Overview of the Auger@TA project and preliminary results from Phase I

¹ Dept of Physics, Colorado School of Mines, Golden CO (USA)
² Dept of Physics, Case Western Reserve University, Cleveland OH (USA)
³ Institute for Cosmic-Ray Research, University of Tokyo, Tokyo (Japan)
⁴ Dept of Physics & Astronomy, University of California -Los Angeles, Los Angeles CA (USA)
⁵ Pierre Auger Observatory, Malargüe (Argentina)
⁶ Karlsruhe Institute of Technology, Karlsruhe (Germany)
⁷ Dept of Physics, Sungkyunkwan University, Jang-an-gu, Suwon (Korea)
⁸ Telescope Array Project, Salt Lake City UT (USA)

^* e-mail: auger_spokespersons@fnal.gov Full author list: http://www.auger.org/archive/authors_2018_10.html
^** e-mail: placeholder_ta_email@cosmic.utah.edu Full author list: http://www.telescopearray.org/research/collaborators

Published online: 17 May 2019

Abstract

We report on the first results of a unique in-situ experimental cross-calibration effort of the surface detector of the Pierre Auger Observatory and of the Telescope Array experiment (Auger@TA). In the first phase of Auger@TA, we performed surface detector station-to-station comparisons for a collection of extensive air showers landing near the experimental setup and detected by Telescope Array. Beyond the deduced cross-calibration curve between the Water-Cherenkov-based Auger and Scintillator-based TA Surface Detector stations, we also investigate the consistency of their response for individual reconstructed showers. The dataset is currently too small to draw firm conclusions as-of-yet. Hence, phase I data taking will continue even as we gear up for the deployment of an Auger micro-array within Telescope Array as part of Phase II of this work.