54 citations · 143 across the 8 of their papers we have counts for
8 papers
One-loop Matching of the Type-III Seesaw Model onto the Standard Model Effective Field Theory
Xu Li, Shun Zhou
In previous works arXiv:2107.12133 and arXiv:2201.05082, we have performed the one-loop matching of both type-I and type-II seesaw models for neutrino masses onto the Standard Mode…
One-loop Matching and Running via On-shell Amplitudes
Xu Li, Shun Zhou
In this work, we put forward a straightforward and simple approach to construct the low-energy effective field theory (EFT) from a given ultraviolet (UV) full theory by integrating…
Seesaw Models of Neutrino Masses on the Convex Cone of Positivity Bounds
Xu Li, Shun Zhou
The convex geometric framework of positivity bounds allows us to explore the ultraviolet (UV) states in new physics models from the bottom up. The UV states in three types of seesa…
Positivity bounds at one-loop level: the Higgs sector
Xu Li
In this paper, we promote the convex cone method of positive bounds from tree level to loop level. This method is general and can be applied to obtain leading positivity boun…
Moments for positivity: using Drell-Yan data to test positivity bounds and reverse-engineer new physics
Xu Li, Ken Mimasu, Kimiko Yamashita +3
Moments of the leptonic angular distribution in the Drell-Yan process have recently been shown to be sensitive probes of a specific class of dimension-8, four-fermion operators in…
Origin of Neutrino Masses on the Convex Cone of Positivity Bounds
Xu Li, Shun Zhou
We exhibit the geometric structure of the convex cone in the linear space of the Wilson coefficients for the dimension-8 operators involving the left-handed lepton doublet and…
One-loop Matching of the Type-II Seesaw Model onto the Standard Model Effective Field Theory
Xu Li, Di Zhang, Shun Zhou
In this paper, we continue to construct the low-energy effective field theories (EFTs) of the canonical seesaw models, which are natural extensions of the Standard Model (SM) to ac…
Positivity in Multi-Field EFTs
Xu Li, Hao Xu, Chengjie Yang +2
We discuss the general method for obtaining full positivity bounds on multi-field effective field theories (EFTs). While the leading order forward positivity bounds are commonly de…