Phased arrays: A strategy to lower the energy threshold for neutrinos

Stephanie Wissel, Jessica Avva, Keith Bechtol, Tyler Chesebro, Linda Cremonesi, Anusha Gupta, Andrew Ludwig, Wesley Messino, Christian Miki, Ryan Nichol, Eric Oberla, Andrew Romero-Wolf, David Saltzberg, Chandler Schlupf, Nora Shipp, Gary Varner, Abigail Vieregg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In-ice radio arrays are optimized for detecting the highest energy, cosmogenic neutrinos expected to be produced though cosmic ray interactions with background photons. However, there are two expected populations of high energy neutrinos: the astrophysical flux observed by IceCube (∼1 PeV) and the cosmogenic flux (∼ 1017 eV or 100 PeV). Typical radio arrays employ a noise-riding trigger, which limits their minimum energy threshold based on the background noise temperature of the ice. Phased radio arrays could lower the energy threshold by combining the signals from several channels before triggering, thereby improving the signal-to-noise at the trigger level. Reducing the energy threshold would allow radio experiments to more efficiently overlap with optical Cherenkov neutrino telescopes as well as for more efficient searches for cosmogenic neutrinos. We discuss the proposed technique and prototypical phased arrays deployed in an anechoic chamber and at Greenland's Summit Station.

Original languageEnglish (US)
Title of host publication7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
EditorsJorg R. Horandel, Robert Lahmann, Olaf Scholten, Sijbrand De Jong, Rolf Nahnhauer, Stijn Buitink
PublisherEDP Sciences
ISBN (Electronic)9782759890156
DOIs
StatePublished - Mar 15 2017
Event7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016 - Groningen, Netherlands
Duration: Jun 7 2016Jun 10 2016

Publication series

NameEPJ Web of Conferences
Volume135
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Other

Other7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016
CountryNetherlands
CityGroningen
Period6/7/166/10/16

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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  • Cite this

    Wissel, S., Avva, J., Bechtol, K., Chesebro, T., Cremonesi, L., Gupta, A., Ludwig, A., Messino, W., Miki, C., Nichol, R., Oberla, E., Romero-Wolf, A., Saltzberg, D., Schlupf, C., Shipp, N., Varner, G., & Vieregg, A. (2017). Phased arrays: A strategy to lower the energy threshold for neutrinos. In J. R. Horandel, R. Lahmann, O. Scholten, S. De Jong, R. Nahnhauer, & S. Buitink (Eds.), 7th International Conference on Acoustic and Radio EeV Neutrino Detection Activities, ARENA 2016 [05007] (EPJ Web of Conferences; Vol. 135). EDP Sciences. https://doi.org/10.1051/epjconf/201713505007