Oblique corrections from Higgsless models in warped space

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.075014· OSTI ID:20705385

Cacciapaglia, Giacomo; Csaki, Csaba ^[1]; Grojean, Christophe ^[2]; Terning, John ^[3]

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1. Institute for High Energy Phenomenology, Newman Laboratory of Elementary Particle Physics, Cornell University, Ithaca, New York 14853 (United States)
2. Service de Physique Theorique, CEA Saclay, F91191 Gif-sur-Yvette (France)
3. 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, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
CORRECTIONS
GEV RANGE
HIGGS MODEL
REST MASS
SPACE-TIME
STANDARD MODEL
SU-2 GROUPS
SYMMETRY BREAKING
TEV RANGE
TREES
U-1 GROUPS
UNITARITY
UNITARY SYMMETRY
WEINBERG-SALAM GAUGE MODEL
Z NEUTRAL BOSONS