Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-03-16
JHEP 0605 (2006) 030
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages
Scientific paper
10.1088/1126-6708/2006/05/030
In the 5D theory in which only 3 generation right-handed neutrinos are in the bulk, the neutrino flavor mixings and the mass spectrum can be constructed through the seesaw mechanism. The 5D seesaw is easily calculated just by a replacement of the Majorana mass eigenvalues, M_i, by 2 M_*tan(h)[\pi RM_i] (M_*: 5D Planck scale, R: compactification radius). The 5D features appear when the bulk mass, which induces the 4D Majorana mass, is the same as the compactification scale or larger than it. Depending on the type of bulk mass, the seesaw scales of the 3 generations are strongly split (the tan-function case) or degenerate (the tanh-function case). In the split case, the seesaw enhancement is naturally realized. The single right-handed neutrino dominance works in a simple setup, and some specific mass textures, which are just assumptions in the 4D setup, can be naturally obtained in 5 dimensions. The degenerate case is also useful for a suitable neutrino flavor structure.
No associations
LandOfFree
5D seesaw, flavor structure, and mass textures 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 5D seesaw, flavor structure, and mass textures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 5D seesaw, flavor structure, and mass textures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-80173