Arrival direction reconstruction of ultra-high-energy neutrinos with ARA

Kim, Myoungchul; Archambault, S.; Mase, K.; Yoshida, Shigeru; Ishihara, A.

doi:10.22323/1.358.0933

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…The signal arrival direction can be determined to sub-degree precision via the signal arrival times to the different antennas of a detector station [199,208,209]. The index-ofrefraction profile is known well enough to achieve sub-degree precision on the signal direction, as tested in measurements at the South Pole [208].…”

Section: Reconstruction Of Energy and Directionmentioning

confidence: 99%

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

Valera

Bustamante

Gläser

2022

J. High Energ. Phys.

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Neutrino interactions with protons and neutrons probe their deep structure and may reveal new physics. The higher the neutrino energy, the sharper the probe. So far, the neutrino-nucleon (νN) cross section is known across neutrino energies from a few hundred MeV to a few PeV. Soon, ultra-high-energy (UHE) cosmic neutrinos, with energies above 100 PeV, could take us farther. So far, they have evaded discovery, but upcoming UHE neutrino telescopes endeavor to find them. We present the first detailed measurement forecasts of the UHE νN cross section, geared to IceCube-Gen2, one of the leading detectors under planning. We use state-of-the-art ingredients in every stage of our forecasts: in the UHE neutrino flux predictions, the neutrino propagation inside Earth, the emission of neutrino-induced radio signals in the detector, their propagation and detection, and the treatment of backgrounds. After 10 years, if at least a few tens of UHE neutrino-induced events are detected, IceCube-Gen2 could measure the νN cross section at center-of-mass energies of $$ \sqrt{s} $$ s ≈ 10–100 TeV for the first time, with a precision comparable to that of its theory prediction.

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Section: Reconstruction Of Energy and Directionmentioning

confidence: 99%

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

Valera

Bustamante

Gläser

2022

J. High Energ. Phys.

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“…In previous studies we have shown that polarization is the dominant uncertainty on the neutrino direction [7,12,13]. The other parameters that impact the neutrino direction, namely signal arrival direction [20] and viewing angle, can typically be measured more precisely. Thus, an accurate reconstruction of signal polarization is the key to improve reconstructed neutrino angular resolution.…”

Section: Jcap04(2022)022mentioning

confidence: 99%

Measuring the polarization reconstruction resolution of the ARIANNA neutrino detector with cosmic rays

Anker¹,

Baldi²,

Barwick³

et al. 2022

J. Cosmol. Astropart. Phys.

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The ARIANNA detector is designed to detect neutrinos with energies above 1017 eV. Due to the similarities in generated radio signals, cosmic rays are often used as test beams for neutrino detectors. Some ARIANNA detector stations are equipped with antennas capable of detecting air showers. Since the radio emission properties of air showers are well understood, and the polarization of the radio signal can be predicted from the arrival direction, cosmic rays can be used as a proxy to assess the reconstruction capabilities of the ARIANNA neutrino detector. We report on dedicated efforts of reconstructing the polarization of cosmic-ray radio pulses. After correcting for difference in hardware, the two stations used in this study showed similar performance in terms of event rate and agreed with simulation. Subselecting high quality cosmic rays, the polarizations of these cosmic rays were reconstructed with a resolution of 2.5° (68% containment), which agrees with the expected value obtained from simulation. A large fraction of this resolution originates from uncertainties in the predicted polarization because of the contribution of the subdominant Askaryan effect in addition to the dominant geomagnetic emission. Subselecting events with a zenith angle greater than 70° removes most influence of the Askaryan emission, and, with limited statistics, we found the polarization uncertainty is reduced to 1.3° (68% containment).

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“…The signal arrival direction can be determined to subdegree precision via the signal arrival times to the different antennas of a detector station [199,208,209]. The index-of-refraction profile is known well enough to achieve sub-degree precision on the signal direction, as tested in measurements at the South Pole [208].…”

Section: Reconstruction Of Energy and Directionmentioning

confidence: 99%

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

Valera,

Bustamante,

Glaser

2022

Preprint

View full text Add to dashboard Cite

Neutrino interactions with protons and neutrons probe their deep structure and may reveal new physics. The higher the neutrino energy, the sharper the probe. So far, the neutrino-nucleon (νN ) cross section is known across neutrino energies from a few hundred MeV to a few PeV. Soon, ultrahigh-energy (UHE) cosmic neutrinos, with energies above 100 PeV, could take us farther. So far, they have evaded discovery, but upcoming UHE neutrino telescopes endeavor to find them. We present the first detailed measurement forecasts of the UHE νN cross section, geared to IceCube-Gen2, one of the leading detectors under planning. We use state-of-the-art ingredients in every stage of our forecasts: in the UHE neutrino flux predictions, the neutrino propagation inside Earth, the emission of neutrino-induced radio signals in the detector, their propagation and detection, and the treatment of backgrounds. After 10 years, if at least a few tens of UHE neutrino-induced events are detected, IceCube-Gen2 could measure the νN cross section at center-of-mass energies of √ s ≈ 10-100 TeV for the first time, with a precision comparable to that of its theory prediction.

show abstract

Arrival direction reconstruction of ultra-high-energy neutrinos with ARA

Cited by 6 publications

References 7 publications

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

Measuring the polarization reconstruction resolution of the ARIANNA neutrino detector with cosmic rays

The ultra-high-energy neutrino-nucleon cross section: measurement forecasts for an era of cosmic EeV-neutrino discovery

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