Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-12-12
Phys.Rev. D67 (2003) 113001
Physics
High Energy Physics
High Energy Physics - Phenomenology
33 pages, LaTeX, minor rewordings, references added
Scientific paper
10.1103/PhysRevD.67.113001
We study the model-building conditions under which a sizeable $0\nu\beta\beta$-decay signal to the recently reported level of~0.4 eV is due to Kaluza--Klein singlet neutrinos in theories with large extra dimensions. Our analysis is based on 5-dimensional singlet-neutrino models compactified on an $S^1/Z_2$ orbifold, where the Standard--Model fields are localized on a 3-brane. We show that a successful interpretation of a positive signal within the above minimal 5-dimensional framework would require a non-vanishing shift of the 3-brane from the orbifold fixed points by an amount smaller than the typical scale (100 MeV)$^{-1}$ characterizing the Fermi nuclear momentum. The resulting 5-dimensional models predict a sizeable effective Majorana-neutrino mass that could be several orders of magnitude larger than the light neutrino masses. Most interestingly, the brane-shifted models with only one bulk sterile neutrino also predict novel trigonometric textures leading to mass scenarios with hierarchical active neutrinos and large $\nu_\mu$-$\nu_\tau$ and $\nu_e$-$\nu_\mu$ mixings that can fully explain the current atmospheric and solar neutrino data.
Bhattacharyya Gautam
Klapdor-Kleingrothaus Hans Volker
Päs Heinrich
Pilaftsis Apostolos
No associations
LandOfFree
Neutrinoless Double Beta Decay from Singlet Neutrinos in Extra Dimensions 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 Neutrinoless Double Beta Decay from Singlet Neutrinos in Extra Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutrinoless Double Beta Decay from Singlet Neutrinos in Extra Dimensions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-344572