Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-05
Phys.Lett.B683:289-293,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages
Scientific paper
10.1016/j.physletb.2009.12.034
The seesaw-induced neutrino mass is discussed in a generic class of curved spacetime, including the flat and warped extra dimensions. For Majorana masses in the bulk and on the boundary, the exact forms of seesaw-induced masses are derived by using the Kaluza-Klein mode expansion and the lepton number violating correlator for bulk fermion. It is found that the neutrino mass is determined without the knowledge of wave functions and whole background geometry when the metric factor is fixed on the boundary, e.g. by solving the hierarchy problem.
Watanabe Atsushi
Yoshioka Koichi
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