Recent Results from The Askaryan Radio Array
Abstract
The Askaryan Radio Array (ARA) is an ultra-high energy (UHE) neutrino telescope at the South Pole consisting of an array of radio antennas aimed at detecting the Askaryan radiation produced by neutrino interactions in the ice. Currently, the experiment has five stations in operation that have been deployed in stages since 2012. This contribution focuses on the development of a search for a diffuse flux of neutrinos in two ARA stations (A2 and A3) from 2013-2016. A background of events is expected in one station in each of two search channels in horizontal- and vertical-polarizations. The expected new constraints on the flux of ultra-high energy neutrinos based on four years of analysis with two stations improve on the previous limits set by ARA by a factor of about two. The projected sensitivity of ARA's five-station dataset is beginning to be competitive with other neutrino telescopes at high energies near GeV.
Cite
@article{arxiv.1907.11125,
title = {Recent Results from The Askaryan Radio Array},
author = {ARA Collaboration and P. Allison and S. Archambault and R. Bard and J. J. Beatty and M. Beheler-Amass and D. Z. Besson and M. Beydler and C. -C. Chen and C. -H. Chen and P. Chen and B. Clark and A. Clough and A. Connolly and J. Davies and C. Deaconu and M. A. DuVernois and C. Fender and E. Friedman and J. Hanson and K. Hanson and J. Haugen and K. D. Hoffman and E. Hong and S. -Y. Hsu and L. Hu and J. -J. Huang and M. -H. Huang and A. Ishihara and A. Karle and J. L. Kelley and R. Khandelwal and M. Kim and I. Kravchenko and J. Kruse and K. Kurusu and H. Landsman and U. A. Latif and A. Laundrie and C. -J. Li and T. C. Liu and M. -Y. Lu and K. Mase and T. Meures and J. Nam and R. J. Nichol and G. Nir and E. Oberla and A. O'Murchadha and Y. Pan and K. Ratzlaff and J. Roth and P. Sandstrom and D. Seckel and Y. -S. Shiao and A. Shultz and M. Song and J. Touart and A. G. Vieregg and M. -Z. Wang and S. -H. Wang and S. A. Wissel and S. Yoshida and R. Young},
journal= {arXiv preprint arXiv:1907.11125},
year = {2019}
}
Comments
7 pages, 5 figures, prepared for proceedings for the International Cosmic Ray Conference, Madison, WI, 2019