A simple model of reactor cores for reactor neutrino flux calculations for the KamLAND experiment
نویسندگان
چکیده
KamLAND is a reactor neutrino oscillation experiment with a very long baseline. This experiment successfully measured oscillation phenomena of reactor antineutrinos coming mainly from 53 reactors in Japan. In order to extract the results, it is necessary to accurately calculate time-dependent antineutrino spectra from all the reactors. A simple model of reactor cores and code implementing it were developed for this purpose. This paper describes the model of the reactor cores used in the KamLAND reactor analysis.
منابع مشابه
The Sensitivity of SNO+ to ∆m12 Using Reactor Anti-neutrino Data
Insofar as the detection of anti-neutrinos from nuclear reactors is concerned, the SNO+ detector – a 1 kilo-tonne liquid scintillator detector that inherits the experimental infrastructure from the recently finished SNO experiment – is expected to perform just as well as the KamLAND experiment. The most important difference between these experiments is the distribution of nuclear reactors: wher...
متن کاملKamland Results
The LMA solution of the solar neutrino problem has been explored with the 1,000 ton liquid scintillator detector, KamLAND. It utilizes nuclear power reactors distributing effectively ∼180 km from the experimental site. Comparing observed neutrino rate with the calculation of reactor operation histories, an evidence for reactor neutrino disappearance has been obtained from 162 ton·year exposure ...
متن کاملOn the measurement of solar neutrino oscillation parameters with KamLAND
A new reactor power plant Shika-2, with a power of approximately 4 GW and at a distance of about 88 km from the KamLAND detector is scheduled to start operating in March 2006. We study the impact of the ν̄e flux from this reactor on the sensitivity of the KamLAND experiment to the solar neutrino oscillation parameters. We present results on prospective determination of m2 and sin2 θ using the co...
متن کاملar X iv : h ep - p h / 02 12 12 6 v 1 9 D ec 2 00 2 MADPH - 02 - 1315 KamLAND and solar neutrino data eliminate the LOW solution
The KamLAND reactor antineutrino experiment has detected a 3.4σ flux suppression relative to the expectation if no neutrino oscillations occur. We combine Kam-LAND data with solar neutrino data and show that the LMA solution is the only viable oscillation solution to the solar neutrino problem at the 4.4σ C. L.
متن کاملSolar Neutrinos Before and After KamLAND
We use the recently reported KamLANDmeasurements on oscillations of reactor anti-neutrinos, together with the data of previously reported solar neutrino experiments, to show that: (1) the total B neutrino flux emitted by the Sun is 1.00(1± 0.06) of the standard solar model (BP00) predicted flux, (2) the fraction of the B flux that is in the form of sterile neutrinos is 0.00 −0.00, (3) the KamLA...
متن کامل