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  • Abu-Zayyad, T; Aida, R; Allen, M; Anderson, R; Barcikowski, E; Cady, R; Chiba, J; Chikawa, M; Cho, E J; Cho, W R; Fujii, H; Fujii, T; Fukuda, T; Fukushima, M; Hayashi, K; Hayashi, Y; Hayashida, N; Hibino, K; Hiyama, K; Honda, K; Iguchi, T; Ikeda, D; Ikuta, K; Inoue, N; Ishii, T; Ivanov, D; Iwamoto, S; Kadota, K; Kalashev, O; Kanbe, T; Kasahara, K; Kawai, H; Kawana, S; Kido, E; Kim, H K; Kitamura, S; Kondo, Y; Kuramoto, K; Kwon, Y J; Machida, S; Matsuda, T; Matsuura, T; Matsuyama, T; Matthews, J N; Minamino, M; Murano, Y; Nagasawa, K; Nakamura, T; Nam, S W; Nonaka, T; Ohnishi, M; Ohoka, H; Oki, K; Oku, D; Okuda, T; Oshima, A; Ozawa, S; Park, I H; Roh, S Y; Rubtsov, G I; Ryu, D; Sagawa, H; Sakurai, N; Sampson, A L; Scott, L M; Shah, P D; Shibata, T; Shimodaira, H; Shin, B K; Shin, J I; Shirahama, T; Sokolsky, P; Stratton, S R; Stroman, T; Takeda, M; Taketa, A; Tanaka, H; Tanaka, K; Tanaka, M; Thomson, G B; Tinyakov, P; Tkachev, I; Tokuno, H; Tomida, T; Tsunesada, Y; Tsutsumi, K; Tsuyuguchi, Y; Vasiloff, G; Wada, Y; Wong, T; Wood, M; Yamakawa, Y; Yamane, R; Yamaoka, H; Yamazaki, K; Yang, J; Yoneda, Y; Yoshii, H; Zollinger, R; Zundel, Z

    arXiv.org, 12/2013
    Paper, Journal Article

    We search for ultra-high energy photons by analyzing geometrical properties of shower fronts of events registered by the Telescope Array surface detector. By making use of an event-by-event statistical method, we derive upper limits on the absolute flux of primary photons with energies above 10^19, 10^19.5 and 10^20 eV based on the first three years of data taken.