Radiowave method of high energy neutrino detection: calculation of the expected event rate

Abstract

The sensitivity of an ice radiowave detector to the anticipated high energy neutrino fluxes is calculated on the basis of a detailed threshold analysis and computation of the shower production rate. We show that diffuse neutrinos from Active Galactic Nuclei could be detectable in a radio detector of 1 km 2 area established in Central Antarctica.

Cherenkov radio pulses from EeV neutrino interactions: the LPM effect

“…Somewhat larger ranges can be obtained with a "TEM horn" [23] or biconical antennas [24]. The factor f is a fractional reduction of the electric field due to observation away from the Cherenkov direction, detection within half width corresponds to f = 2.…”

South Polar in situ radio-frequency ice attenuation

“…The balloon-borne ANITA (Antarctic Impulsive Transient Apparatus; Silvestri and others, 2005) project, the RICE (Radio Ice Cherenkov Experiment) project at the South Pole (Kravchenko and others, 2003a, b), the GLUE (Goldstone Lunar UHE neutrino Experiment) project (searching for radio signals from neutrino interactions in the lunar regolith) (Gorham and others, 2004), and the FORTE (Fast On-orbit Recording of Transient Events) search for neutrino interactions in the Greenland ice cap (Lehtinen and others, 2004) build on initial measurements in Antarctica of natural and man-made radio impulse background for the RAMAND (Radio wave Antarctic Muon And Neutrino Detector) experiment near continental station Vostok in 1985-90 (Markov and Zheleznykh, 1986;Butkevich and others, 1988;Dagkesamansky and Zheleznykh, 1989;Provorov and Zheleznykh, 1995) to achieve unprecedented sensitivity to neutrinos at energies in excess of 10 17 eV. Following a successful test flight in 2003/04 which enabled shake-down of the essential electronics and hardware, radio receivers mounted on the ANITA gondola during a 2006/07 circumpolar flight will synoptically scan the Antarctic ice for evidence of radio waves produced by cosmic neutrinos crashing into the ice cap.…”

Calculation methods for radio pulses from high energy showers

“…The detection of these pulses provides a possible alternative to neutrino detection particularly appropriate for very high energies [14][15][16] because the signal scales with the square of the primary energy [17,24]. The method is attractive because of the good transmission properties of large natural volumes of ice and sand and because much information about the charge distribution in the shower is preserved in the frequency and angular distribution of the pulses.…”