activity
20202025
most citedLimits on axion-like particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT

75 citations · 172 across the 19 of their papers we have counts for

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hep-ph2025

Completing Axion Double Level Crossings

Hai-Jun Li, Wei Chao, Huai-Ke Guo +1

In this work, we present the refinement of axion double level crossings within the context of multi-axion mass mixing, specifically focusing on cases where the number of axions exc…

hep-th2025

Axion Mixing in the String Axiverse

Hai-Jun Li, Yu-Feng Zhou

String axiverse provides a fascinating and complex landscape for axion physics. The requirement in type IIB string axiverse models necessitates at least two axions to ensure the pr…