Kaluza-Klein masses of bulk fields with general boundary conditions in AdS{sub 5} space
- Department of Physics and IPAP, Yonsei University, Seoul 120-749 (Korea, Republic of)
Recently bulk Randall-Sundrum theories with the gauge group SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} have drawn a lot of interest as an alternative to the electroweak symmetry breaking mechanism. These models are in better agreement with electroweak precision data since custodial isospin symmetry on the IR-brane is protected by the extended bulk gauge symmetry. We comprehensively study, in the S{sup 1}/Z{sub 2}xZ{sub 2}{sup '} orbifold, the bulk gauge and fermion fields with the general boundary conditions as well as the bulk and localized mass terms. Master equations to determine the Kaluza-Klein (KK) mass spectra are derived without any approximation, which is an important basic step for various phenomenologies at high energy colliders. The correspondence between orbifold boundary conditions and localized mass terms is demonstrated not only in the gauge 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 boson mass is shown to increase. The degree of gauge coupling universality violation is computed to be small in most parameter space, and its correlation with the mass difference between the top quark and light quark KK mode is also studied.
- OSTI ID:
- 20709324
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 71, Issue 10; Other Information: DOI: 10.1103/PhysRevD.71.106004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BOUNDARY CONDITIONS
CORRELATIONS
COUPLING
D QUARKS
GAUGE INVARIANCE
HIGGS MODEL
INTERMEDIATE BOSONS
ISOSPIN
KALUZA-KLEIN THEORY
MASS DIFFERENCE
MASS SPECTRA
QUANTUM FIELD THEORY
REST MASS
SPACE-TIME
SU-2 GROUPS
SYMMETRY
SYMMETRY BREAKING
T QUARKS
U QUARKS