报告题目：Constraining and detecting sub-keV dark photon

报 告 人：Haipeng An，Perimeter Institute

报告时间：3月27日（周四）下午3:00

报告地点：物理系三楼报告厅

报告摘要：I will talk about the stellar production of vector states V within the minimal model of "darkphotons". I will show that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as \kappa^2 m_V^2, where \kappa and m_V are the mixing angle with the photon and the mass of the dark state. This is in contrast with earlier erroneous claims in the literature that the emission rate decouples as the forth power of the mass. We find that stellar bounds for m_V < 10 ev are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions. i will also talk about better ways to detect the ev and sub-ev scale solar "dark photon" using dark matter detectors.