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Radio Detection of UHE Cosmic Rays and Neutrinos off the Moon

11 Nov 2024, 16:00
15m
Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall

Tsung-Dao Lee Institute

200

Speaker

LINJIE CHEN

Description

Particle cascades induced by ultra-high-energy (UHE) cosmic rays and neutrinos impacting on the lunar regolith usually radiate Cherenkov radio emissions due to the presence of excess negative charge, which is known as Askaryan effect. Many experiments have been proposed and carried out to detect such radio emissions in the lunar regolith. In this work, we studied the detection of the Cherenkov radio emissions with the lunar orbital radio telescope and the terrestrial radio telescope. We have carried out instrument modelling and analytic calculations for the analysis of aperture, flux and event rate, and the analyses show the detectability of the Cherenkov radiation. Based on the properties of the Cherenkov radiation, we have demonstrated that the cosmic ray and neutrino events could be reconstructed with the three ULW vector antennas onboard the lunar satellites via measurements of the Askaryan radio pulse intensity, polarizations, etc.

Primary author

Co-authors

Dr Jianli Zhang (National Astronomical Observatories, Chinese Academy of Sciences) Dr Lingmei Cheng (National Astronomical Observatories, Chinese Academy of Sciences)

Presentation materials

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