On vacuum oscillations solution of the solar neutrino problem

✍ Scribed by Alexei Yu. Smirnov

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 461 KB
• Volume: 70
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(98)00442-3

✦ Synopsis

Experimental signatures of vacuum oscillations solution of the solar neutrino problem are considered. This solution predicts a strict correlation between a distortion of the neutrino energy spectrum and an amplitude of seasonal variations of the neutrino flux. The slope parameter which characterizes a distortion of the recoil electron energy spectrum in the Super-Kamiokande experiment and the seasonal asymmetry of the signal have been calculated in a wide range of oscillation parameters. The correlation of the slope and asymmetry gives crucial criteria for identification or exclusion of this solution. For the positive slope indicated by preliminary Super-Kamiokande data we predict (40 -60) % enhancement of the seasonal variations.