Improved flux limits for neutrinos with energies above 10(22) eV from observations with the Westerbork Synthesis Radio Telescope
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| Publication date | 2009 |
| Journal | Physical Review Letters |
| Volume | Issue number | 103 | 19 |
| Pages (from-to) | 191301 |
| Number of pages | 4 |
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| Abstract | Particle cascades initiated by ultrahigh energy neutrinos in the lunar regolith will emit an electromagnetic pulse with a time duration of the order of nanoseconds through a process known as the Askaryan effect. It has been shown that in an observing window around 150 MHz there is a maximum chance for detecting this radiation with radio telescopes commonly used in astronomy. In 50 h of observation time with the Westerbork Synthesis Radio Telescope array we have set a new limit on the flux of neutrinos, summed over all flavors, with energies in excess of 4x10(22) eV. |
| Document type | Article |
| Note | DOI: 10.1103/PhysRevLett.103.191301; eprintid: arXiv:0910.4745 |
| Language | English |
| Published at | https://doi.org/10.1103/PhysRevLett.103.191301 |
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