Researchers at Tokai J-PARC report solar neutrino signal is slightly stronger at night

(Phys.org) --Researchers working on the J-PARC project in Tokai, Japan are reporting slightly stronger neutrino detection occurring at night, due they say to changes that occur in flavor as the neutrinos pass through the Earth. In their paper published in Physical Review Letters, the researchers describe the results they found when analyzing a year's worth of data from their detector, which showed a flux of solar neutrinos during nighttime that was approximately 3.2 percent greater than what was...