QCD resummation for groomed jet observables at NNLL+NLO

Mrinal Dasgupta, Basem Kamal El-Menoufi, Jack Helliwell

We use a direct QCD approach to carry out the next-to-next-to-leading logarithmic (NNLL) resummation for observables groomed with the modified mass-drop tagger (Soft Drop $\beta =0$). W…