HE2 - High Energy Astrophysical neutrinos detection |
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Speaker |
Chen, Pisin |
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Coauthors |
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| Talk Title |
Radiowave Detection of Ultra High Energy Cosmic Neutrinos and Cosmic Rays |
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Abstract |
Ultra high energy cosmic rays (UHECR) with energies >1020 eV have been observed. Yet their origin remains a mystery. Where and how were they generated and accelerated? Traversing cosmic distance, UHECRs would necessarily interact with CMB photons and produce ultra high energy cosmic neutrinos (UHECN). Such cosmogenic, GZK (Greisen-Zatsepin-Kuzmin) neutrinos are guaranteed to exist, but have never been observed. The investigations in both UHECR and UHECN would help to shed much light on our understanding of the highest energy universe as well as providing us rich discovery potentials in neutrino physics. It is commonly agreed that such events can best be observed by detecting the radio wave signals emitted by their induced shower particles, based on the Askaryan effect in ice or the geo-synchrotron emission in air. In this talk we review the science potentials, the detection methods, and the status of the ongoing radiowave-based projects such as the balloon-borne ANITA, the ground-based ARA and ARIANNA in Antarctica, and TAROGE in Taiwan. |
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