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Recently bulk Randall-Sundrum theories with the gauge group $SU(2)_L \timesSU(2)_R \times U(1)_{B-L}$ have drawn a lot of interest as an alternative toelectroweak symmetry breaking mechanism. These models are in better agreementwith electroweak precision data since custodial isospin symmetry on the IRbrane is protected by the extended bulk gauge symmetry. We comprehensivelystudy, in the $S^1/\ZZ$ orbifold, the bulk gauge and fermion fields with thegeneral boundary conditions as well as the bulk and localized mass terms.Master equations to determine the Kaluza-Klein (KK) mass spectra are derivedwithout any approximation, which is an important basic step for variousphenomenologies at high energy colliders. The correspondence between orbifoldboundary conditions and localized mass terms is demonstrated not only in thegauge sector but also in the fermion sector. As the localized mass increases,the first KK fermion mass is shown to decrease while the first KK gauge bosonmass to increase. The degree of gauge coupling universality violation iscomputed to be small in most parameter space, and its correlation with the massdifference between the top quark and light quark KK mode is also studied.Comment: 25 pages with 10 figures, Final version accepted by PR

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

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Kaluza-Klein masses of bulk fields with general boundary conditions inAdS5space