arXiv 1109.30852011-09hep-thhep-ph

Yukawa couplings and seesaw neutrino masses in noncommutative gauge theory

Raul Horvat, Amon Ilakovac, Peter Schupp, Josip Trampetic, Jiangyang You

备注：: 10 pages, version to be published in Physics Letters B
DOI：: 10.1016/j.physletb.2012.07.046

英文摘要：

We consider Yukawa couplings in a theta-exact approach to noncommutative gauge field theory and show that both Dirac and singlet Majorana neutrino mass terms can be consistently accommodated. This shows that in fact the whole neutrino-mass extended standard model on noncommutative spacetime can the formulated in the new nonperturbative (in theta) approach which eliminates the previous restriction of Seiberg-Witten map based theories to low-energy phenomena. Spacetime noncommutativity induced couplings between neutrinos and photons as well as Z-bosons appear quite naturally in the model. We derive relevant Feynman rules for the type I seesaw mechanism.

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