CLEW: towards a truly global SMEFT analysis

Speaker: Tom Tong (University of Siegen)

Date: Tuesday May 13, 2025

Time: 4:00 – 5:00 pm

Location: 472 Willamette Hall (IFS Seminar Room)

Abstract:

SMEFT global analyses commonly encounter two major challenges: (1) Incomplete observables and (2) Ad-hoc flavor assumptions. These issues significantly undermine the reliability and applicability of the results.

In this talk, I propose the CLEW framework for a complete global analysis. By integrating both high- and low-energy data, CLEW is able to apply strong phenomenological constraints instead of flavor assumptions to reduce the number of operators involved. Moreover, to aid in model building and guide experimental searches, CLEW utilizes the Akaike Information Criterion to select a group of operators that not only fit well with the data but also avoid unnecessary complexity. Finally, I will introduce the implementation of CLEW within SIMUnet, a machine-learning based tool that fits SMEFT and PDFs simultaneously.

Host: Graham Kribs