SFITTER: SUSY Parameter Analysis at LHC and LC

TL;DR

SFITTER is a novel analysis tool that combines collider measurements from LHC and LC to determine supersymmetric parameters, highlighting the importance of a model-independent approach to explore the MSSM Lagrangian.

Contribution

The paper introduces SFITTER, a new tool for analyzing supersymmetric parameters using combined collider data, emphasizing a move towards unconstrained MSSM parameter fitting.

Findings

Different colliders probe distinct MSSM sectors

Combined fits improve parameter determination

Moving to a model-independent analysis is beneficial

Abstract

SFITTER is a new analysis tool to determine supersymmetric model parameters from collider measurements. Using the set of supersymmetric mass measurements at the LC and at the LHC we show how both colliders probe different sectors of the MSSM Lagrangian. This observation is a strong motivation to move from a parameter fit assuming a certain model to the unconstrained weak-scale MSSM Lagrangian. We argue how the technical challenges can be dealt with in a combined fit/grid approach with full correlations.