Effective Lagrangian Morphing

TL;DR

This paper presents a sophisticated method for constructing multidimensional parametric models of new physics using effective Lagrangians, aiding precise interpretation of LHC measurements within the effective field theory framework.

Contribution

It introduces a state-of-the-art approach for building multidimensional parametric models with effective Lagrangians and provides associated toolkit documentation for the ROOT framework.

Findings

Enhanced modeling of new physics parameters

Integration with ROOT toolkit for practical analysis

Improved accuracy in effective field theory interpretations

Abstract

With the LHC entering the precision era, focus on interpreting the measurements performed in an effective field theory holds key to testing the Standard Model. An effective field theory provides a well-defined theoretical formalism which extends the Standard Model by introduce new terms with free coefficients that can be measured with experimental data. Constructing models parametric in these new coefficients is achieved by virtue of combining predictions from Monte Carlo generators for different interactions. This paper builds upon earlier works and describes a state-of-the-art approach to build multidimensional parametric models for new physics using effective Lagrangians. Documentation and tutorials for an associated toolkit that have been contributed to the ROOT data analysis software framework is included.