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The lunar Askaryan technique, which involves searching for Askaryan radio pulses from particle cascades in the outer layers of the Moon, is a method for using the lunar surface as an extremely large detector of ultra-high-energy particles.…

The origin of the highest-energy particles in nature, the ultra-high-energy (UHE) cosmic rays, is still unknown. In order to resolve this mystery, very large detectors are required to probe the low flux of these particles - or to detect the…

天体物理仪器与方法 · 物理学 2016-08-09 C. W. James , J. D. Bray , R. D. Ekers

The Moon provides a huge effective detector volume for ultrahigh energy cosmic neutrinos, which generate coherent radio pulses in the lunar surface layer due to the Askaryan effect. In light of presently considered lunar missions, we…

天体物理学 · 物理学 2008-11-26 O. Stål , J. E. S. Bergman , B. Thidé , L. K. S. Daldorff , G. Ingelman

Ultra-high energy (UHE) neutrinos and cosmic rays initiate particle cascades underneath the Moon's surface. These cascades have a negative charge excess and radiate Cherenkov radio emission in a process known as the Askaryan effect. The…

高能天体物理现象 · 物理学 2015-05-18 S. Buitink , O. Scholten , J. Bacelar , R. Braun , A. G. de Bruyn , H. Falcke , K. Singh , B. Stappers , R. G. Strom , R. al Yahyaoui

The lunar technique is a method for maximising the collection area for ultra-high-energy (UHE) cosmic ray and neutrino searches. The method uses either ground-based radio telescopes or lunar orbiters to search for Askaryan emission from…

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.…

天体物理仪器与方法 · 物理学 2023-02-15 Linjie Chen , Marc Klein Wolt , Amin Aminaei , Stijn Buitink , Heino Falcke

We present the first full-wavelength numerical simulations of the electric field generated by cosmic ray impacts into the Moon. Billions of cosmic rays fall onto the Moon every year. Ultra-high energy cosmic ray impacts produce secondary…

The use of the Moon as a detector volume for ultra-high-energy neutrinos and cosmic rays, by searching for the Askaryan radio pulse produced when they interact in the lunar regolith, has been attempted by a range of projects over the past…

天体物理仪器与方法 · 物理学 2017-04-05 Justin D. Bray

The lunar Askaryan technique is a method to study the highest-energy cosmic rays, and their predicted counterparts, the ultra-high-energy neutrinos. By observing the Moon with a radio telescope, and searching for the characteristic…

The Lunar Cherenkov technique is a promising method for UHE neutrino and cosmic ray detection which aims to detect nanosecond radio pulses produced during particle interactions in the Lunar regolith. For low frequency experiments, such as…

天体物理仪器与方法 · 物理学 2015-06-16 Rebecca McFadden , Olaf Scholten , Maaijke Mevius

Neutrinos interact with matter only through weak processes with low cross-section. To detect cosmic neutrinos most efforts have relied on the detection of visible Vavilov-Cerenkov light in detectors embedded in the target volumes. To access…

天体物理学 · 物理学 2007-05-23 Oscar Stål , Jan Bergman , Bo Thidé , Lennart Åhlén , Gunnar Ingelman

Various experiments have been conducted to search for the radio emission from ultra-high-energy particles interacting in the lunar regolith. Although they have not yielded any detections, they have been successful in establishing upper…

天体物理仪器与方法 · 物理学 2016-01-13 Justin Bray

Ultra high energy (UHE) particles of cosmic origin impact the lunar regolith and produce radio signals through Askaryan effect, signals that can be detected by Earth based radio telescopes. We calculate the expected sensitivity for…

天体物理学 · 物理学 2008-11-26 Sukanta Panda , Subhendra Mohanty , Padmanabhan Janardhan , Oscar Stål

The origin of the most energetic particles in nature, the ultra-high-energy (UHE) cosmic rays, is still a mystery. Only the most energetic of these have sufficiently small angular deflections to be used for directional studies, and their…

Lunar Cherenkov experiments aim to detect nanosecond pulses of Cherenkov emission produced during UHE cosmic ray or neutrino interactions in the lunar regolith. Pulses from these interactions are dispersed, and therefore reduced in…

天体物理仪器与方法 · 物理学 2013-06-04 Rebecca McFadden , Ron Ekers , Justin Bray

When high-energy cosmic rays impinge on a dense dielectric medium, radio waves are produced through the Askaryan effect. We show that at wavelengths comparable to the length of the shower produced by an Ultra-High Energy cosmic ray or…

天体物理学 · 物理学 2013-02-25 O. Scholten , J. Bacelar , R. Braun , A. G. de Bruyn , H. Falcke , B. Stappers , R. G. Strom

We present results of the simulation of the intensity distribution of radio pulses from the Moon due to interaction of EeV neutrinos with lunar regolith. The radiation mechanism is of coherent \^Cerenkov radiation of the negative charge…

天体物理学 · 物理学 2007-05-23 A. R. Beresnyak

We present simulation results for the detection of ultra-high energy (UHE) cosmic ray (CR) and neutrino interactions in the Moon by radio-telescopes. We simulate the expected radio signal at Earth from such interactions, expanding on…

天体物理学 · 物理学 2009-06-23 C. W. James , R. J. Protheroe

Ultra-high-energy neutrinos and cosmic rays produce short radio flashes through the Askaryan effect when they impact on the Moon. Earthbound radio telescopes can search the Lunar surface for these signals. A new generation of low-…

Ultrahigh-energy neutrinos (UHE$\nu$s) can be used as a valuable probe of superheavy dark matter above $\sim 10^9$ GeV, the latter being difficult to probe with collider and direct detection experiments due to the feebly interacting nature.…

高能物理 - 唯象学 · 物理学 2025-04-15 Saikat Das , Jose Alonso Carpio , Kohta Murase
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