Proton Stability in Six Dimensions

Abstract

We show that Lorentz and gauge invariance explain the long proton lifetime within the standard model in six dimensions. The baryon-number violating operators have mass dimension 15 or higher. Upon TeV-scale compactification of the two universal extra dimensions on a square $T^2/Z_2$ orbifold, a discrete subgroup of the 6-dimensional Lorentz group continues to forbid dangerous operators.

PRL accepted version

References in corpus (3)

• Casimir Energy and Radius Stabilization in Five and Six Dimensional Orbifolds
• Universal Extra Dimensions and the Muon Magnetic Moment
• Can extra dimensions accessible to the SM explain the recent measurement of anomalous magnetic moment of the muon?

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