Abstract
Using data measured by the KASCADE-Grande air shower array, an upper limit to the flux of ultra-high energy gamma-rays in the primary cosmic-ray flux is determined. KASCADE-Grande measures the electromagnetic and muonic components for individual air showers in the energy range from 10 PeV up to 1 EeV. The analysis is performed by selecting air showers with low muon contents. A preliminary result on the 90% C.L. upper limit to the relative intensity of gamma-ray with respect to cosmic ray primaries is presented and compared with limits reported by other measurements.
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CITATION STYLE
Kang, D., Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., … Zabierowski, J. (2015). A limit on the diffuse gamma-rays measured with KASCADE-Grande. In Journal of Physics: Conference Series (Vol. 632). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/632/1/012013
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