尤物视频

Synopsis

Dark matter remains one of the most significant unsolved problems in modern physics. One of the leading candidates is the axion, a theoretical particle proposed in the 1970s by Wilczek and Weinberg to explain discrepancies between theoretical predictions and experimental observations of CP violation in Quantum Chromodynamics (QCD). Because axions are extremely light, on the order of one part in ten billion of the electron mass, they have never been detected.

In 2023, Noordhuis et al. suggested that axions could potentially be observed through photon emissions in regions with exceptionally strong magnetic fields, such as those surrounding magnetars (neutron stars with intense magnetic fields). Although follow-up experimental efforts did not confirm the existence of axions, this idea nevertheless sparked considerable interest within the astrophysics community. Then in November 2024, Manzari et al. refined these theoretical predictions and proposed using gamma-ray signals from a core-collapse supernova (CCSN) to detect axions. Their work indicates that if axions have masses above roughly 50 eV, their signatures should be observable in the gamma-ray spectrum of the next nearby CCSN.

In this talk, I will explain the principle behind detecting axions via gamma-ray bursts from magnetars, outline how this model has rapidly gained traction among astrophysicists, and discuss the potential implications of future CCSN observations for our understanding of axions and dark matter.