activity
20232025
most citedMajorana Majoron and the Baryon Asymmetry of the Universe

3 citations · 3 across the 5 of their papers we have counts for

collaborators

6 papers

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-ph2024

Axion effects on gamma-ray spectral irregularities. II: Implications of EBL absorption

Hai-Jun Li, Wei Chao, Xiu-Hui Tan +1

The extragalactic background light (EBL) plays a crucial role in the propagation of high-energy particles throughout the Universe. In this work, we explore the impact of the EBL ab…

hep-ph2024

Upper limit on the axion-photon coupling from Markarian 421

Hai-Jun Li, Wei Chao, Yu-Feng Zhou

Markarian 421 is a well-known nearby BL Lac blazar at the redshift . Many previous works were investigated to constrain the axion-photon coupling from its TeV gamma-ray ob…

astro-ph.HE2023

Axion limits from the 10-year gamma-ray emission 1ES 1215+303

Hai-Jun Li, Wei Chao, Yu-Feng Zhou

We present the limits on photon to axionlike particle (ALP) coupling from the 10-year period observations of the TeV BL Lacertae blazar 1ES 1215+303 (with redshift ). The…

hep-ph2023★ 3 cited

Majorana Majoron and the Baryon Asymmetry of the Universe

Wei Chao, Ying-Quan Peng

The spontaneous breaking of the global lepton number, an accidental symmetry in the Standard Model of particle physics, results in a massless goldstone boson, the Majoron, which ca…

hep-ph2023

Light QCD Axion Dark Matter from Double Level Crossings

Hai-Jun Li, Ying-Quan Peng, Wei Chao +1

The even light QCD axion called the axion can both solve the strong CP problem and account for the dark matter (DM). We point out that the single and double level…