Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-05-31
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, 5 figures
Scientific paper
In extra-dimensional scenarios oscillations between active and sterile neutrinos can be governed by a new resonance in the oscillation amplitude. This resonance results when cancelation occurs between two phase differences, the usual kinematic one coming from the neutrino mass-squared difference, and a geometric one coming from the difference in travel times of the sterile neutrino through the bulk relative to the active neutrino confined to the brane. In this work we introduce a specific metric for the brane-bulk system, from which we explicitly derive extra-dimensional geodesics for the sterile neutrino, and ultimately the oscillation probability of the active-sterile two-state system. We find that for an asymmetrically-warped metric, the resonance condition involves both the neutrino energy E and the travel distance L on the brane. In other words, the resonant energy may be viewed as baseline-dependent. We show that to a good approximation, the resonance condition is not on E or on L, but rather on the product LE. The model is rich in implications, including the possibility of multiple solutions to the resonance condition, with ramifications for existing data sets, e.g., LSND and MiniBooNE. Some phenomenology with these brane-bulk resonances is discussed.
Hollenberg Sebastian
Micu Octavian
Päs Heinrich
Weiler Thomas J.
No associations
LandOfFree
Baseline-dependent neutrino oscillations with extra-dimensional shortcuts 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 Baseline-dependent neutrino oscillations with extra-dimensional shortcuts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Baseline-dependent neutrino oscillations with extra-dimensional shortcuts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-708606