Near-future discovery of the diffuse flux of ultrahigh-energy cosmic neutrinos

Valera, Víctor B.; Bustamante, Mauricio; Gläser, Christian

doi:10.1103/physrevd.107.043019

Cited by 15 publications

(22 citation statements)

References 171 publications

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“…The red line highlights one event per energy bin of this analysis. (To appear in the IceCube-Gen2 Technical Design Report; figure inspired by [22]. )…”

Section: Pos(arena2022)057mentioning

confidence: 99%

Towards IceCube-Gen2: Plans for the in-ice radio array

Nelles¹

2023

Proceedings of 9th International Workshop on Acoustic and Radio EeV Neutrino Detection Activities — PoS(ARENA2022)

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Building on the success of IceCube at the South Pole, the next generation experiment IceCube-Gen2 is taking shape. Next to an extension of the optical array, further developing the optical detector learning for the IceCube-Upgrade currently in preparation, IceCube-Gen2 is planned to feature a large in-ice radio array targeting neutrinos beyond PeV energies. This radio array will build on heritage from many former and existing radio neutrino experiments. It will dominate the sensitivity of IceCube-Gen2 at EeV energies, improving at least an order of magnitude in sensitivity over existing arrays. IceCube-Gen2 will also feature a much enlarged surface array, including in-air radio antennas targeting air showers. This contribution will highlight the current status of IceCube-Gen2 with a focus on the in-ice radio array.

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“…The red line highlights one event per energy bin of this analysis. (To appear in the IceCube-Gen2 Technical Design Report; figure inspired by [22]. )…”

Section: Pos(arena2022)057mentioning

confidence: 99%

Towards IceCube-Gen2: Plans for the in-ice radio array

Nelles¹

2023

Proceedings of 9th International Workshop on Acoustic and Radio EeV Neutrino Detection Activities — PoS(ARENA2022)

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“…Fortunately, upcoming UHE neutrino telescopes have a real chance of discovering them in the next 10-20 years, even if their flux is low [37,39,40,80]. We capitalize on this by making state-of-the-art forecasts of the UHE source discovery via UHE neutrino multiplets, i.e., clusters of neutrinos from similar positions in the sky, indicative of a source.…”

Section: Jcap03(2023)026mentioning

confidence: 99%

Near-future discovery of point sources of ultra-high-energy neutrinos

Fiorillo

Bustamante²,

Valera³

2023

J. Cosmol. Astropart. Phys.

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Upcoming neutrino telescopes may discover ultra-high-energy (UHE) cosmic neutrinos, with energies beyond 100 PeV, in the next 10–20 years. Finding their sources would identify guaranteed sites of interaction of UHE cosmic rays, whose origin is unknown. We search for sources by looking for multiplets of UHE neutrinos arriving from similar directions. Our forecasts are state-of-the-art, geared at neutrino radio-detection in IceCube-Gen2. They account for detector energy and angular response, and for critical, but uncertain backgrounds. Sources at declination of -45° to 0° will be easiest to discover. Discovering even one steady-state source in 10 years would imply that the source has an UHE neutrino luminosity at least larger than about 1043 erg/s (depending on the source redshift evolution). Discovering no transient source would disfavor transient sources brighter than 1053 erg as dominant. Our results aim to inform the design of upcoming detectors.

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“…To compute realistic event rates at the radio array of IceCube-Gen2, we employ a detailed procedure based on state-of-the-art simulations [8,24]. In brief, UHE neutrinos with energy 𝐸 𝜈 interact with nucleons at rest in the detector volume after propagating through the Earth.…”

Section: Event-rate Estimation In the Radio Component Of Icecube-gen2mentioning

confidence: 99%

Comprehensive Measurement Forecasts of the EeV Neutrino-Nucleon Cross Section with Cosmic Neutrinos at IceCube-Gen2

Valera¹,

Bustamante²,

Gläser³

2023

Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)

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The investigation of neutrino interactions with matter serves as a valuable tool for understanding the fundamental structure of nucleons and potentially uncovering novel physics phenomena. To date, the neutrino-nucleon cross section has been examined across a range of energies spanning from a few hundred MeV to PeV. However, the pursuit of ultra-high-energy (UHE) cosmic neutrinos, surpassing 100 PeV in energy, holds the promise of further advancements. In the next 10-20 years, UHE neutrino telescopes, currently in the planning stage, may ultimately succeed in their detection. This article presents pioneering and comprehensive estimation forecasts for the ultra-high-energy neutrino-nucleon cross section, with a specific focus on the employment of neutrino radio-detection within the IceCube-Gen2 experiment. The study incorporates cuttingedge methodologies in UHE neutrino flux prediction, neutrino propagation within the Earth, radio detection techniques, and the treatment of background data to facilitate accurate cross section measurement projections. Assuming the successful detection of at least a few tens of UHE neutrino-induced events over a 10-year period, IceCube-Gen2 could achieve, for the first time, the measurement of the cross section at center-of-mass energies of approximately √ 𝑠 ≈ 10-100 TeV. Furthermore, if the number of events exceeds one hundred, the precision of the cross section measurement could be comparable to its corresponding theoretical prediction.

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Near-future discovery of the diffuse flux of ultrahigh-energy cosmic neutrinos

Cited by 15 publications

References 171 publications

Towards IceCube-Gen2: Plans for the in-ice radio array

Towards IceCube-Gen2: Plans for the in-ice radio array

Near-future discovery of point sources of ultra-high-energy neutrinos

Comprehensive Measurement Forecasts of the EeV Neutrino-Nucleon Cross Section with Cosmic Neutrinos at IceCube-Gen2

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