# Study of Ultra-High Energy Cosmic Ray composition using Telescope Array’s Middle Drum detector and surface array in hybrid mode

@article{Abbasi2015StudyOU, title={Study of Ultra-High Energy Cosmic Ray composition using Telescope Array’s Middle Drum detector and surface array in hybrid mode}, author={R. U. Abbasi and M. Abe and T. Abu-Zayyad and M. Allen and R. Anderson and R. Azuma and E. Barcikowski and J. Belz and D. R. Bergman and S. A. Blake and R. Cady and M. Chae and B. G. Cheon and J. Chiba and M. Chikawa and W. Cho and T. Fujii and M. Fukushima and T. Goto and W. Hanlon and Y. Hayashi and N. Hayashida and K. Hibino and K. Honda and D. Ikeda and N. Inoue and T. Ishii and R. Ishimori and H. Ito and D. Ivanov and C. Jui and K. Kadota and F. Kakimoto and O. Kalashev and K. Kasahara and H. Kawai and S. Kawakami and S. Kawana and K. Kawata and E. Kido and H. Kim and J. Kim and S. Kitamura and Y. Kitamura and V. Kuzmin and Y. Kwon and J. Lan and S. I. Lim and J. P. Lundquist and K. Machida and K. Martens and T. Matsuda and T. Matsuyama and J. Matthews and M. Minamino and Y. Mukai and I. Myers and K. Nagasawa and S. Nagataki and T. Nakamura and T. Nonaka and A. Nozato and S. Ogio and J. Ogura and M. Ohnishi and H. Oh-oka and K. Oki and T. Okuda and M. Ono and A. Oshima and S. Ozawa and I. Park and M. Pshirkov and D. C. Rodriguez and G. Rubtsov and D. Ryu and H. Sagawa and N. Sakurai and A. Sampson and L. M. Scott and P. Shah and F. Shibata and T. Shibata and H. Shimodaira and B. Shin and H. Shin and J. Smith and P. Sokolsky and R. W. Springer and B. Stokes and S. R. Stratton and T. Stroman and T. Suzawa and M. Takamura and M. Takeda and R. Takeishi and A. Taketa and M. Takita and Y. Tameda and H. Tanaka and K. Tanaka and M. Tanaka and S. Thomas and G. Thomson and P. Tinyakov and I. Tkachev and H. Tokuno and T. Tomida and S. Troitsky and Y. Tsunesada and K. Tsutsumi and Y. Uchihori and S. Udo and F. Urban and G. Vasiloff and T. Wong and R. Yamane and H. Yamaoka and K. Yamazaki and J. Yang and K. Yashiro and Y. Yoneda and S. Yoshida and H. Yoshiia and R. Zollinger and Z. Zundel}, journal={Astroparticle Physics}, year={2015}, volume={64}, pages={49-62} }

Abstract Previous measurements of the composition of Ultra-High Energy Cosmic Rays (UHECRs) made by the High Resolution Fly’s Eye (HiRes) and Pierre Auger Observatory (PAO) are seemingly contradictory, but utilize different detection methods, as HiRes was a stereo detector and PAO is a hybrid detector. The five year Telescope Array (TA) Middle Drum hybrid composition measurement is similar in some, but not all, respects in methodology to PAO, and good agreement is evident between data and a… CONTINUE READING

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