2012/06/30 by Ye Li, Qiang Yuan · 2 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Computer science #Dark Matter and Cosmic Phenomena #Detector #Energy (signal processing) #Fermi Gamma-ray Space Telescope #Gamma ray #Line (geometry) #Nuclear physics #Optics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Resolution (logic) #Sigma #astro-ph.HE #hep-ph
paper · pdf · doi:10.1016/j.physletb.2012.07.057
published as Phys. Lett. B 715 (2012) 35 · 4 pages, 2 figures and 1 table; minor revision; accepted by Phys. Lett. B
openalex publication_date 2012/07/27 · arxiv created 2012/07/31 · arxiv updated 2012/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Recently some hints of the existence of γ -ray line around 130 GeV are reported according to the analysis of Fermi-LAT data. If confirmed it would be the first direct evidence to show the existence of new physics beyond the standard model. Here we suggest that using the forthcoming high energy resolution γ -ray detectors, such as CALET and DAMPE, we may test whether it is real line structure or just the background effect. For DAMPE like detector with designed energy resolution ∼1.5%, a line significance will reach 11 σ for the same statistics as Fermi-LAT. For about 1.4 yr survey observation, DAMPE may detect a 5 σ signal of such a γ -ray line.