Oblique corrections from Higgsless models in warped space
- Institute for High Energy Phenomenology, Newman Laboratory of Elementary Particle Physics, Cornell University, Ithaca, New York 14853 (United States)
- Service de Physique Theorique, CEA Saclay, F91191 Gif-sur-Yvette (France)
- Theory Division T-8, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
We calculate the tree-level oblique corrections to electroweak precision observables generated in Higgless models of electroweak symmetry breaking with a 5D SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} gauge group on a warped background. In the absence of brane induced kinetic terms (and equal left and right gauge couplings) we find the S parameter to be {approx}1.15, while T{approx}U{approx}0, as in technicolor theories. Planck brane induced kinetic terms and unequal left-right couplings can lower S, however for sufficiently low values of S tree-level unitarity will be lost. A kinetic term localized on the TeV brane for SU(2){sub D} will generically increase S, however an induced kinetic term for U(1){sub B-L} on the TeV brane will lower S. With an appropriate choice of the value of this induced kinetic term S{approx}0 can be achieved. In this case the mass of the lowest Z{sup '} mode will be lowered to about 300 GeV.
- OSTI ID:
- 20705385
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 70, Issue 7; Other Information: DOI: 10.1103/PhysRevD.70.075014; (c) 2004 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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