finally, the setup of the calculation allows one to make separate predictions for quark and gluon jets, and I will highlight the relation to quark gluon flavour discrimination.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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