MSW effects in vacuum oscillations

Feb, 2000
4 pages
Published in:
  • Phys.Rev.Lett. 85 (2000) 936-939
e-Print:
Report number:
  • UCB-PTH-00-04,
  • LBNL-45037,
  • LBL-45037

Citations per year

2000200620122018202405101520
Abstract: (arXiv)
We point out that for solar neutrino oscillations with the mass-squared difference of Delta m^2 ~ 10^-10 - 10^-9 eV^2, traditionally known as ``vacuum oscillation'' range, the solar matter effects are non-negligible, particularly for the low energy pp neutrinos. One consequence of this is that the values of the mixing angle theta and pi/2-theta are not equivalent, leading to the need to consider the entire physical range of the mixing angle 0<=theta<=pi/2 when determining the allowed values of the neutrino oscillation parameters.
Note:
  • 4 pages, 5 figures. The calculation of the level crossing probability is now performed numerically using the BP2000 solar density profile. Conclusions unchanged
  • neutrino: solar
  • neutrino: oscillation
  • neutrino: mass difference
  • MSW effect
  • neutrino: mixing angle
  • numerical calculations: interpretation of experiments