Fermion generations, masses and mixings in a 6D brane model

Details Fermion generations, masses and mixings in a 6D brane model Fermion generations, masses and mixings in a 6D brane model

2006-02-22

arxiv.org/abs/hep-th/0602218v3

Phys.Rev. D73 (2006) 085007

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 0 figures, added 2 additional references. typos corrected. Matches published version

Scientific paper

10.1103/PhysRevD.73.085007

We study the motion of higher dimensional fermions in a non-singular 6D brane background with an increasing warp factor. This background acts as a potential well trapping fermions and fields of other spins near a 3+1 dimensional brane. By adjusting the shape of this potential well it is possible to obtain three normalizable zero mass modes giving a possible higher dimensional solution to the fermion generation puzzle. The three different zero mass modes correspond to the different angular momentum eigenvalues for rotations around the brane. This bulk angular momentum acts as the family or generation number. The three normalizable zero modes have different profiles with respect to the bulk, thus by coupling the higher dimensional fermion field to a higher dimensional scalar field it is possible to generate both a realistic mass hierarchy and realistic mixings between the different families.

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