Proton Stability in Six Dimensions
- 15 October 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (18) , 181802
- https://doi.org/10.1103/physrevlett.87.181802
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 orbifold, a discrete subgroup of the six-dimensional Lorentz group continues to forbid dangerous operators.
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