Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-06-24
Physics
High Energy Physics
High Energy Physics - Phenomenology
Contribution to 40th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 5-12 Mar 2005.,
Scientific paper
We present a study of proton decay in a supersymmetric $ SO(10)$ gauge theory in six dimensions compactified on an orbifold. The dimension 5 proton decay operators are absent, but the dimension 6 are enhanced due to the presence of KK towers. We resum the KK modes up to the cut-off of the theory and find the rate for the dominant mode $p \to \pi^0 e^{+} $. We explore also the flavour dependence, due to the different localization of states in the extra dimensions and find that it is possible to distinguish the model from the usual 4D $ SU(5)/SO(10)$ models.
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