Proton stability in six dimensions - art. no. 181802

Authors
Appelquist, T Dobrescu, BA Ponton, E Yee, HU
Citation
T. Appelquist et al., Proton stability in six dimensions - art. no. 181802, PHYS REV L, 8718(18), 2001, pp. 1802
Citations number
15
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8718
Issue
18
Year of publication
2001
Database
ISI
SICI code
0031-9007(20011029)8718:18<1802:PSISD->2.0.ZU;2-K
Abstract
We show that Lorentz and gauge invariance explain the long proton lifetime within the standard model in six dimensions. The baryon-number violating op erators have mass dimension 15 or higher. Upon TeV-scale compactification o f the two universal extra dimensions on a square T-2/Z(2) orbifold, a discr ete subgroup of the six-dimensional Lorentz group continues to forbid dange rous operators.