pith. sign in

arxiv: 1205.5067 · v3 · pith:HPO235SKnew · submitted 2012-05-22 · 🌌 astro-ph.HE

The Cosmic Ray Energy Spectrum Observed with the Surface Detector of the Telescope Array Experiment

T. Abu-Zayyad , R. Aida , M. Allen , R. Anderson , R. Azuma , E. Barcikowski , J.W. Belz , D.R. Bergman
show 132 more authors
S.A. Blake R. Cady B.G. Cheon J. Chiba M. Chikawa E.J. Cho W.R. Cho H. Fujii T. Fujii T. Fukuda M. Fukushima W. Hanlon K. Hayashi Y. Hayashi N. Hayashida K. Hibino K. Hiyama K. Honda T. Iguchi D. Ikeda K. Ikuta N. Inoue T. Ishii R. Ishimori D. Ivanov S. Iwamoto C.C.H. Jui K. Kadota F. Kakimoto O. Kalashev T. Kanbe K. Kasahara H. Kawai S. Kawakami S. Kawana E. Kido H.B. Kim H.K. Kim J.H. Kim K. Kitamoto S. Kitamura Y. Kitamura K. Kobayashi Y. Kobayashi Y. Kondo K. Kuramoto V. Kuzmin Y.J. Kwon J. Lan S.I. Lim S. Machida K. Martens T. Matsuda T. Matsuura T. Matsuyama J.N. Matthews M. Minamino K. Miyata Y. Murano I. Myers K. Nagasawa S. Nagataki T. Nakamura S.W. Nam T. Nonaka S. Ogio M. Ohnishi H. Ohoka K. Oki D. Oku T. Okuda A. Oshima S. Ozawa I.H. Park M.S. Pshirkov D.C. Rodriguez S.Y. Roh G. Rubtsov D. Ryu H. Sagawa N. Sakurai A.L. Sampson L.M. Scott P.D. Shah F. Shibata T. Shibata H. Shimodaira B.K. Shin J.I. Shin T. Shirahama J.D. Smith P. Sokolsky B.T. Stokes S.R. Stratton T.A. Stroman S. Suzuki Y. Takahashi M. Takeda A. Taketa M. Takita Y. Tameda H. Tanaka K. Tanaka M. Tanaka S.B. Thomas G.B. Thomson P. Tinyakov I. Tkachev H. Tokuno T. Tomida S. Troitsky Y. Tsunesada K. Tsutsumi Y. Tsuyuguchi Y. Uchihori S. Udo H. Ukai G. Vasiloff Y. Wada T. Wong M. Wood Y. Yamakawa R. Yamane H. Yamaoka K. Yamazaki J. Yang Y. Yoneda S. Yoshida H. Yoshii X. Zhou R. Zollinger Z. Zundel
This is my paper
classification 🌌 astro-ph.HE
keywords energydetectorcosmicsurfacespectrumultra-higharrayenergies
0
0 comments X
read the original abstract

The Telescope Array (TA) collaboration has measured the energy spectrum of ultra-high energy cosmic rays with primary energies above 1.6 x 10^(18) eV. This measurement is based upon four years of observation by the surface detector component of TA. The spectrum shows a dip at an energy of 4.6 x 10^(18) eV and a steepening at 5.4 x 10^(19) eV which is consistent with the expectation from the GZK cutoff. We present the results of a technique, new to the analysis of ultra-high energy cosmic ray surface detector data, that involves generating a complete simulation of ultra-high energy cosmic rays striking the TA surface detector. The procedure starts with shower simulations using the CORSIKA Monte Carlo program where we have solved the problems caused by use of the "thinning" approximation. This simulation method allows us to make an accurate calculation of the acceptance of the detector for the energies concerned.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Particle Astrophysics with High and Ultrahigh Energy Neutrinos

    astro-ph.HE 2025-11 unverdicted novelty 2.0

    Recent high and ultrahigh energy neutrino detections open a new observational window to the universe by revealing sources and processes inaccessible via photons.