Speaker
Description
Jet angularities are an important class of jet substructure observables
investigated at the LHC. In this talk I will focus the comparison of theoretical
predictions against recent measurements from the CMS experiment [1]. I will
present calculations at NLO+NLL' based on [2, 3], 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, as
introduced in [3]. 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, see also [4].
[1] JHEP 01 (2022) 188 [arXiv:2109.03340]
[2] JHEP 07 (2021) 076 [arXiv:2104.06920]
[3] JHEP 03 (2022) 131 [arXiv:2112.09545]
[4] Eur.Phys.J.C 81 (2021) 9, 844 [arXiv:2108.10024]
