UHE neutrino searches using a Lunar target: First Results from the RESUN search
T. R. Jaeger, R. L. Mutel, K. G. Gayley

TL;DR
This paper reports initial results from the RESUN lunar neutrino search using the VLA, setting upper limits on UHE neutrino flux and outlining plans for increased sensitivity with future observations.
Contribution
First results from the RESUN lunar neutrino search using the VLA, establishing flux upper limits and proposing enhancements for future, more sensitive searches.
Findings
No lunar-origin pulses detected in 45 hours
Set upper limits on neutrino flux at 90% confidence
Future observations will improve sensitivity by an order of magnitude
Abstract
During the past decade there have been several attempts to detect cosmogenic ultra high energy (UHE) neutrinos by searching for radio Cerenkov bursts resulting from charged impact showers in terrestrial ice or the lunar regolith. So far these radio searches have yielded no detections, but the inferred flux upper limits have started to constrain physical models for UHE neutrino generation. For searches which use the Moon as a target, we summarize the physics of the interaction, properties of the resulting Cerenkov radio pulse, detection statistics, effective aperture scaling laws, and derivation of upper limits for isotropic and point source models. We report on initial results from the RESUN search, which uses the Expanded Very Large Array configured in multiple sub-arrays of four antennas at 1.45 GHz pointing along the lunar limb. We detected no pulses of lunar origin during 45…
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