@article{0cf759c5be1e49439219074e7e6fc796,
title = "Observation of Radar Echoes from High-Energy Particle Cascades",
abstract = "We report the observation of radar echoes from the ionization trails of high-energy particle cascades. Data were taken at the SLAC National Accelerator Laboratory, where the full electron beam (∼109 e- A t ∼10 GeV/e-) was directed into a plastic target to simulate an ultrahigh-energy neutrino interaction. The target was interrogated with radio waves, and coherent radio reflections from the cascades were detected with properties consistent with theoretical expectations. This is the first definitive observation of radar echoes from high-energy particle cascades, which may lead to a viable neutrino detection technology for energies -1016 eV.",
author = "S. Prohira and {De Vries}, {K. D.} and P. Allison and J. Beatty and D. Besson and A. Connolly and {Van Eijndhoven}, N. and C. Hast and Kuo, {C. Y.} and Latif, {U. A.} and T. Meures and J. Nam and A. Nozdrina and Ralston, {J. P.} and Z. Riesen and C. Sbrocco and J. Torres and S. Wissel",
note = "Funding Information: We thank the personnel at SLAC for providing us with excellent, stable beam and a safe, productive work environment. We also thank David Saltzberg for invaluable assistance during both runs of T576 and John Beacom for comments and revisions of early drafts of this Letter. This work was performed in part under SLAC DOE Contract No. DE-AC02-76SF00515. S. P. was partially supported by a U. S. Department of Energy Office of Science Graduate Student Research (SCGSR) award, administered by the Oak Ridge Institute for Science and Education for the DOE under Contract No. DE-SC-0014664. Computing resources were provided by the Ohio Supercomputer Center. KDdV was supported in part by the Flemish Foundation for Scientific Research FWO-12L3715N and the European Research Council under the European Unions Horizon 2020 research and innovation programme (Grant No. 805486). J. N. and C.-Y. K. were supported by the Vanguard program from the Taiwan Ministry of Science and Technology. D. B. acknowledges NRNU, MEPhI and the Megagrant 2013 program of Russia, via Agreement No. 14.А12.31.0006. Z. R. was supported by the Frost Fund at the California Polytechnic State University. S. W. was supported by NSF CAREER Award No. 172922. Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = mar,
day = "6",
doi = "10.1103/PhysRevLett.124.091101",
language = "English (US)",
volume = "124",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "9",
}