Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-06-07
JHEP 9909:015,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, LaTeX, 3 ps figures (psfig.sty)
Scientific paper
10.1088/1126-6708/1999/09/015
The vacuum oscillation (VO) solution to the solar anomaly requires an extremely small neutrino mass splitting, Delta m^2_{sol}\leq 10^{-10} eV^2. We study under which circumstances this small splitting (whatever its origin) is or is not spoiled by radiative corrections. The results depend dramatically on the type of neutrino spectrum. If m_1^2 \sim m_2^2 \geq m_3^2, radiative corrections always induce too large mass splittings. Moreover, if m_1 and m_2 have equal signs, the solar mixing angle is driven by the renormalization group evolution to very small values, incompatible with the VO scenario (however, the results could be consistent with the small-angle MSW scenario). If m_1 and m_2 have opposite signs, the results are analogous, except for some small (though interesting) windows in which the VO solution may be natural with moderate fine-tuning. Finally, for a hierarchical spectrum of neutrinos, m_1^2 << m_2^2 << m_3^2, radiative corrections are not dangerous, and therefore this scenario is the only plausible one for the VO solution.
Casas Alberto J.
Espinosa Jose Ramon
Ibarra Aitor
Navarro Ignacio
No associations
LandOfFree
Theoretical Constraints on the Vacuum Oscillation Solution to the Solar Neutrino Problem does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Theoretical Constraints on the Vacuum Oscillation Solution to the Solar Neutrino Problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical Constraints on the Vacuum Oscillation Solution to the Solar Neutrino Problem will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-653867