EFT for Soft Drop Double Differential Cross Section

TL;DR

This paper develops a factorization framework for calculating the double differential cross section of soft drop groomed jet mass and radius, providing theoretical predictions and comparisons with simulations.

Contribution

It introduces a novel factorization approach for soft drop observables across different jet radius regimes, including NLL' calculations and hadronization correction analysis.

Findings

NLL' results for perturbative moments of jet observables

Comparison with Monte Carlo simulations shows good agreement

Identification of universal parameters for hadronization corrections

Abstract

We develop a factorization framework to compute the double differential cross section in soft drop groomed jet mass and groomed jet radius. We describe the effective theories in the large, intermediate, and small groomed jet radius regions defined by the interplay of the jet mass and the groomed jet radius measurement. As an application we present the NLL$'$ results for the perturbative moments that are related to the coefficients $C_1$ and $C_2$ that specify the leading hadronization corrections up to three universal parameters. We compare our results with Monte Carlo simulations and a calculation using the coherent branching method.