论文标题
从超新星SN1987A伽马射线数据中的时间信息中更新了类似轴突的粒子的约束
Updated constraints on axion-like particles from temporal information in supernova SN1987A gamma-ray data
论文作者
论文摘要
我们根据太阳最大任务数据从超新星SN1987A发出的轴突样颗粒（ALP）修改了伽马射线限制。我们改进并简化了从ALP衰减中预期的伽马射线信号的计算，同时还将其扩展到了非实用的ALP发射。我们第一次使用数据中的时间信息来更新关联的ALP-Photon耦合限制。对于ALP衰减，与以前的工作相比，由于接近SN1987A的伽马射线的吸收，我们更新的可能性仅对以前的工作有轻度影响。但是，对于银河磁场中的ALP转换，时间信息将ALP-Photon耦合的极限提高了1.4倍。
We revise gamma-ray limits on axion-like particles (ALPs) emitted from supernova SN1987A based on Solar Maximum Mission data. We improve and simplify the computation of the expected gamma-ray signal from ALP decays, while also extending it to non-instantaneous ALP emission. For the first time we make use of the temporal information in the data to update the associated ALP-photon coupling limits. For ALP decays, our updated likelihood only mildly affects the limit compared to previous works due to the absorption of gamma rays close to SN1987A. However, for ALP conversions in the Galactic magnetic field, temporal information improves the limit on the ALP-photon coupling by a factor of 1.4.
