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arXiv · 1204.6201

Forbidden and invisible Z boson decays in covariant theta-exact noncommutative standard model

Raul Horvat·Amon Ilakovac·Dalibor Kekez·Josip Trampetic·Jiangyang You
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Abstract

The triple neutral gauge boson and direct U(1)_Y-neutrino interactions, being absent in ordinary field theory, can arise quite naturally in noncommutative gauge field theories. Using non-perturbative methods and a Seiberg-Witten map based covariant approach to noncommutative gauge theory, we have found theta-exact expressions for both interactions, thereby eliminating previous restrictions to low-energy phenomena. In particular we obtain for the first time the covariant, theta-exact, triple neutral gauge boson interactions within the noncommutative Standard Model gauge sector including an additional gauge-field deformation freedom. Finally we discuss implications for Z->2gamma and Z->neutrino-pair decays, and show that our results behave quite reasonably throughout all interaction energy scales.

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Raul Horvat, Amon Ilakovac, Dalibor Kekez, Josip Trampetic, Jiangyang You. 2012-04-27. Forbidden and invisible Z boson decays in covariant theta-exact noncommutative standard model. https://arxiv.org/abs/1204.6201

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