By Matthew Joseph Mottram
The winner of UCL's annual HEP thesis prize, this paintings describes an research of the information from the second one flight of the Antarctica Impulsive temporary Antenna (ANITA). ANITA is a balloon-borne test that searches for radio signs originating from ultra-high strength neutrinos and cosmic rays interacting with the Antarctic ice or air. the quest for ultrahigh power neutrinos of astrophysical starting place is among the striking experimental demanding situations of the twenty first century. The ANITA scan used to be designed to be the main delicate device to ultra-high strength neutrinos that originate from the interactions of cosmic rays with the cosmic microwave heritage. The method and result of the neutrino and cosmic ray searches are provided within the thesis.
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Additional info for A Search for Ultra-High Energy Neutrinos and Cosmic-Rays with ANITA-2
1 , where n is the refractive The Cherenkov emission angle is given by cos(θC ) = nβ index of the medium and β is the particle velocity in terms of the speed of light. 8◦ . For Earthskimming showers, only the top portion of the resultant Cherenkov emission cone will be incident on the ice-air boundary at angles below the critical angle. 5 shows that neutrino-induced Askaryan emission observable by ANITA will therefore be predominantly vertically polarised. 1 There is the possibility that interactions of some down-going neutrinos may be observable by ANITA through reflected signals, particularly if the interactions take place within one of the two large ice-shelfs in Antarctica where the coefficient of reflection from the ice-sea-water boundary is very high and the ice thickness is <1 km .
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A Search for Ultra-High Energy Neutrinos and Cosmic-Rays with ANITA-2 by Matthew Joseph Mottram