2016/06/30 by M. Bjørn, Mikkel Bjørn, Michael Trott · 1 citation
Mathematics · Physics and Astronomy · #Computer science #Consistency (knowledge bases) #Effective field theory #Geometry #High-Energy Particle Collisions Research #Inference #Large Hadron Collider #Mathematics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Standard Model (mathematical formulation) #Statistical physics #Tevatron #hep-ph
paper · pdf · doi:10.1016/j.physletb.2016.10.003
6pp, 4 figures V2: minor typo corrections and text clarifications, matches journal version
arxiv created 2016/09/30 · arxiv updated 2016/10/07 · openalex publication_date 2016/10/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Measurements of the W± mass (mW) provide an important consistency check of the Standard Model (SM) and constrain the possibility of physics beyond the SM. Precision measurements of mW at hadron colliders are inferred from kinematic distributions of transverse variables. We examine how this inference is modified when considering the presence of physics beyond the SM expressed in terms of local contact operators. We show that Tevatron measurements of mW using transverse variables are transparent and applicable as consistent constraints in the Standard Model Effective Field Theory (SMEFT) with small measurement bias. This means that the leading challenge to interpreting these measurements in the SMEFT is the pure theoretical uncertainty in how these measurements are mapped to Lagrangian parameters. We stress the need to avoid using naive combinations of Tevatron and LEPII measurements of mW without the introduction of any SMEFT theoretical error to avoid implicit UV assumptions.