Measuring cosmogenic Li9 background in a reactor neutrino experiment
arXiv:hep-ex/0604034 · doi:10.1016/j.nima.2006.04.047
Abstract
Cosmogenic isotopes 9Li and 8He produced in the detector are the most problematic background in the reactor neutrino experiments designed to determine precisely the neutrino mixing angle theta13. The average time interval of cosmic-ray muons in the detector is often on the order of the lifetimes of the 9Li and 8He isotopes. We have developed a method for determining this kind of background from the distribution of time since last muon for muon rate up to about 20 Hz when the background-to-signal ratio is small, on the order of a few percents.
arXiv comment9 pages, 3 figures. To appear in NIM A
References in corpus (4)
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- Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion
- Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station
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- New measurement of via neutron capture on hydrogen at Daya Bay
- Reactor Neutrino Experiments: Present and Future
- First measurement of high-energy reactor antineutrinos at Daya Bay
- Measurement of cosmic muon-induced neutron background with ISMRAN detector in a non-reactor environment