Ultrahigh-energy neutrino flux as a probe of large extra dimensions
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Lykken, Joseph; Mena Requejo, Olga; Razzaque, Soebur
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Aquest document és un/a article, creat/da en: 2007
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A suppression in the spectrum of ultrahigh-energy (UHE, greater than or similar to 10(18) eV) neutrinos will be present in extra-dimensional scenarios, due to enhanced neutrino-anti-neutrino annihilation processes with the supernova relic neutrinos. In the n > 4 scenario, n being the number of extra dimensions, neutrinos cannot be responsible for the highest energy events observed in the UHE cosmic ray spectrum. A direct implication of these extra-dimensional interactions would be the absence of UHE neutrinos in ongoing and future neutrino telescopes. |
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