Suggestion of coherent radio reflections from an electron-beam induced particle cascade

Prohira, S.; Vries, Krijn de; Besson, D.; Connolly, A.; Hast, C.; Latif, Uzair Abdul; Meures, T.; Nozdrina, A.; Ralston, John P.; Riesen, Z.; Saltzberg, D.; Torres, Jorge; Wissel, S.; Zuo, Xinzhe

doi:10.1103/physrevd.100.072003

Cited by 12 publications

(15 citation statements)

References 21 publications

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“…The radar echo method has been verified in the lab [11,12], with first observations of radar echoes from particle cascades recently reported [15,16]. These lab tests are critical steps in developing an ultimate radar echo neutrino observatory.…”

Section: Introductionmentioning

confidence: 86%

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The Radar Echo Telescope for Cosmic Rays: Pathfinder Experiment for a Next-Generation Neutrino Observatory

Prohira,

de Vries,

Allison

et al. 2021

Preprint

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The Radar Echo Telescope for Cosmic Rays (RET-CR) is a recently initiated experiment designed to detect the englacial cascade of a cosmic-ray initiated air shower via in-ice radar, toward the goal of a full-scale, nextgeneration experiment to detect ultra high energy neutrinos in polar ice. For cosmic rays with a primary energy greater than 10 PeV, roughly 10% of an air-shower's energy reaches the surface of a high elevation ice-sheet ( 2 km) concentrated into a radius of roughly 10 cm. This penetrating shower core creates an in-ice cascade many orders of magnitude more dense than the preceding in-air cascade. This dense cascade can be detected via the radar echo technique, where transmitted radio is reflected from the ionization deposit left in the wake of the cascade. RET-CR will test the radar echo method in nature, with the in-ice cascade of a cosmic-ray initiated air-shower serving as a test beam. We present the projected event rate and sensitivity based upon a three part simulation using CORSIKA, GEANT4, and RadioScatter. RET-CR expects ∼1 radar echo event per day.

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Section: Introductionmentioning

confidence: 86%

“…This method has promising projected sensitivity to neutrinos in the 10-100 PeV range, providing complementarity with existing and future techniques for measuring UHEN. [11][12][13][14][15][16] A high energy particle (e.g. neutrino) interacting in a dense medium (e.g.…”

Section: Introductionmentioning

confidence: 99%

The Radar Echo Telescope for Cosmic Rays: Pathfinder Experiment for a Next-Generation Neutrino Observatory

Prohira,

de Vries,

Allison

et al. 2021

Preprint

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“…Although the data obtained during these experiments were inconclusive, it was used to gain insight into detector properties (non-linearities in our systems) and future analysis methods. It was the T-576 experiment performed at the Stanford Linear Accelerator Center (SLAC) [19,20] that lead to the final breakthrough with the first ever detection of radio reflections from a particle cascade. The cascade was induced by directing a high-energy electron beam in a block of HDPE, having very similar properties to an in-ice induced particle cascade.…”

Section: From Beam Test To In-nature Neutrino Detectionmentioning

confidence: 99%

The Radar Echo Telescope for Neutrinos (RET-N)

Vries¹,

Prohira²,

Allison³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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We present the Radar Echo Telescope for Neutrinos (RET-N). RET-N focuses on the detection of the cosmic neutrino flux at >PeV energies by means of the radar detection technique. This method aims to bridge the energy gap between the diffuse neutrino flux detected by IceCube up to a few PeV and the sought for cosmogenic neutrinos at EeV energies by the in-ice Askaryan detectors, as well as the air-shower radio detectors. The radar echo method is based on the detection the ionization trail in the wake of a high-energy neutrino-induced particle cascade in ice. This technique, recently validated in a beam test (T576 at SLAC) is also the basis for the RET-N pathfinder experiment, RET-CR, which is currently under development. Based on the T-576 results, we show that the radar echo method leads to very promising sensitivities to detect cosmic neutrinos in the PeV-EeV region and above. We present the RET-N project and the results of our sensitivity studies.

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“…Finally, the authors of [65] proposed to use the POEMMA satellite detector in a target-of-opportunity mode to search for cosmic neutrinos above 20 PeV from transient sources. An interesting new idea for the detection of UHE neutrinos was proposed by the authors of [66]. In an experiment set up at SLAC, they directed an electron beam into a plastic target to simulate a 10 19 eV neutrino-induced shower in ice.…”

Section: Pos(icrc2019)028mentioning

confidence: 99%

Neutrinos at the 36 th International Cosmic Ray Conference 2019

Kappes¹

2019

Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)

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High-energy neutrinos astrophysics is still a very young field of research. Until recently, the only extra-solar neutrinos observed originated from SN1987A and had MeV energies, well below the energies expected to be emitted from violent cosmic phenomena like supernova remnants, active galactic nuclei and gamma-ray bursts. In 2013, after many decades of efforts, the first cosmic high-energy neutrinos were detected, finally opening this highly anticipated new window for the exploration of the non-thermal universe. In 2017, this was followed by the first plausible association of a high-energy neutrino with a source through a world-spanning multi-messenger campaign. Over 180 contributions at ICRC 2019 impressively demonstrated the dynamics of the field and the importance of multi-messenger efforts. Here, I attempt to provide an overview over the field, presenting a selection from the contributions to ICRC based on the corresponding rapporteur talk at the conference in Madison.

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Suggestion of coherent radio reflections from an electron-beam induced particle cascade

Cited by 12 publications

References 21 publications

The Radar Echo Telescope for Cosmic Rays: Pathfinder Experiment for a Next-Generation Neutrino Observatory

The Radar Echo Telescope for Cosmic Rays: Pathfinder Experiment for a Next-Generation Neutrino Observatory

The Radar Echo Telescope for Neutrinos (RET-N)

Neutrinos at the 36 th International Cosmic Ray Conference 2019

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