[NTU String Seminar] Positivity, narrow resonances, and linear Regge trajectories

• Event Date: 2025-11-28
• Chen, Jhan Yu 陳詹喻
• High Energy Physics and Astrophysics High energy theory
• Speaker: Sara Ricossa (National Taiwan University)  /  Host: Prof. Pei-Ming Ho
  Place: Rm. 815, Dept. of Physics, NTU

Title: [NTU String Seminar] Positivity, narrow resonances, and linear Regge trajectories
Speaker: Sara Ricossa (National Taiwan University) 
Time: 2025/11/28 (Fri.) 14:30
Place: Rm. 815, Dept. of Physics, NTU
 

Abstract

I will discuss the use of dispersion relations and positivity for bounding the Wilson coefficients of Effective Field Theories (EFT). I will then show how these bounds can be used to narrow down the spectrum of resonances in a UV completion of a given EFT, showing signs of the emergence of towers of higher spinning states, and linear Regge trajectories.