论文标题
从GRB 221009a解释高能光子所需的轴突状颗粒的参数
Parameters of axion-like particles required to explain high-energy photons from GRB 221009A
论文作者
论文摘要
最近的天体物理瞬态Swift J1913.1+1946可能与RedShift Z = 0.151处的伽马射线爆发GRB 221009a有关。瞬态伴随着高能量的伽马射线，高达18个TEV，Lhaaso观察到了TEV，地毯2检测到的251 TEV的光子样气淋浴。由于对宇宙背景辐射的两对产生，这些能量的伽马射线无法从源的声明距离到达我们。如果识别和红移测量正确，则需要新物理学来解释数据。一种可能性是调用与光子混合但不会在背景辐射上减弱的轴状颗粒（阿尔卑斯山）。在这里，我们探索了ALP参数空间，并发现以银河系而不是在白术空间中的ALP-Photon混合可能有助于解释观察结果。但是，鉴于事件的银河系纬度较低，银河瞬态的错误识别仍然是一个未知的解释。
Recent astrophysical transient Swift J1913.1+1946 is possibly associated with the gamma-ray burst GRB 221009A at the redshift z=0.151. The transient was accompanied by very high-energy gamma rays up to 18 TeV observed by LHAASO and a photon-like air shower of 251 TeV detected by Carpet-2. These energetic gamma rays cannot reach us from the claimed distance of the source because of the pair production on cosmic background radiation. If the identification and redshift measurements are correct, one would require new physics to explain the data. One possibility invokes axion-like particles (ALPs) which mix with photons but do not attenuate on the background radiation. Here we explore the ALP parameter space and find that the ALP-photon mixing in the Milky Way, and not in the intergalactic space, may help to explain the observations. However, given the low Galactic latitude of the event, misidentification with a Galactic transient remains an undiscarded explanation.
